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Mechanical Properties and Tensile Fracture Mechanisms of Fe-Mn-(Al, Si) TRIP/TWIP Steels with Different Ferrite Volume Fractions
Dong, Fu Yuan; Pang, Jian Chao; Zhang, Peng; Duan, Qi Qiang; Zhang, Zhe Feng; zhfzhang@imr.ac.cn
2015
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Volume17Issue:11Pages:1675-1682
AbstractThe mechanical properties, damage, and fracture behaviors of Fe-Mn-(Al, Si) steels containing different Mn content and volume fraction of ferrite have been investigated through tensile testing. It is found that the volume fraction of ferrite has significant influences on the mechanical properties and damage accumulation. With increasing the Mn content, both the yield strength and ultimate tensile strength are decreased, while the uniform elongation is continuously increased, showing a typical trade-off relation between strength and elongation. The difference in the work-hardening behavior can be attributed to the increase in the stacking fault energy (SFE) caused by the addition of Mn. The failure mechanisms of the steels are found to be mainly influenced by deformation localization due to microstructural inhomogeneity. On the one hand, the Fe-Mn-(Al, Si) steel with a much more uniform distribution of austenite shows a slower rate of damage growth and a continuous void nucleation during the deformation process, resulting in a higher void density prior to the final fracture. On the other hand, the Fe-Mn-(Al, Si) steel with more ferrite exhibits accelerated void growth and catastrophic coalescence.
description.department[dong, fu yuan ; pang, jian chao ; zhang, peng ; duan, qi qiang ; zhang, zhe feng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51301179, 51331107]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74960
Collection中国科学院金属研究所
Corresponding Authorzhfzhang@imr.ac.cn
Recommended Citation
GB/T 7714
Dong, Fu Yuan,Pang, Jian Chao,Zhang, Peng,et al. Mechanical Properties and Tensile Fracture Mechanisms of Fe-Mn-(Al, Si) TRIP/TWIP Steels with Different Ferrite Volume Fractions[J]. ADVANCED ENGINEERING MATERIALS,2015,17(11):1675-1682.
APA Dong, Fu Yuan,Pang, Jian Chao,Zhang, Peng,Duan, Qi Qiang,Zhang, Zhe Feng,&zhfzhang@imr.ac.cn.(2015).Mechanical Properties and Tensile Fracture Mechanisms of Fe-Mn-(Al, Si) TRIP/TWIP Steels with Different Ferrite Volume Fractions.ADVANCED ENGINEERING MATERIALS,17(11),1675-1682.
MLA Dong, Fu Yuan,et al."Mechanical Properties and Tensile Fracture Mechanisms of Fe-Mn-(Al, Si) TRIP/TWIP Steels with Different Ferrite Volume Fractions".ADVANCED ENGINEERING MATERIALS 17.11(2015):1675-1682.
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