Modelling of flow stress of dual phase steel under warm tensile deformation

2011 ◽  
Vol 27 (6) ◽  
pp. 1002-1006 ◽  
Author(s):  
W Chen ◽  
S Cheng ◽  
L Xue ◽  
G Y Teng ◽  
M Y Wu
Keyword(s):  
Flow Stress ◽  
Dual Phase Steel ◽  
Tensile Deformation ◽  
Dual Phase

Tempering Response to Different Morphologies of Martensite in Tensile Deformation of Dual-Phase Steel

2012 ◽  
Vol 510-511 ◽  
pp. 80-88
Author(s):  
E. Ahmad ◽  
T. Manzoor ◽  
M. Sarwar ◽  
M. Arif ◽  
N. Hussain
Keyword(s):  
Tensile Strength ◽  
Grain Boundary ◽  
Microscopic Examination ◽  
Dual Phase Steel ◽  
Tensile Deformation ◽  
Dual Phase ◽  
Low Alloy Steel ◽  
High Tensile Strength ◽  
Heat Treated ◽  
The Matrix

A low alloy steel containing 0.2%C was heat treated with three cycles of heat treatments with the aim to acquire different morphologies of martensite in dual phase microstructure. Microscopic examination revealed that the morphologies consisting of grain boundary growth, scattered laths and bulk form of martensite were obtained. These morphologies have their distinct patterns of distribution in the matrix (ferrite). In tensile properties observations the dual phase steel with bulk morphology of martensite showed minimum of ductility but high tensile strength as compared to other two morphologies. This may be due to poor alignments of bulk martensite particles along tensile axes during deformation. Tempering was employed with various holding times at 550°C to induce ductility in the heat treated material. The tempering progressively increased the ductility by increasing holding time. However, tempering response to strengths and ductilities was different to all three morphologies of martensite.

Influence of annealing texture on dynamic tensile deformation characteristics of Dual phase steel

2018 ◽  
Vol 736 ◽  
pp. 209-218 ◽  
Author(s):  
Manashi Adhikary ◽  
Arnab Chakraborty ◽  
Anindya Das ◽  
Venugopalan T ◽  
Ravi Kumar B
Keyword(s):  
Dual Phase Steel ◽  
Tensile Deformation ◽  
Dual Phase ◽  
Deformation Characteristics ◽  
Annealing Texture

Effect of Martensite Morphology on Tensile Deformation of Dual-Phase Steel

2011 ◽  
Vol 21 (3) ◽  
pp. 382-387 ◽  
Author(s):  
E. Ahmad ◽  
T. Manzoor ◽  
M. M. A. Ziai ◽  
N. Hussain
Keyword(s):  
Dual Phase Steel ◽  
Tensile Deformation ◽  
Dual Phase

Microstructure Evolution and Numerical Simulation of DP Steel TWBs During Warm Tensile Deformation

2011 ◽  
Vol 418-420 ◽  
pp. 1222-1227
Author(s):  
Lu You Yue ◽  
Zhong Fu Huang ◽  
Zhen Liang He ◽  
Man Guo Jiang ◽  
Wei Chen
Keyword(s):  
Microstructure Evolution ◽  
Dual Phase Steel ◽  
Volume Fraction ◽  
Tensile Deformation ◽  
Weld Zone ◽  
Tensile Tests ◽  
Secondary Development ◽  
Tensile Fracture ◽  
Dual Phase ◽  
Tailor Welded Blanks

The tensile tests of DP590 dual-phase steel tailor-welded blanks were carried out at different temperatures and strain rates. Quantitative analysis of metallographic was utilized to study the microstructure evolution of the base metal area and the weld zone of the tensile fracture. By combining the microstructure evolution model with the secondary development technologies of ABAQUS, the microstructure evolution of dual-phase steel tailor-welded blanks was simulated during warm tensile tests. The results show that, with the temperature increasing and strain rate decreasing, the dynamic recrystallization volume fraction of ferrite increases, and the martensite transform into equiaxed ferrite gradually. The results of microstructure simulation are in good agreement with experimental results.

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