Low carbon steel with nanostructured surface layer induced by high-energy shot peening

被引:241
作者
Liu, G [1 ]
Wang, SC
Lou, XF
Lu, J
Lu, K
机构
[1] Chinese Acad Sci, Inst Met Res, State Key Lab RSA, Shenyang 110015, Peoples R China
[2] Univ Technol Troyes, LASMIS, F-10000 Troyes, France
基金
中国国家自然科学基金;
关键词
steel; high-energy shot peening; surface nanostructure; property;
D O I
10.1016/S1359-6462(01)00738-2
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Nanostructured surface layer can be successively obtained in a low carbon steel plate by means of the high-energy shot peening (HESP) technique. The average grain size in the top surface layer can be as small as a few nanometers, and gradually increases with the distance from the surface. The thickness of the nanostructured surface layer is not less than 20 μm. The yield strength was found to be significantly enhanced without considerable degradation of ductility and toughness. The strengthening of material after the HESP treatment can be attributed to work-hardening and formation of surface nanostructure.
引用
收藏
页码:1791 / 1795
页数:5
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