Improvement of Corrosion Resistance of Magnesium Alloys by Controlling of Microstructure and Electrochemical Homogeneity

2010 Fiscal Year Final Research Report

• Project/Area Number: 20686050
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Material processing/treatments
• Research Institution: Kumamoto University
• Principal Investigator: YAMASAKI Michiaki Kumamoto University, 大学院・自然科学研究科, 准教授 (50343885)
• Project Period (FY): 2008 – 2010
• Keywords: マグネシウム / 加工熱処理 / 急速凝固 / 組織制御 / 腐食防食 / 長周期積層構造

Research Abstract

Highly corrosion-resistant Mg-Zn-rare earth (RE) alloys with long period stacking ordered phase have been developed by microstructure control through the rapid solidification and thermo-mechanical treatment. Enhancement of microstructural and electrochemical homogeneities in the Mg-Zn-RE alloys by rapid solidification techniques results in the passivity of substrate materials.

Research Products

• [Journal Article] Effect of Multimodal Microstructure Evolution on Mechanical Properties of Mg-Zn-Y Extruded Alloy (2011)
  • Author(s): M.Yamasaki, K.Hashimoto, K.Hagihara, Y.Kawamura
  • Journal Title: Acta Materialia Vol.59, Issue.9 Pages: 3646-3658
  • Peer Reviewed
• [Journal Article] Corrosion and Passivation Behavior of Mg-Zn-Y-Al Alloys Prepared by Cooling Rate-controlled Solidification (2011)
  • Author(s): M.Yamasaki, S.Izumi, Y.Kawamura, H.Habazaki
  • Journal Title: Applied Surface Science Vol.257, Issue 19 Pages: 8258-8267
  • Peer Reviewed
• [Journal Article] 長周期積層構造相を含むマグネシウム合金押出材における組織と不均一変形挙動熱処理 (2010)
  • Author(s): 森川龍哉, 広谷潤, 三谷祐貴, 東田賢二, 山崎倫昭, 河村能人
  • Journal Title: 熱処理 Vol.50, No.3 Pages: 200-204
• [Journal Article] Tensile property and cold formability of a Mg96Zn2Y2 alloy sheet with a long-period ordered phase (2010)
  • Author(s): T.Itoi, T.Inazawa, Y.Kuroda, M.Yamasaki, Y.Kawamura, M.Hirohashi
  • Journal Title: Materials Letters Vol.64 Pages: 2277-2280
  • Peer Reviewed
• [Journal Article] Plastic deformation behavior of Mg89Zn4Y7extruded alloy composed of long-period stacking ordered phase (2010)
  • Author(s): K.Hagihara, A.Kinoshita, Y.Sugino, M.Yamasaki, Y.Kawamura, H.Y.Yasuda, Y.Umakoshi
  • Journal Title: Intermetallics Vol.18 Pages: 1079-1085
  • Peer Reviewed
• [Journal Article] Effect of Long-period Stacking Ordered Phase on Mechanical Properties of Mg97Zn1Y2 Extruded Alloy (2010)
  • Author(s): K.Hagihara, A.Kinoshita, Y.Sugino, M.Yamasaki, Y.Kawamura, H.Y.Yasuda, Y.Umakoshi
  • Journal Title: Acta Materialia Vol.58, No.19 Pages: 6282-6293
  • Peer Reviewed
• [Journal Article] Improvement of Corrosion Resistance of Extruded Mg-Zn-Y Mg/LPSO Two-Phase Alloys by Fourth Element Addition (2010)
  • Author(s): Izumi, M.Yamasaki, Y.Kawamura
  • Journal Title: Materials Science Forum Vol.654-656 Pages: 767-770
  • Peer Reviewed
• [Journal Article] Multimodal Microstructure Evolution in Wrought Mg-Zn-Y Alloys with High Strength and Increased Ductility (2010)
  • Author(s): M.Yamasaki, K.Hashimoto, K.Hagihara, Y.Kawamura
  • Journal Title: Materials Science Forum Vol.654-656 Pages: 615-618
  • Peer Reviewed
• [Journal Article] Temperature Dependence of Compressive Deformation Behavior of Mg89Zn4Y7 Extruded LPSO-Phase Alloys (2010)
  • Author(s): K.Hagihara, A.Kinoshita, Y.Sugino, M.Yamasaki, Y.Kawamura, H.Y.Yasuda, Y.Umakoshi
  • Journal Title: Materials Science Forum Vol.654-656 Pages: 607-610
  • Peer Reviewed
• [Journal Article] Effect of Extrusion Parameters on Mechanical Properties of Mg97Zn1Y2 Alloys at Room and Elevated Temperatures (2010)
  • Author(s): M.Hirano, M.Yamasaki, K.Hagihara, K.Higashida, Y.Kawamura
  • Journal Title: Materials Transactions Vol.51, No.9 Pages: 1640-1647
  • Peer Reviewed
• [Journal Article] Plastic Deformation Behavior of Mg89Zn4Y7 Extruded Alloy Composed of Long-period Stacking Ordered Phase (2010)
  • Author(s): K.Hagihara, A.Kinoshita, Y.Sugino, M.Yamasaki, Y.Kawamura, H.Y.Yasuda, Y.Umakoshi
  • Journal Title: Intermetallics Vol.18, Pages: 1079-1085
  • Peer Reviewed
• [Journal Article] Plastic Deformation Behavior of Mg97Zn1Y2 Extruded Alloys (2010)
  • Author(s): K.Hagihara, A.Kinoshita, Y.Sugino, M.Yamasaki, Y.Kawamura, H.Y.Yasuda, Y.Umakoshi
  • Journal Title: Trans.Nonferrous Met.Soc.China Vol.20 Pages: 1259-1268
  • Peer Reviewed
• [Journal Article] Relation between the Microstructure and the Plastic Deformation Behavior in Mg12ZnY with LSPO Structure (2009)
  • Author(s): K.Hagihara, A.Kinoshita, Y.Sugino, N.Yokotani, M.Yamasaki, Y.Kawamura, Y.Umakoshi
  • Journal Title: Magnesium Technology Pages: 477-482
  • Peer Reviewed
• [Journal Article] Role of the Microstructure on the Deformation Behavior in Mg12ZnY with a Long-Period Stacking Ordered Structure (2009)
  • Author(s): K.Hagihara, N.Yokotani, A.Kinoshita, Y.Sugino, H.Yamamoto, M.Yamasaki, Y.Kawamura, Y.Umakoshi
  • Journal Title: Materials Research Society Symposium Proceeding Vol.1128
  • Peer Reviewed
• [Journal Article] Characterization of Precipitates in Mg-Sm Alloy Aged at 200℃, Studied by High-Resolution Transmission Electron Microscopy and High-Angle Annular Detector Dark-Field Scanning Transmission Electron Microscopy (2009)
  • Author(s): M.Nishijima, K.Hiraga, M.Yamasaki, Y.Kawamura
  • Journal Title: Materials Transactions Vol.50, No.7 Pages: 1747-1752
  • Peer Reviewed
• [Journal Article] Development of High-Strength and Highly Corrosion-Resistant Bulk Nanocrystalline Mg-Zn-Y Alloys with Long Period Stacking Ordered Phase (2009)
  • Author(s): M.Yamasaki, S.Izumi, Y.Kawamura
  • Journal Title: ECS Transactions Vol.16, Issue 32 Pages: 81-88
  • Peer Reviewed
• [Journal Article] Thermal Diffusivity and Thermal Conductivity of Mg-Zn-Rare Earth Element Alloys with Long Period Stacking Ordered Phase (2009)
  • Author(s): M.Yamasaki, Y.Kawamura
  • Journal Title: Scripta Materialia Vol.60 Pages: 264-267
  • Peer Reviewed
• [Journal Article] Forgeability and Flow Stress of Mg-Zn-Y Alloys with Long Period Stacking Ordered Structure at Elevated Temperatures (2009)
  • Author(s): R.Matsumoto, M.Yamasaki, M.Otsu, Y.Kawamura
  • Journal Title: Materials Transactions Vol.50, No.4 Pages: 841-846
  • Peer Reviewed
• [Journal Article] Relation between Corrosion Behavior and Microstructure of Mg-Zn-Y Alloys Prepared by Rapid Solidification at Various Cooling Rates (2009)
  • Author(s): S.Izumi, M.Yamasaki, Y.Kawamura
  • Journal Title: Corrosion Science Vol.51 Pages: 395-402
  • Peer Reviewed
• [Journal Article] Influence of Cooling Rate on Corrosion Resistance of Rapidly Solidified Mg-Zn-Y Alloys with a Long Period Stacking Ordered Phase (2009)
  • Author(s): S.Izumi, M.Yamasaki, Y.Kawamura
  • Journal Title: ECS Transactions Vol.16, Issue 32 Pages: 65-72
  • Peer Reviewed
• [Journal Article] Microstructure Evolutions of Rapidly-Solidified and Conventionally-Cast Mg97Zn1Y2 Alloys (2008)
  • Author(s): Ono, E.Abe, T.Itoi, M.Hirohashi, M.Yamasaki, Y.Kawamura
  • Journal Title: Materials Transactions Vol.49, No.5 Pages: 990-994
  • Peer Reviewed
• [Presentation] Multimodal microstructure evolution of extruded Mg-Zn-Y alloys with high strength and increased ductilitiy (2010)
  • Author(s): M.Yamasaki, K.Hagihara, Y.Kawamura
  • Organizer: The 5th Pan-Yellow Sea Rim International Symposium on Magnesium Alloys, MOTC Convention Center
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2010-11-18
• [Presentation] Corrosion and passivation behavior of Mg-Zn-Y two-phase alloys prepared by cooling rate-controlled solidification technique (2010)
  • Author(s): M.Yamasaki, S.Izumi, Y.Kawamura
  • Organizer: EMRS 2010 Fall Meeting : 10th international symp.on electrochemical/chemical reactivity of metastable materials
  • Place of Presentation: Warsaw Univ.of Tech., Warsaw, Poland
  • Year and Date: 2010-09-13
• [Presentation] Corrosion and Passivation Mechanisms of alpha/LPSO Two-phase Mg Alloys Prepared by Cooling Rate-controlled Solidification Technique (2009)
  • Author(s): M.Yamasaki, S.Izumi, Y.Kawamura
  • Organizer: The 4th Pan-Yellow Sea Rim Symposium on Mg Alloys
  • Place of Presentation: Kumamoto University, Japan
  • Year and Date: 20091112-20091113
• [Presentation] 長周期積層構造相を有するマグネシウム合金の機械的性質と腐食挙動 (2009)
  • Author(s): 山崎倫昭
  • Organizer: 2009年北海道夏期セミナー(表面技術協会、腐食防食協会)
  • Place of Presentation: JSTプラザ北海道, 札幌市
  • Year and Date: 2009-07-30
• [Presentation] Development of High-strength and Highly Corrosion-resistant Bulk Nanocrystalline Mg-Zn-Y Alloys with Long Period Stacking Ordered Phase (2008)
  • Author(s): M.Yamasaki, S.Izumi, Y.Kawamura
  • Organizer: Pacific Rim Meeting on Electrochemical and Solid-State Science (PRiME 2008), 214th Meeting of ECS
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2008-10-16
• [Remarks] ホームページ等
  • URL: http://www.msre.kumamoto-u.ac.jp/~kankyo/index-j.htm
• [Patent(Industrial Property Rights)] マグネシウム合金およびその製造方法 (2010)
  • Inventor(s): 山崎倫昭, 河村能人
  • Industrial Property Rights Holder: 熊本大学
  • Industrial Property Number: 特許,特願2010-066476
  • Filing Date: 2010-03-23
• [Patent(Industrial Property Rights)] マグネシウム合金およびその製造方法 (2010)
  • Inventor(s): 山崎倫昭, 河村能人
  • Industrial Property Rights Holder: 熊本大学
  • Industrial Property Number: 特許,特願2010-066477
  • Filing Date: 2010-03-23
• [Patent(Industrial Property Rights)] マグネシウム合金およびその製造方法 (2010)
  • Inventor(s): 山崎倫昭, 河村能人
  • Industrial Property Rights Holder: 熊本大学
  • Industrial Property Number: 特許,特願2010-066478
  • Filing Date: 2010-03-23
• [Patent(Industrial Property Rights)] 高強度高靭性マグネシウム合金及びその製造方法 (2010)
  • Inventor(s): 河村能人、山崎倫昭
  • Industrial Property Rights Holder: 河村能人
  • Industrial Property Number: 外国特許(中国),ZL200480034689.4
  • Filing Date: 2010-07-07
• [Patent(Industrial Property Rights)] 高強度高靭性マグネシウム合金及びその製造方法 (2010)
  • Inventor(s): 河村能人、山崎倫昭
  • Industrial Property Rights Holder: 河村能人
  • Industrial Property Number: 外国特許(中国),ZL200480034690.7
  • Filing Date: 2010-04-28
• [Patent(Industrial Property Rights)] マグネシウム合金およびその製造方法 (2009)
  • Inventor(s): 山崎倫昭, 河村能人
  • Industrial Property Rights Holder: 熊本大学
  • Industrial Property Number: 特許,PCT/JP2009/066370
  • Filing Date: 2009-09-18
• [Patent(Industrial Property Rights)] マグネシウム合金材およびその製造方法 (2009)
  • Inventor(s): 中田守, 山田雄一, 板倉浩二, 河村能人, 山崎倫昭
  • Industrial Property Rights Holder: 株式会社神戸製鋼所, 日産自動車株式会社, 熊本大学
  • Industrial Property Number: 特許,PCT/JP2008/067356
  • Filing Date: 2009-09-18
• [Patent(Industrial Property Rights)] 鋳造物及びマグネシウム合金の製造方法 (2008)
  • Inventor(s): 河村能人、山崎倫昭
  • Industrial Property Rights Holder: 河村能人
  • Industrial Property Number: 特許,特許第4139841号
  • Filing Date: 2008-06-13