Nanohardness measurement of high-purity Fe-C martensite

被引:115
作者
Ohmura, T [1 ]
Tsuzaki, K [1 ]
Matsuoka, S [1 ]
机构
[1] Natl Inst Mat Sci, Mat Engn Lab, Tsukuba, Ibaraki 3050047, Japan
关键词
steels; martensite; microstructure; hardness testing; nanoindentation;
D O I
10.1016/S1359-6462(01)01121-6
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Nanohardness was measured for Fe-C binary as-quenched martensitic steels and for four bcc single crystals using the nanoindentation technique. The ratio of the nanohardness to the micro Vickers hardness of the Fe-C martensite was much smaller than those of the single crystals, indicating a significant effect of grain size on the strength of the Fe-C martensite. (C) 2001 Acta Materialia. Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:889 / 894
页数:6
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