In-situ measurement of local strain partitioning in a commercial dual-phase steel

2007 ◽  
Vol 98 (8) ◽  
pp. 664-673 ◽  
Author(s):  
Yuriy Ososkov ◽  
David S. Wilkinson ◽  
Mukesh Jain ◽  
Todd Simpson
Keyword(s):  
Dual Phase Steel ◽  
Local Strain ◽  
In Situ Measurement ◽  
Dual Phase ◽  
Strain Partitioning

scholarly journals Study of the Mechanical Behavior of Dual-Phase Steel Based on Crystal Plasticity Modeling Considering Strain Partitioning

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 782 ◽  
Author(s):  
Yongsheng Xu ◽  
Wenjiao Dan ◽  
Chuang Ren ◽  
Tingting Huang ◽  
Weigang Zhang
Keyword(s):  
Mechanical Behavior ◽  
Crystal Plasticity ◽  
Dual Phase ◽  
Strain Partitioning ◽  
Textural Evolution ◽  
Mixed Hardening ◽  
Calculated Stress ◽  
Grain Orientations ◽  
Dp Steels

The similar crystal structures of martensite (BCT) and ferrite (BCC) cause difficulty in distinguishing the grain orientations of individual phases in dual-phase (DP) steels. A dislocation-based multiphase mixed hardening model is presented, considering both ferrite and martensite strain partitioning, to describe the texture-dependent mechanical behavior of DP steels more precisely. This model is based on the ideals that (i) the volume fractions of the constituent phases and the corresponding strain partitioning function are obtained through in situ tensile experimentation, and (ii) the grain orientations of ferrite and martensite are assumed to be in accordance with the overall texture. We applied the model to calculate the macroscopic and microscopic mechanical behavior of DP800 steel using a crystal plasticity finite element (CPFE) code. The results show that the calculated stress-strain response and textural evolution are in good agreement with the experimental results. The dislocation evolution indicates that the rapid hardening of ferrite induces a high hardening rate for DP steels early in plastic deformation. In addition, for the grains corresponding to the texture center orientations of DP800, the activity and dislocation density evolutions of the slip systems are studied.

In-situ EBSD study of deformation behaviour of 600 MPa grade dual phase steel during uniaxial tensile tests

2019 ◽  
Vol 759 ◽  
pp. 624-632 ◽  
Author(s):  
Shengci Li ◽  
Chengyu Guo ◽  
Leilei Hao ◽  
Yonglin Kang ◽  
Yuguo An
Keyword(s):  
Dual Phase Steel ◽  
Deformation Behaviour ◽  
Tensile Tests ◽  
Uniaxial Tensile ◽  
Dual Phase

Method for measuring nanoscale local strain in a dual phase steel using digital image correlation with nanodot patterns

2013 ◽  
Vol 68 (5) ◽  
pp. 245-248 ◽  
Author(s):  
Soo-Hyun Joo ◽  
Jae Kon Lee ◽  
Jin-Mo Koo ◽  
Sunghak Lee ◽  
Dong-Woo Suh ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Dual Phase Steel ◽  
Local Strain ◽  
Image Correlation ◽  
Dual Phase

Crystal plasticity study on stress and strain partitioning in a measured 3D dual phase steel microstructure

2017 ◽  
Vol 20 (3) ◽  
pp. 311-323 ◽  
Author(s):  
M. Diehl ◽  
D. An ◽  
P. Shanthraj ◽  
S. Zaefferer ◽  
F. Roters ◽  
...  
Keyword(s):  
Crystal Plasticity ◽  
Dual Phase Steel ◽  
Stress And Strain ◽  
Dual Phase ◽  
Strain Partitioning ◽  
Steel Microstructure
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