Surface profile and microstructure of laser peened Ti-6Al-4V

稀有金属（英文版）, 2012, 31(5): 430-433. doi: 10.1007/s12598-012-0533-4

ZOU Shikun ^1, , GONG Shuili ^2, , GUO Enming ^3,

1.College of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ;Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China

2.College of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ;Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China

3.College of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Surface profile and microstructure of laser peened Ti-6Al-4V

ZOU Shikun ^1, , GONG Shuili ^2, , GUO Enming ^3,

1.College of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ;Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China

2.College of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ;Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China

3.College of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Keywords： laser peening

The surface profile of laser peening with square spots was compared with that of circle spots,and the microstructure of laser peened titanium alloy Ti-6Al-4V in the center of a square spot and at the edge of the square spot was investigated in this paper.The results show that a smaller size crystal is produced at the edge of square spots because the shearing strain produces nanoscale crystals in laser peening titanium alloy Ti-6Al-4V.

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