scholarly journals Lean duplex TRIP steel: Role of ferrite in the texture development, plastic anisotropy, martensitic transformation kinetics, and stress partitioning

Materialia ◽  
2021 ◽  
Vol 15 ◽  
pp. 100952
Author(s):  
Peijun Hou ◽  
Yuan Li ◽  
Dongchul Chae ◽  
Yang Ren ◽  
Ke An ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Trip Steel ◽  
Plastic Anisotropy ◽  
Texture Development ◽  
Transformation Kinetics ◽  
Stress Partitioning

Effect of Transformation on Springback for TRIP Steel Stamping

2011 ◽  
Vol 221 ◽  
pp. 405-410 ◽  
Author(s):  
Li Liu ◽  
Ti Kun Shan
Keyword(s):  
Martensitic Transformation ◽  
Young’S Modulus ◽  
Trip Steel ◽  
Steel Sheet ◽  
Young's Modulus ◽  
Sheet Steel ◽  
Transformation Kinetics ◽  
Sheet Stamping ◽  
Trip Steel Sheet ◽  
Springback Prediction

A relation between the Young’s modulus and the martensitic transformation during TRIP sheet steel stamping is investigated. A TRIP steel, TRIP600, is used to study the phenomenon. The transformation kinetics under different loading paths were gotten through simple-shear, uniaxial tension, plane strain and equibiaxial stretching tests. The Young’s modulus, which plays an important role in accurate springback prediction for TRIP steel sheet stamping, is changed with the martensitic transformation during TRIP steel deformation. To improve the accuracy of springback simulation, the constitutive model of the TRIP steel is developed considering the variation of the Young’s modulus with the martensitic transformation. The accuracy of the proposed method is verified by the experimental results.

scholarly journals Evidence of Martensitic Transformation in Fe-Mn-Al Steel Similar to Maraging Steel

2020 ◽  
Vol 52 (1) ◽  
pp. 26-33
Author(s):  
Gurumayum Robert Kenedy ◽  
Yi-Jyun Lin ◽  
Wei-Chun Cheng
Keyword(s):  
Martensitic Transformation ◽  
Maraging Steel ◽  
Trip Steel ◽  
Single Phase ◽  
Lath Martensite ◽  
Al Alloy ◽  
Air Cooling ◽  
Small Temperature Gradient ◽  
Austenite Grains ◽  
Equilibrium Phases

AbstractThe Fe-Mn-Al steels claim a low density, and some fall into the category of transformation-induced plasticity (TRIP) steel. In Fe-Mn-Al TRIP steel development, phase transformations play an important role. Herein, the martensitic transformation of an Fe-16.7 Mn-3.4 Al ternary alloy (wt pct) was experimentally discovered, whose equilibrium phases are a single phase of austenite at 1373 K and dual phases of ferrite and austenite at low temperature. Ferritic lath martensite forms in the prior austenite grains after cooling from 1373 K under various cooling rates via quenching, air cooling, and furnace cooling. The formation mechanism of the ferritic lath martensite is different from that of traditional ferritic lath martensite in steel and quite similar to that in maraging steel. A slight strain energy coupled with a small temperature gradient can lead to the formation of ferritic lath martensite in the Fe-Mn-Al alloy after cooling from high temperature. It is also found that micro-twins exist in the ferritic lath martensite.

scholarly journals Influence of the martensitic transformation kinetics on the magnetocaloric effect in Ni-Mn-In

2020 ◽  
Vol 4 (11) ◽  
Author(s):  
L. Pfeuffer ◽  
T. Gottschall ◽  
T. Faske ◽  
A. Taubel ◽  
F. Scheibel ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Magnetocaloric Effect ◽  
Transformation Kinetics

Role of initial texture on the plastic anisotropy of Mg–3Al–1Zn alloy at various temperatures

2011 ◽  
Vol 528 (3) ◽  
pp. 1162-1172 ◽  
Author(s):  
Byoung Ho Lee ◽  
Sung Hyuk Park ◽  
Seong-Gu Hong ◽  
Kyung-Tae Park ◽  
Chong Soo Lee
Keyword(s):  
Plastic Anisotropy ◽  
Initial Texture
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