Nanoscopic measurement of local plastic deformation for a tempered martensitic steel by atomic force microscopy

被引：11
|
作者：
Hayakawa, M [1 ]
Matsuoka, S [1 ]
Furuya, Y [1 ]
机构：
[1] Natl Inst Mat Sci, MITS, Tsukuba, Ibaraki 3050047, Japan
来源：
MATERIALS LETTERS | 2003年 / 57卷 / 20期
关键词：
atomic force microscopy; deformation; fracture; tempered martensite; block; prior austenite grain boundary;
D O I：
10.1016/S0167-577X(02)01427-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A technique for analyzing the local plastic deformation at the surface of a tensile test specimen was developed by atomic force microscopy (AFM). When tensile plastic strains of 2 x 10(-3) 4 x 10(-3) and 6 x 10(-3) were applied to the specimen of a tempered martensitic steel, surface steps with 5-39 nm were observed in locally deformed blocks near prior austenite (gamma) grain boundaries. (C) 2003 Elsevier Science B.V All rights reserved.
引用
收藏
页码：3037 / 3042
页数：6
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