Katsuji Tosha
,
Jian Lu
,
Bruno Guelorget
材料科学技术（英文）
The effect of shot peening on surface integrity was described. After shot peening was performed for carbon steel under several conditions with steel shot, peened materials were heat-treated at various temperatures and times (100~600℃, 15~240 min), and then hardness, half width and surface residual stress were measured. The following results are obtained: (1) non-affected layer induces compressive residual stresses on the peened surface and surface layer, (2) hardness increases after heating at 200~400℃, but decreases in case of 600℃, (3) compressive residual stresses decrease after all heat treatments, (4) microstructure may be recovered by heat treatment at low temperature
关键词:
Shotpeening
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