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| Microstructure Characteristics of an Fe��Mn��C TWIP Steel After Deformation |
| DAI Yong��juan, TANG Di ,MI Zhen��li , L�� Jian��chong |
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Abstract Abstract: The present paper investigated deformatiom microstructure characteristcsl of the Fe-Mn-C TWIP steel .The results showed that the hot rolled �C cold rolled - annealed sample of Fe-Mn-C TWIP steels has excellent mechanical properties, the true stress-strain curve from tension tests exhibit repeated serrations. The deformed microstructure exhibited the typical planar glide characteristics such as no cell formation, dislocation pile ups on a single slip plane, mechanical twins and stacking faults. There are equiaxial and deep dimple structures in the fractograph, it is a typical ductile fracture. microcrack initiated from inclusions and twin-twin intersections, Its deformation and mfracture processes were the formation, growth and coalescence of microvoids. Because of high amount of anganese, there are many inclusions of strip MnS, the quantity of sulphur should be controlled during steelmaking.
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Received: 05 June 2009
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Corresponding Authors:
������ Dai Yong-juan
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| [1] |
Xiao��feng ZHANG,,Hao YANG,De��ping LENG,Long ZHANG,Zhen��yi HUANG,Guang CHEN. Tensile Deformation Behavior of Fe��Mn��Al��C Low Density Steels[J]. Chinese Journal of Iron and Steel, 2016, 23(9): 963-972. |
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Zhi-ping XIONG,,Xue-ping REN,Jian SHU,,Zhe-lei WANG,Wei-ping BAO,,Shu-xia LI. Effect of Temperature on Microstructure and Deformation Mechanism of Fe-30Mn-3Si-4Al TWIP Steel at Strain Rate of 700 s-1[J]. Chinese Journal of Iron and Steel, 2015, 22(2): 179-184. |
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Jian-li HE,,Juan LIU,Zhen-shan CUI,Chao-zhong YANG,Fei CHEN. Ductile Fracture Prediction of 316LN Stainless Steel in Hot Deformation Process[J]. Chinese Journal of Iron and Steel, 2014, 21(10): 923-930. |
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2010, Vol. 17 
