Effect of retained austenite stability on cyclic deformation behavior of low‐alloy transformation‐induced plasticity steels

2019 ◽  
Vol 42 (5) ◽  
pp. 1085-1099 ◽  
Author(s):  
Peter I. Christodoulou ◽  
Alexis T. Kermanidis ◽  
Gregory N. Haidemenopoulos ◽  
Daniel Krizan ◽  
Kyriaki Polychronopoulou
2006 ◽  
Vol 12 (1) ◽  
pp. 13-19 ◽  
Author(s):  
I. D. Choi ◽  
D. M. Kim ◽  
S. J. Kim ◽  
D. M. Bruce ◽  
D. K. Matlock ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7132
Author(s):  
Chunquan Liu ◽  
Fen Xiong ◽  
Guanni Liu ◽  
Yong Wang ◽  
Yuxin Cao ◽  
...  

This study investigated the austenite stability and deformation behavior of cyclic quenching-austenite reverse transformation processed Fe-0.25C-3.98Mn-1.22Al-0.20Si-0.19Mo-0.03Nb medium Mn steel. A number of findings were obtained. Most importantly, the extent of the TRIP effect was mainly determined by an appropriately retained austenite stability rather than its content. Simultaneously, chemical elements were the key factors affecting austenite stability, of which Mn had the greatest impact, while the difference of retained austenite grain size and Mn content resulted in different degrees of retained austenite stability. Additionally, there were still large amounts of strip and granular-retained austenite shown in the microstructure of the CQ3-ART sample after tensile fracture, revealing that the excessively stable, retained austenite inhibited the generation of an extensive TRIP effect.


2014 ◽  
Vol 1004-1005 ◽  
pp. 198-202 ◽  
Author(s):  
Kai Kai Wang ◽  
Zhun Li Tan ◽  
Gu Hui Gao ◽  
Xiao Lu Gui ◽  
Bing Zhe Bai

Retained austenite has an important effect on strength and toughness of 20Mn2SiCrMo bainitic rail steel. In this work, the stability of retained austenite and mechanical properties have been studied. The results show that impact toughness of experimental steel has close relationship with the stability of retained austenite. When tempered at lower than 350°C, retained austenite owns good thermal stability, corresponding to relatively high impact toughness.


Wear ◽  
2019 ◽  
Vol 428-429 ◽  
pp. 127-136 ◽  
Author(s):  
Binggang Liu ◽  
Wei Li ◽  
Xianwen Lu ◽  
Xiaoshuai Jia ◽  
Xuejun Jin

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