Aging Behaviour in Hot-Rolled Low Carbon Steels

被引：0
|
作者：
Chen, J. K. [1 ]
机构：
[1] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, Taipei 10608, Taiwan
来源：
STEEL RESEARCH INTERNATIONAL | 2008年 / 79卷 / 09期
关键词：
Luders strain; aging index; hot-rolled low carbon steels; Cottrell atmospheres; accelerated aging;
D O I：
10.1002/srin.200806187
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Luders strain and aging index were employed to characterize the aging properties of hot rolled low carbon steels during production. The Luders strain was found to increase with aging time while the aging index decreased. It is interpreted that the aging index represents the susceptibility of steels to aging, while the Luders strain measures the effects of carbon and nitrogen atmosphere pinning on dislocations. By comparing accelerated aging with room temperature aging behaviours of low carbon steels for up to two years, an algorithm deriving the activation energy of solute carbon and nitrogen migration from aging property measurements was proposed. The equation derived for accelerated aging of hot-rolled low carbon steels investigated was in reasonable agreement with that reported in the literature.
引用
收藏
页码：708 / 712
页数：5
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