Influence of the austenitic rolling temperature on the microstructure of a TRIP steel before intercritical annealing

2009 ◽  
Vol 44 (12) ◽  
pp. 3057-3060 ◽  
Author(s):  
C. N. dos Santos ◽  
A. G. Vieira ◽  
A. S. Paula ◽  
C. S. C. Viana
Keyword(s):  
Trip Steel ◽  
Intercritical Annealing ◽  
Rolling Temperature

scholarly journals Internal Oxidation during Intercritical Annealing of CMnSi TRIP Steel

2009 ◽  
Vol 49 (4) ◽  
pp. 557-563 ◽  
Author(s):  
Yong Feng Gong ◽  
Han Soo Kim ◽  
Bruno Charles DE Cooman
Keyword(s):  
Internal Oxidation ◽  
Trip Steel ◽  
Intercritical Annealing

Study of Selective Oxidation Behavior of a 1.2Si-1.5Mn TRIP Steel during Intercritical Annealing

2012 ◽  
Vol 159 (12) ◽  
pp. C561-C570 ◽  
Author(s):  
Kuang-Kuo Wang ◽  
Chiung-Wen Hsu ◽  
Liuwen Chang ◽  
Dershin Gan ◽  
Tsung-Rong Chen ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Trip Steel ◽  
Oxidation Behavior ◽  
Intercritical Annealing

Microstructure and Mechanical Properties of a Lamellar-Structured Low-Alloy TRIP Steel

2021 ◽  
Vol 1016 ◽  
pp. 1188-1192
Author(s):  
Jiang Ying Meng ◽  
Zhi Geng Jia ◽  
Tong Liang Wang ◽  
Kai Fang Li ◽  
Li He Qian
Keyword(s):  
Mechanical Properties ◽  
Trip Steel ◽  
Retained Austenite ◽  
Treatment Process ◽  
Intercritical Annealing ◽  
Bainitic Ferrite ◽  
Heat Treatment Process ◽  
Transformation Induced Plasticity ◽  
Trip Steels ◽  
Reverted Austenite

In this paper, we report a lamellar-structured low-alloy transformation-induced plasticity (TRIP) steel; the microstructure of the steel consists of alternate lamellae of intercritical ferrite and reverted austenite on microscale, with the latter consisting of bainitic ferrite laths and retained austenite films on nanoscale. Such a microstructure was produced by a heat treatment process similar to that for producing conventional TRIP-assisted steels, i.e. intercritical annealing followed by austempering. Nevertheless, quenched martensite rather than a mixture of ferrite and pearlite was used as the starting structure for intercritical annealing to form austenite, and the resulting austenite was then transformed to bainite by austempering treatment. This steel exhibits much enhanced strength-ductility combinations as compared with those conventional polygonal-structured low-alloy TRIP steels.

Isothermal Bainite Transformation in Aluminium Bearing TRIP Steel

2013 ◽  
Vol 749 ◽  
pp. 237-242
Author(s):  
Peng Chen ◽  
Yun Bo Xu ◽  
Xiao Long Yang ◽  
Hong Liang Yi ◽  
Guo Dong Wang
Keyword(s):  
Radio Frequency ◽  
Induction Heating ◽  
Trip Steel ◽  
Transformation Temperature ◽  
Electron Probe ◽  
Annealing Temperature ◽  
Intercritical Annealing ◽  
Isothermal Transformation ◽  
Bainite Transformation ◽  
Intercritical Annealing Temperature

In this work, the bainite transformation during isothermality of aluminium bearing TRIP steel was studied by dilatometric experiment on a pushrod Formastor-F highspeed dilatometer with radio frequency induction heating. The aluminium bearing TRIP steel consisted of the microstructure of austenite, ferrite and bainite in the form of laths which produced by intercritical annealing and isothermal transformation followed by rapid cooling. The effect of intercritical annealing temperature and isothermal transformation temperature were studied by dilatometric experiment and JEOL JXA-8530F Electron Probe Microscopic Analyzer (EPMA).

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