Effect of Testing Temperature on Retained Austenite Stability of Cold Rolled CMnSi Steels Treated by Quenching and Partitioning Process

2012 ◽  
Vol 84 (3) ◽  
pp. 246-252 ◽  
Author(s):  
Weijun Feng ◽  
Zhibing Wu ◽  
Li Wang ◽  
John G. Speer
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.


2019 ◽  
Vol 42 (5) ◽  
pp. 1085-1099 ◽  
Author(s):  
Peter I. Christodoulou ◽  
Alexis T. Kermanidis ◽  
Gregory N. Haidemenopoulos ◽  
Daniel Krizan ◽  
Kyriaki Polychronopoulou

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

2020 ◽  
Vol 835 ◽  
pp. 347-352
Author(s):  
Ahmed El-Sherbiny ◽  
Mohamed Kamal El-Fawkhry ◽  
Ahmed Y. Shash ◽  
Tarek M. El-Hossainy ◽  
Ayman Mohamed Fathy ◽  
...  

Despite that the conventional CSiMn TRIP steel has a promissing mechanical attributes, it has a limitations on the galvanizability of such grades of steel due to Silicon. Thus, aluminum as a strong candidate for substituting silicon has been introduced in this study accompanied by vanadium as a microalloying element. Microstructure of the studied steel was observed by using OM, and SEM. X-ray diffraction analysis, and tent-etching technique carried out on the studied steel to identify the fractions of the retained Austenite after thermal mechanical process, as well as its morphology. In addition, the mechanical properties in term of strength, ductility, strain hardening, and the rate of strain hardening were studied to define the influenced parameters throughout this alteration. The results refer to the possibility of complete replacement of silicon in TRIP steel with aluminum at the presence of vanadium as a micro alloying element.


Sign in / Sign up

Export Citation Format

Share Document