Effect of intercritical temperature and cold-deformation on the kinetics of austenite formation during the intercritical annealing of dual-phase steels

1990 ◽  
Vol 61 (3) ◽  
pp. 131-135 ◽  
Author(s):  
Ismail A. El-Sesy ◽  
Hans-Joachim Klaar ◽  
Abdel-Hamid A. Hussein
2016 ◽  
Vol 19 (1) ◽  
pp. 258-266 ◽  
Author(s):  
José Francisco da Silva Filho ◽  
Carlos Augusto Silva de Oliveira ◽  
Nina Fonstein ◽  
Olga Girina ◽  
Fabiano José Fabri Miranda ◽  
...  

2008 ◽  
Vol 48 (9) ◽  
pp. 1251-1255 ◽  
Author(s):  
Mohsen Asadi Asadabad ◽  
Massoud Goodarzi ◽  
Shahram Kheirandish

1981 ◽  
Vol 12 (8) ◽  
pp. 1419-1428 ◽  
Author(s):  
G. R. Speich ◽  
V. A. Demarest ◽  
R. L. Miller

2015 ◽  
Vol 22 (4) ◽  
pp. 1203-1211 ◽  
Author(s):  
Sheng-ci Li ◽  
Yong-lin Kang ◽  
Guo-ming Zhu ◽  
Shuang Kuang

2007 ◽  
Vol 57 (2) ◽  
pp. 89-92 ◽  
Author(s):  
A. García-Junceda ◽  
F.G. Caballero ◽  
C. Capdevila ◽  
C. García de Andrés

1989 ◽  
Vol 60 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Dipak Kumar Mondal ◽  
Ranjit Kumar Ray

2006 ◽  
Vol 503-504 ◽  
pp. 447-454 ◽  
Author(s):  
Dong Hyuk Shin ◽  
Woo Gyeom Kim ◽  
Jung Yong Ahn ◽  
Kyung Tae Park ◽  
Yong Suk Kim

Ultrafine grained (UFG) ferrite-martensite dual phase steels were fabricated by equal channel angular pressing and subsequent intercritical annealing. Their room temperature tensile properties were examined and compared to those of coarse grained counterpart. The formation of UFG martensite islands of ~ 1 μm was not confined to the former pearlite colonies but they were uniformly distributed throughout UFG matrix. The strength of UFG dual phase steels was much higher than that of coarse grained counterpart but uniform and total elongation were not degraded. More importantly, unlike most UFG metals showing negligible strain hardening, the present UFG dual phase steels exhibited extensive rapid strain hardening.


1984 ◽  
Vol 15 (7) ◽  
pp. 1499-1502 ◽  
Author(s):  
N. Pussegoda ◽  
W. R. Tyson ◽  
P. Wycliffe ◽  
G. R. Purdy

2007 ◽  
Vol 558-559 ◽  
pp. 247-252 ◽  
Author(s):  
Naoki Maruyama ◽  
T. Ogawa ◽  
M. Takahashi

Subgrain growth in deformed ferrite and incomplete recrystallisation during intercritical annealing in low carbon (LC) steels was investigated by EBSD and FEGTEM/EDS. It was confirmed that fine dual phase (α+γ) microstructures could be obtained even without the addition of microalloying elements such as Nb and Ti, if the steels were heated above Ac1 temperature before the completion of primary recrystallisation and then intercritically annealed. The fine microstructure was found to be mainly due to the inhibition of primary recrystallisation, and also due to the inhibition of subgrain growth in deformed matrix by finely dispersed γ phase formed during heating. Mn segregation at α/γ interfaces seems to indicate that the kinetics of boundary migration in the existence of γ is controlled by the volume diffusion of substitutional alloying elements across the α/γ interfaces.


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