Compositional dependence of magnetic properties on thermally sensitized austenitic stainless steels

被引：12
|
作者：
Kamada, Y. [1 ]
Mikami, T.
Takahashi, S.
Kikuchi, H.
Kobayashi, S.
Ara, K.
机构：
[1] Iwate Univ, Fac Engn, NDE, Morioka, Iwate 0208551, Japan
[2] Iwate Univ, Fac Engn, Ctr Sci Res, Morioka, Iwate 0208551, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
关键词：
martensitic transition; NDE; sensitization; austenitic stainless steel; magnetic force microscopy;
D O I：
10.1016/j.jmmm.2006.11.074
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic properties on thermally sensitized austenitic stainless steels with different chemical composition were investigated. Ferromagnetic martensite phase appeared along grain boundary(GB) by thermal sensitization. As value of Ni equivalent increased and carbon content decreased, the ferromagnetic martensite decreased. The former phenomenon is related to structural stability of austenitic phase, while the latter to shortage of carbon for carbide formation. These behaviors can be explained consistently by considering the change of martensitic transition temperature due to Cr depletion at the GB. (C) 2006 Elsevier B. V. All rights reserved.
引用
收藏
页码：2856 / 2858
页数：3
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