An analysis of microstructure and mechanical properties of ferritic stainless steel 430 during cold rolling and subsequent annealing

被引:7
|
作者
Sun, Xiaoyu [1 ]
Ma, Linan [2 ]
Li, Jinghui [3 ]
Zhang, Mingya [3 ]
Ma, Xiaoguang [4 ,5 ]
机构
[1] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China
[2] Taiyuan Univ Sci & Technol, Sch Mech Engn, Taiyuan 030024, Peoples R China
[3] Anhui Univ Technol, Sch Met Engn, Maanshan 243002, Peoples R China
[4] Taiyuan Univ Technol, Coll Mech & Vehicle Engn, Taiyuan 030024, Peoples R China
[5] Minist Educ, Engn Res Ctr Adv Met Composites Forming Technol &, Taiyuan 030024, Peoples R China
基金
中国国家自然科学基金;
关键词
Annealing; Microstructure; Mechanical properties; Ferritic stainless steel; BOUNDARY-CHARACTER-DISTRIBUTION; TEXTURE; DEFORMATION; BEHAVIOR; TEMPERATURE; TENSILE; RECRYSTALLIZATION; REDUCTION; EVOLUTION; BAND;
D O I
10.1007/s00170-022-10206-2
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Systematic study on the microstructural evolution and mechanical properties of ferritic stainless steel (FSS) 430 with different annealing processes was carried out in the present work. The results show that microstructural refinement can be achieved by optimization of annealing processes, improving elongation, yield strength, and tensile strength of FSS 430. An optimal annealing temperature of 950 celcius is found with better homogeneity and enhanced mechanical properties among the cold-rolled and annealed FSSs. During annealing processes, the fraction of high-angle grain boundaries of FSS 430 annealed at 950 celcius is found to be the highest, indicating that a homogeneous microstructure with high recrystallization rate is formed inside the FSS 430 strips. In addition, high fraction of the hard grains (SF < 0.4) and low fraction of the soft grains are found inside FSS 430 annealed at 950 celcius, improving the plasticity of material. Overall, the optimization of annealing processes benefits the microstructural refinement of FSS and thereby improving the mechanical properties of materials.
引用
收藏
页码:1159 / 1173
页数:15
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