The effect of retained austenite stability on high speed deformation behavior of TRIP steels

2006 ◽  
Vol 12 (1) ◽  
pp. 13-19 ◽  
Author(s):  
I. D. Choi ◽  
D. M. Kim ◽  
S. J. Kim ◽  
D. M. Bruce ◽  
D. K. Matlock ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
Retained Austenite ◽  
High Speed ◽  
Trip Steels ◽  
Austenite Stability ◽  
Retained Austenite Stability ◽  
High Speed Deformation

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
Keyword(s):  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Retained Austenite ◽  
Transformation Induced Plasticity ◽  
Austenite Stability ◽  
Retained Austenite Stability

Effect of Retained Austenite Stability on Mechanical Properties of 590MPa Grade TRIP Sheet Steels

2010 ◽  
Vol 638-642 ◽  
pp. 3374-3379 ◽  
Author(s):  
Hiroshi Matsuda ◽  
Hisata Noro ◽  
Yasunobu Nagataki ◽  
Yoshihiro Hosoya
Keyword(s):  
Mechanical Properties ◽  
Carbon Content ◽  
Retained Austenite ◽  
High Strain ◽  
Sheet Steels ◽  
Trip Steels ◽  
Austenite Stability ◽  
Retained Austenite Stability ◽  
The Stability ◽  
High Work

Industrial low alloy TRIP sheet steels contain blocky and lath-shaped retained austenite. In the present study, transformation behaviour of blocky and lath-shaped retained austenite during straining was investigated to clarify its effect on mechanical properties. Two types of TRIP steels containing almost the same amount but the different morphology of retained austenite were used. A steel containing large amount of lath-shaped retained austenite exhibits superior ductility, and sustains high work-hardenability in a high strain region. On the contrast, a steel containing large amount of blocky retained austenite exhibits low ductility. 　The work-hardenability increased steeply to the maximum at a low strain region, and then reduced in a high strain region. The stability of the blocky austenite has been found to be poor with respected to martensite transformation. The lath-shaped retained austenite remains until a high strain region whereas the blocky retained austenite transformed into martensite in a low strain region. Carbon content was higher in the lath-shaped retained austenite than in the blocky retained austenite. Stability of retained austenite is, however, inexplicable only by the carbon content, and would be affected by the different morphology and the resulting restraint conditions.

Low-alloy TRIP steels: a correlation between mechanical properties and the retained austenite stability

2002 ◽  
Vol 73 (6-7) ◽  
pp. 249-252 ◽  
Author(s):  
Apostolos N. Vasilakos ◽  
Joachim Ohlert ◽  
Katerina Giasla ◽  
Gregory N. Haidemenopoulos ◽  
Wolfgang Bleck
Keyword(s):  
Mechanical Properties ◽  
Retained Austenite ◽  
Trip Steels ◽  
Austenite Stability ◽  
Retained Austenite Stability

scholarly journals Austenite Stability and Deformation Behavior in Medium Mn Steel Processed by Cyclic Quenching ART Heat Treatment

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7132
Author(s):  
Chunquan Liu ◽  
Fen Xiong ◽  
Guanni Liu ◽  
Yong Wang ◽  
Yuxin Cao ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
Retained Austenite ◽  
Tensile Fracture ◽  
Trip Effect ◽  
Austenite Grain Size ◽  
Austenite Stability ◽  
Retained Austenite Stability ◽  
Medium Mn Steel ◽  
Cyclic Quenching ◽  
Mn Steel

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.

The High-Speed Deformation Behavior of High-Strength Lightweight Al-Li Alloy Sheets

2021 ◽  
pp. 1231-1243
Author(s):  
Ali Abd El-Aty ◽  
Shi-Hong Zhang ◽  
Xunzhong Guo ◽  
Yong Xu ◽  
Ma Yan ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
High Speed ◽  
High Strength ◽  
High Speed Deformation

Effect of Retained Austenite Stability on Mechanical Properties of Bainitic Rail Steel

2014 ◽  
Vol 1004-1005 ◽  
pp. 198-202 ◽  
Author(s):  
Kai Kai Wang ◽  
Zhun Li Tan ◽  
Gu Hui Gao ◽  
Xiao Lu Gui ◽  
Bing Zhe Bai
Keyword(s):  
Mechanical Properties ◽  
Impact Toughness ◽  
Retained Austenite ◽  
Rail Steel ◽  
High Impact ◽  
Good Thermal Stability ◽  
Austenite Stability ◽  
Retained Austenite Stability ◽  
Close Relationship ◽  
The Stability

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.

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