Effect of Stacking Fault Energy on Cryo Deformation Behavior of Austenitic Stainless Steels

被引：5
|
作者：
Kumar, G. Venkata Sarath [1 ,2 ]
Sivaprasad, K. [1 ]
机构：
[1] Natl Inst Technol, Dept Met & Mat Engn, Adv Mat Proc Lab, Tiruchirappalli 620015, Tamil Nadu, India
[2] Ashok Leyland Ltd, Tech Ctr, Adv Engn, Chennai 600103, Tamil Nadu, India
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2024年 / 33卷 / 06期
关键词：
cryorolling; deformation induced martensite; nanotwinning; SFE; ultra fine grains; MECHANICAL-PROPERTIES; MARTENSITIC-TRANSFORMATION; MICROSTRUCTURE; TEMPERATURE; DEPENDENCE;
D O I：
10.1007/s11665-023-08208-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cryorolling followed by flash annealing is one of the most promising and viable methods for modifying the mechanical properties of face centered cubic alloys. Comparative mechanical property and deformation behavior of low nickel 304 stainless steel and high nickel 310 stainless steel are reported here. Microstructural analysis has been performed to investigate the strengthening mechanisms of both steels with the change in stacking fault energy (SFE). Low SFE resulted in the formation of deformation-induced martensite and high SFE resulted in the formation of nanotwins. The dislocation density changed upon rolling, which gets recovered after flash annealing. Deformation Induced martensite formed during cryorolling is partially converted to austenite upon flash annealing in 304 stainless steel. Nano grains and bimodal structure is observed in 310 stainless steel after flash annealing.
引用
收藏
页码：2643 / 2652
页数：10
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