Effect of two-step cold rolling and annealing on texture, grain boundary character distribution and r-value of Nb plus Ti stabilized ferritic stainless steel

被引：39
|
作者：
Yan, Haitao [1 ,2 ]
Bi, Hongyun [2 ]
Li, Xin [2 ]
Xu, Zhou [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Key Lab High Temp Mat & Tests, Minist Educ, Shanghai 200030, Peoples R China
[2] Shanghai Baosteel Res Inst, Shanghai 200431, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2009年 / 60卷 / 01期
关键词：
Ferritic stainless steel; Two-step cold rolling and annealing; Microstructure; Texture; Grain boundaries; RECRYSTALLIZATION; MICROSTRUCTURE; NIOBIUM;
D O I：
10.1016/j.matchar.2008.05.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to improve the r-value of ferritic stainless steel, the Nb + Ti stabilized ferritic stainless steel is subjected to two-step cold rolling and annealing treatment. The results show that two-step cold rolling and annealing could improve the uniformity of grain size and increase the fraction of low-angel grain boundaries and coincidence site lattice boundaries, especially Sigma 3 and Sigma 13b. The uniform and high density texture of the two-step specimens is associated with the uniform grain size distribution, low-angel grain boundaries and coincidence site lattice boundaries, which will lead to the increase of the average r-value. (C) 2008 Elsevier Inc. All rights reserved.
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收藏
页码：65 / 68
页数：4
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