Residual stresses of surface nanocrystalline material by moire interferometry and hole-drilling method

Min Ya; Fulong Dai; Yongming Xing; Jian Lu

doi:10.1117/12.468853

29 May 2002 Residual stresses of surface nanocrystalline material by moire interferometry and hole-drilling method

Min Ya, Fulong Dai, Yongming Xing, Jian Lu

Proceedings Volume 4537, Third International Conference on Experimental Mechanics; (2002) https://doi.org/10.1117/12.468853
Event: Third International Conference on Experimental Mechanics, 2002, Beijing, China

Abstract

The surface of metal structure can be transmitted into nanocrystalline by means of supersonic shot-peening. Residual stresses of stainless steel 316L caused by surface nanocrystalline were studied by a combined method of moire interferometry and hole-drilling. Residual stresses of different specimens with nanocrystalline layer and plastic deformation layer removed were also studied. The experimental result show that nanocrystalline layer and plastic deformation layer are main parts to remain high residual stresses, and to enhance the mechanic behavior of materials.

Citation Download Citation

Min Ya, Fulong Dai, Yongming Xing, and Jian Lu "Residual stresses of surface nanocrystalline material by moire interferometry and hole-drilling method", Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); https://doi.org/10.1117/12.468853

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