New and controllable method for creating high density lattice defects using laser shock pulse
Project/Area Number |
21560759
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Material processing/treatments
|
Research Institution | The Wakasa Wan Energy Research Center |
Principal Investigator |
KOBAYASHI Kojiro 財団法人若狭湾エネルギー研究センター, 所長 (70026277)
|
Co-Investigator(Kenkyū-buntansha) |
SANO Tomokazu 大阪大学, 大学院・工学研究科, 准教授 (30314371)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | レーザー衝撃 / 塑性加工 / 衝撃塑性 / アルミニウム材料 / フェムト秒レーザー / レーザー駆動衝撃波 / 純アルミニウム / 転位 / 透過電子顕微鏡 / 電子線後方散乱回折 / 高ひずみ速度塑性変形 / 高密度格子欠陥 / 純鉄 / 加工硬化 / 格子歪み / 格子欠陥 / X線回折 / ナノインデンテーション / レーザー衝撃波 / 塑性変形 |
Research Abstract |
The purpose of this study is to establish the laser shock processing method as a new technique for the plastic deformation process. We found that the femtosecond laser-driven shock compression forms high density of dislocations in solid materials. We suggest that the high density of dislocations is created due to the high-strain-rate plastic deformation and rapidly quenching induced by the femtosecond laser-driven shock wave.
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Report
(4 results)
Research Products
(43 results)