EFFECTS OF ALLOYING ELEMENTS AND THERMOMECHANICAL TREATMENTS ON MECHANICAL AND MAGNETIC-PROPERTIES OF CR-NI AUSTENITIC STAINLESS-STEEL

被引：25

作者：

TAKEMOTO, T

MURATA, Y

TANAKA, T

机构：

[1] Steel R & D Laboratories, Nisshin Steel Co., Ltd., Shin-nanyo, Yamaguchi-ken 746, Tonda

来源：

ISIJ INTERNATIONAL | 1990年 / 30卷 / 08期

关键词：

Cr-Ni austenitic stainless steel; hardness; N; nonmagnetism; permeability; Si; strain age hardening; strain induced martensite;

D O I：

10.2355/isijinternational.30.608

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Effects of alloying elements and thermomechanical treatment on mechanical and magnetic properties of Cr-Ni austenitic stainless steel have been investigated. N and Si increase hardness for annealed and cold rolled conditions. Aging treatment, following cold rolling, further increases hardness. Specially, Si exerts a substantial increase in hardness by aging treatment. On the other hand, Ni,Mn,Cr and N increase γ stability, while Si lowers γ stability against formation of strain induced martensite (α'). Nonmagnetism can be maintained by controlling γ stability, depending upon a degree of cold rolling. Based on the results, high strength nonmagnetic stainless steel can be obtained for Si and N containing Cr-Ni stainless steel with sufficiently high γ stability. Effects of Si on strain age hardening and α' transformation behaviors are discussed. © 1990, The Iron and Steel Institute of Japan. All rights reserved.

引用

页码：608 / 614

页数：7

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