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Elucidation of solid-liquid-gas interfacial phenomena induced by pulse laser and its practical application

Research Project

Project/Area Number 18KK0103
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Research InstitutionTohoku University

Principal Investigator

Soyama Hitoshi  東北大学, 工学研究科, 教授 (90211995)

Co-Investigator(Kenkyū-buntansha) 伊賀 由佳  東北大学, 流体科学研究所, 教授 (50375119)
佐々木 裕章  東北大学, 工学研究科, 助教 (90812040)
鴇田 駿  東北大学, 工学研究科, 助教 (60807668)
Project Period (FY) 2018-10-09 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2021: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsキャビテーション / レーザキャビテーション / レーザアブレージョン / 機械的表面改質 / 疲労強度 / 金属製積層造形材 / パルスレーザ / 残留応力 / 液滴損傷 / レーザアブレーション
Outline of Final Research Achievements

The purpose of this study is to elucidate the solid-gas-liquid interface phenomenon that occurs when a pulsed laser is applied to a metal surface placed in water, and then applied for mechanical surface treatment. In this study, it was focused on the laser cavitation which is produced after laser ablation. In laser peening, it is thought that the impact force due to laser ablation is utilized, and there was no interest in laser cavitation, but the principal investigator found that the impact force due to laser cavitation is greater than that due to laser ablation. The improvement of fatigue strength of metal materials by surface modification using laser cavitation was demonstrated.

Academic Significance and Societal Importance of the Research Achievements

CAD/CAMデータから直接的に造形できるなどの利点から,金属製積層造形材が医工学用インプラントなどへの適用が期待されている。しかしながら,その疲労強度がバルク材の半分適度しかないことが実用化への障壁になっている。本研究では,パルスレーザを用いた固気液界面現象を解明して,パルスレーザで生じるレーザキャビテーションの衝撃力により金属製積層造形材の疲労強度を2倍以上向上できることを実証した。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (74 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (14 results) Journal Article (22 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 20 results,  Open Access: 11 results) Presentation (29 results) (of which Int'l Joint Research: 13 results,  Invited: 9 results) Remarks (9 results)

  • [Int'l Joint Research] University of Oxford/University of Manchester/Coventry University(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Washington/UCDAVIS(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Deutsches Elektronen-SYnchrotron (DESY)(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] National Tech. Univ. of Ukraine(ウクライナ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Ljubljana(スロベニア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Washington/UCDAVIS/University of Cincinnati(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Manchester/University of Oxford/Coventry University(英国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] UNIVPM(イタリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] European XFEL(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Nevada, Reno/UCDAVIS/University of Cincinnati(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Oxford/University of Manchester/Coventry University(英国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] European XFEL/ZAL(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] UCDAVISカリフォルニア大学デービス校/シンシナティ大学(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] コベントリー大学(英国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] A critical comparative review of cavitation peening and other surface peening methods2022

    • Author(s)
      Soyama Hitoshi、Korsunsky Alexander M.
    • Journal Title

      Journal of Materials Processing Technology

      Volume: 305 Pages: 117586-117586

    • DOI

      10.1016/j.jmatprotec.2022.117586

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Surface integrity of heat treatable magnesium alloy AZ80A after cavitation peening2022

    • Author(s)
      ?agar Sebastjan、Soyama Hitoshi、Grum Janez、?turm Roman
    • Journal Title

      Journal of Materials Research and Technology

      Volume: 17 Pages: 2098-2107

    • DOI

      10.1016/j.jmrt.2022.01.156

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Optimization of Residual Stress Measurement Conditions for a 2D Method Using X-ray Diffraction and Its Application for Stainless Steel Treated by Laser Cavitation Peening2021

    • Author(s)
      Soyama Hitoshi、Kuji Chieko、Kuriyagawa Tsunemoto、Chighizola Christopher R.、Hill Michael R.
    • Journal Title

      Materials

      Volume: 14 Issue: 11 Pages: 2772-2772

    • DOI

      10.3390/ma14112772

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The High Cycle Fatigue Behavior of Surface Treated Electron Beam Melted Titanium Ti6Al4V2021

    • Author(s)
      Mojib Melody、Soyama Hitoshi、Sanders Daniel、Arola Dwayne、Ramulu M.
    • Journal Title

      ASME 2021 International Mechanical Engineering Congress and Exposition

      Volume: IMECE2021-71975 Pages: 1-10

    • DOI

      10.1115/imece2021-71975

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of compressive residual stress introduced by cavitation peening and shot peening on the improvement of fatigue strength of stainless steel2021

    • Author(s)
      Soyama Hitoshi、Chighizola Christopher R.、Hill Michael R.
    • Journal Title

      Journal of Materials Processing Technology

      Volume: 288 Pages: 116877-116877

    • DOI

      10.1016/j.jmatprotec.2020.116877

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Depth-profiling of residual stress and microstructure for austenitic stainless steel surface treated by cavitation, shot and laser peening2021

    • Author(s)
      Kumagai Masayoshi、Curd Matthew E.、Soyama Hitoshi、Ungar Tamas、Ribarik Gabor、Withers Philip J.
    • Journal Title

      Materials Science and Engineering: A

      Volume: 813 Pages: 141037-141037

    • DOI

      10.1016/j.msea.2021.141037

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Use of Cavitation Abrasive Surface Finishing to Improve the Fatigue Properties of Additive Manufactured Titanium Alloy Ti6Al4V2021

    • Author(s)
      Sanders Daniel、Soyama Hitoshi、De Silva Channa
    • Journal Title

      SAE technical paper

      Volume: 2021-01-0024 Pages: 1-7

    • DOI

      10.4271/2021-01-0024

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Luminescence intensity of vortex cavitation in a Venturi tube changing with cavitation number2021

    • Author(s)
      Soyama Hitoshi
    • Journal Title

      Ultrasonics Sonochemistry

      Volume: 71 Pages: 105389-105389

    • DOI

      10.1016/j.ultsonch.2020.105389

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Laser Cavitation Peening and Its Application for Improving the Fatigue Strength of Welded Parts2021

    • Author(s)
      Soyama Hitoshi
    • Journal Title

      Metals

      Volume: 11 Issue: 4 Pages: 531-531

    • DOI

      10.3390/met11040531

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] キャビテーション噴流式材料試験(ASTM G134)の改訂について2021

    • Author(s)
      祖山均
    • Journal Title

      ターボ機械

      Volume: 49 Pages: 65-72

    • NAID

      40022476645

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Various Peening Methods on the Fatigue Properties of Titanium Alloy Ti6Al4V Manufactured by Direct Metal Laser Sintering and Electron Beam Melting2020

    • Author(s)
      Soyama Hitoshi、Takeo Fumio
    • Journal Title

      Materials

      Volume: 13 Issue: 10 Pages: 2216-2216

    • DOI

      10.3390/ma13102216

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cavitation erosion resistance of the titanium alloy Ti-6Al-4V manufactured through additive manufacturing with various peening methods2020

    • Author(s)
      Sasaki Hirotoshi、Takeo Fuimo、Soyama Hitoshi
    • Journal Title

      Wear

      Volume: 462-463 Pages: 203518-203518

    • DOI

      10.1016/j.wear.2020.203518

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cavitating Jet: A Review2020

    • Author(s)
      Soyama Hitoshi
    • Journal Title

      Applied Sciences

      Volume: 10 Issue: 20 Pages: 7280-7280

    • DOI

      10.3390/app10207280

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Cavitation Peening on Fatigue Properties in Friction Stir Welded Aluminum Alloy AA57542020

    • Author(s)
      Soyama Hitoshi、Simoncini Michela、Cabibbo Marcello
    • Journal Title

      Metals

      Volume: 11 Issue: 1 Pages: 59-59

    • DOI

      10.3390/met11010059

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cavitation Abrasive Surface Finishing (CASF) for the Improvement of Fatigue Strength of Titanium Alloy Ti6Al4V Manufactured by Electron Beam Melting2020

    • Author(s)
      Soyama Hitoshi、Sanders G. Daniel
    • Journal Title

      Metal Finishing News

      Volume: 21 Pages: 56-58

    • Related Report
      2020 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Cavitation Peening: A Review2020

    • Author(s)
      Hitoshi Soyama
    • Journal Title

      Metals

      Volume: 10 (2) Issue: 2 Pages: 1-27

    • DOI

      10.3390/met10020270

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison between Shot Peening, Cavitation Peening, and Laser Peening by Observation of Crack Initiation and Crack Growth in Stainless Steel2019

    • Author(s)
      Hitoshi Soyama
    • Journal Title

      Metals

      Volume: 10 (1) Issue: 1 Pages: 1-16

    • DOI

      10.3390/met10010063

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improvement of Fatigue Strength of Additive Manufactured Metals by Solid-Liquid-Gas Interfacial Phenomena Induced by Pulse Laser2019

    • Author(s)
      Hitoshi Soyama
    • Journal Title

      IOP Conference Series: Materials Science and Engineering

      Volume: 611 Issue: 1 Pages: 1-9

    • DOI

      10.1088/1757-899x/611/1/012002

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fundamentals and Applications of Cavitation Peening Comparing with Shot Peening and Laser Peening2019

    • Author(s)
      Hitosi Soyama
    • Journal Title

      Lecture Notes in Mechanical Engineering, Advanced Surface Enhancement

      Volume: 1 Pages: 76-87

    • DOI

      10.1007/978-981-15-0054-1_9

    • ISBN
      9789811500534, 9789811500541
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Mechanical Properties on Fatigue Life Enhancement of Additive Manufactured Titanium Alloy Treated by Various Peening Methods2019

    • Author(s)
      Yuya Okura, Hirotoshi Sasaki and Hitoshi Soyama
    • Journal Title

      Lecture Notes in Mechanical Engineering, Advanced Surface Enhancement

      Volume: 1 Pages: 88-96

    • DOI

      10.1007/978-981-15-0054-1_10

    • ISBN
      9789811500534, 9789811500541
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Bubble Radius on Ability of Submerged Laser Peening2019

    • Author(s)
      Sasaki Hirotoshi、Iga Yuka、Soyama Hitoshi
    • Journal Title

      Lecture Notes in Mechanical Engineering, Advanced Surface Enhancement

      Volume: 1 Pages: 283-291

    • DOI

      10.1007/978-981-15-0054-1_29

    • ISBN
      9789811500534, 9789811500541
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comparison of Shot peening, Cavitation Peening and Submerged Laser Peening on Improvement of Fatigue Strength of Additive Manufactured Metal2019

    • Author(s)
      Hitoshi Soyama
    • Journal Title

      Metal Finishig News

      Volume: 20 (5) Pages: 58-60

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Presentation] Improvement of Fatigue Properties of Additively Manufactured Titanium Alloy by Cavitation Peening Using a Pulsed Laser and a Cavitating Jet2022

    • Author(s)
      Soyama Hitoshi
    • Organizer
      Global Webinar on 3D Printing and Additive Modelling
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cavitation peening for enhancement of fatigue properties of additive manufactured metals2021

    • Author(s)
      Soyama Hitoshi
    • Organizer
      ASTM International Conference on Additive Manufacturing (ASTM ICAM )
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Enhancement of Luminescence Intensity of Hydrodynamic Cavitation Enhancement of Luminescence Intensity of Hydrodynamic Cavitation2021

    • Author(s)
      Soyama Hitoshi
    • Organizer
      ESS-JSS-AOSS 1st JOINT SONOCHEMISTRY CONFERENCE
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Aspect of Bubbles in Narrow Tube Imitating Root Canal Induced by Er:YAG Laser2021

    • Author(s)
      Soyama Hitoshi, Yahata Yoshio, Saito Masahiro
    • Organizer
      11th International Symposium on Cavitation
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of Luminescence Intensity of Hydrodynamic Cavitation Considering Sound Velocity in the Cavitating Flow Field2021

    • Author(s)
      Soyama Hitoshi
    • Organizer
      11th International Symposium on Cavitation
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Use of Cavitation Abrasive Surface Finishing to Improve the Fatigue Properties of Additive Manufactured Titanium Alloy Ti6Al4V2021

    • Author(s)
      Sanders G. Daniel, Soyama Hitoshi, De Silva Channa
    • Organizer
      SAE International, AEROTECH2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanical Surface Treatment of Additive Manufactured Ti6Al4V by Cavitation Peening2020

    • Author(s)
      Sasaki Hirotoshi、Iga Yuka、Soyama Hitoshi
    • Organizer
      2020 Spring International Conference on Material Sciences and Technology (MST-S)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ステンレス鋼の疲労寿命向上における 水中レーザピーニングと水膜レーザピーニングの比較2020

    • Author(s)
      祖山均
    • Organizer
      日本材料学会第69期学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 扇型水噴流におけるノズル形状の影響2020

    • Author(s)
      祖山均
    • Organizer
      日本混相流学会 混相流シンポジウム2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 水中パルスレーザにより歯根管を模した細管内に生じる気泡の観察2020

    • Author(s)
      祖山均,八幡祥生,齋藤正寛
    • Organizer
      日本混相流学会 混相流シンポジウム2020
    • Related Report
      2020 Research-status Report
  • [Presentation] Mechanical Surface Treatment of Additive Manufactured Metallic Material by Solid-Liquid-Gas Interfacial Phenomena Induced by Pulse Laser2019

    • Author(s)
      Hitoshi Soyama
    • Organizer
      International Conference on Materials Research and Nanotechnology 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Observation of Cavitation around a Submerged Fan Jet2019

    • Author(s)
      Hitoshi Soyama
    • Organizer
      The 12th Pacific Rim International Conference on Water Jet Technology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Improvement of Fatigue Strength of Additive Manufactured Metals by Solid-Liquid-Gas Interfacial Phenomena Induced by Pulse Laser2019

    • Author(s)
      Hitoshi Soyama
    • Organizer
      2019 International Conference on Advanced Material Research and Processing Technology (AMRPT2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Improvement of Fatigue Strength of Light Metals by Mechanical Surface Treatment2019

    • Author(s)
      Hitoshi Soyama
    • Organizer
      International Conference on Light Alloys and Metal Materials (LAMM 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fluid/Material Coupled Numerical Simulation of Bubble Collapse Near a Wall2019

    • Author(s)
      Yuka Iga
    • Organizer
      The 3rd International Symposium of Cavitation and Multiphase Flow (ISCM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Numerical Study of Mechanism of Deep Erosion Pit in High-speed Liquid Droplet Impingement2019

    • Author(s)
      Yuka Iga and Hirotoshi Sasaki
    • Organizer
      72nd Annual Meeting of the APS Division of Fluid Dynamics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 水中パルスレーザで発生させた気泡によるステンレス鋼への圧縮残留応力導入2019

    • Author(s)
      祖山均
    • Organizer
      ショットピーニング技術協会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 水中ファンジェットまわりのキャビテーションの観察2019

    • Author(s)
      祖山均
    • Organizer
      日本混相流学会 混相流シンポジウム2019
    • Related Report
      2019 Research-status Report
  • [Presentation] パルスレーザで発生させた気泡の崩壊衝撃力による機械的表面改質の可能性2019

    • Author(s)
      祖山均
    • Organizer
      日本混相流学会 混相流シンポジウム2019
    • Related Report
      2019 Research-status Report
  • [Presentation] 直接レーザ焼結法で作製したチタン合金Ti6Al4Vの表面改質による疲労強度向上2019

    • Author(s)
      祖山均
    • Organizer
      日本機械学会M&M2019材料力学カンファレンス
    • Related Report
      2019 Research-status Report
  • [Presentation] 流動キャビテーションにおける化学・物理現象とその応用2019

    • Author(s)
      祖山均
    • Organizer
      第28 回ソノケミストリー討論会プログラム
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] テッポウエビに倣うキャビテーションの発生機構の開発2019

    • Author(s)
      祖山均,田中麻友,滝口尚,山本松男
    • Organizer
      日本機械学会東北支部第 55 期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 流動キャビテーションによるセルロースの解繊における絞り部口径の影響2019

    • Author(s)
      小林真魚,祖山均
    • Organizer
      日本機械学会東北支部第 55 期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] アルコール水溶液を用いたキャビテーションの発光強度における濃度の影響2019

    • Author(s)
      保科哲,祖山均
    • Organizer
      日本機械学会東北支部第 55 期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 3次元積層造形したチタン合金Ti-6Al-4Vのキャビテーション損傷性2019

    • Author(s)
      佐々木裕章,祖山均
    • Organizer
      日本機械学会東北支部第 55 期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] チタン製合金Ti6Al4V製積層造形材の疲労特性における電子ビーム造形法と直接レーザ焼結法の比較2019

    • Author(s)
      祖山均
    • Organizer
      日本機械学会東北支部第 55 期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 水中レーザピーニングでステンレス鋼に導入した残留応力の分布2019

    • Author(s)
      祖山均
    • Organizer
      日本機械学会東北支部第 54 期総会・講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 電子ビーム積層造形したチタン合金の疲労寿命における機械的特性の影響2019

    • Author(s)
      大蔵侑也,祖山均
    • Organizer
      日本機械学会東北支部第 54 期総会・講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 種々の機械的表面改質によりステンレス鋼に導入したマクロ歪とミクロ歪の関係2019

    • Author(s)
      祖山均,笹井達希
    • Organizer
      日本機械学会東北支部第 54 期総会・講演会
    • Related Report
      2018 Research-status Report
  • [Remarks] 国際共同研究加速基金(国際共同研究強化(B))

    • URL

      http://www.mm.mech.tohoku.ac.jp/menu12/index6.html

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report 2018 Research-status Report
  • [Remarks] Cavitation Peening for AM Ti6Al4V

    • URL

      https://www.youtube.com/watch?v=Sogpxy5ip9I

    • Related Report
      2021 Annual Research Report
  • [Remarks] Vortex cavitation

    • URL

      https://youtu.be/qhA3dtpt_98

    • Related Report
      2020 Research-status Report
  • [Remarks] Cavitation Peening

    • URL

      https://youtu.be/BurRGrmOGQY

    • Related Report
      2020 Research-status Report 2019 Research-status Report
  • [Remarks] Cavitating jet

    • URL

      https://youtu.be/hezjXoGuP4c

    • Related Report
      2020 Research-status Report
  • [Remarks] 泡で金属を叩いて強くする

    • URL

      https://youtu.be/XKE6X-g8EI0

    • Related Report
      2019 Research-status Report
  • [Remarks] 泡で金属を叩いて強くする

    • URL

      https://youtu.be/BurRGrmOGQY

    • Related Report
      2018 Research-status Report
  • [Remarks] 金属製積層造形材の疲労強度を1.6倍に向上

    • URL

      https://www.tohoku.ac.jp/japanese/2019/02/award20190212-01.html

    • Related Report
      2018 Research-status Report
  • [Remarks] 泡による衝撃力を用いた圧縮残留応力の導入と砥粒による平滑化を併用

    • URL

      https://www.eng.tohoku.ac.jp/news/detail-,-id,1288.html

    • Related Report
      2018 Research-status Report

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Published: 2018-10-12   Modified: 2023-01-30  

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