Grain refinement processes for superplastic forming of AISI 304 and 304L austenitic stainless steels

被引：14
|
作者：
Yagodzinskyy, Y
Pimenoff, J
Tarasenko, O
Romu, I
Nenonen, P
Hänninen, H
机构：
[1] Helsinki Univ Technol, Lab Engn Mat, FIN-02015 Helsinki, Finland
[2] VTT Mfg Technol, FIN-02044 Espoo, Finland
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2004年 / 20卷 / 07期
关键词：
304 stainless steel; superplastic forming; reversion from alpha '-martensite to austenite; hot tensile tests; internal friction;
D O I：
10.1179/026708304225019678
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Elongation to fracture values higher than 300% were obtained for cold rolled AISI 304 type steel grades in hot tensile tests. The effects of heating rate and carbon content on the elongation of the steels studied are discussed based on internal friction measurements and TEM observations. A slow heating rate to the test temperature and high carbon content of the steel led to a fine and equiaxial grain structure of the steels.
引用
收藏
页码：925 / 929
页数：5
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