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Simultaneously improving the strength and ductility of Fe-22Mn-0.6C twinning-induced plasticity steel via nitrogen addition
Yang, HK; Tian, YZ; Zhang, ZJ; Zhang, ZF; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2018-02-07
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume715Pages:276-280
AbstractThe effect of nitrogen addition on the mechanical properties of Fe-22Mn-0.6C (wt%) twinning-induced plasticity steel was studied. It was found that the stacking fault energies of the two steels were comparable, and the twinned grain fractions of FeMnC and FeMnC-N steels were similar before the true strain of 0.5. With increasing the strain to 0.7, the fraction of secondary twinned grain rose to support the further strong work-hardening rate of FeMnC-N steel. Moreover, the nitrogen addition suppressed the dynamic strain aging, which can trigger early shear fracture in FeMnC steel. Therefore, the work-hardening rate was kept increasing and the frequency of plastic instability was suppressed by nitrogen addition. As a result, the ultimate tensile strength and uniform elongation simultaneously increased in FeMnC-N steel.; The effect of nitrogen addition on the mechanical properties of Fe-22Mn-0.6C (wt%) twinning-induced plasticity steel was studied. It was found that the stacking fault energies of the two steels were comparable, and the twinned grain fractions of FeMnC and FeMnC-N steels were similar before the true strain of 0.5. With increasing the strain to 0.7, the fraction of secondary twinned grain rose to support the further strong work-hardening rate of FeMnC-N steel. Moreover, the nitrogen addition suppressed the dynamic strain aging, which can trigger early shear fracture in FeMnC steel. Therefore, the work-hardening rate was kept increasing and the frequency of plastic instability was suppressed by nitrogen addition. As a result, the ultimate tensile strength and uniform elongation simultaneously increased in FeMnC-N steel.
description.department[yang, h. k. ; tian, y. z. ; zhang, z. j. ; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [yang, h. k.] city univ hong kong, dept mech & biomed engn, 83 tat chee ave, hong kong, hong kong, peoples r china
KeywordStacking-fault Energy Cu-al Alloys Twip Steel Austenitic Steel Deformation Mechanisms Behavior Metals
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51331007, 51501198]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79516
Collection中国科学院金属研究所
Corresponding AuthorTian, YZ; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Yang, HK,Tian, YZ,Zhang, ZJ,et al. Simultaneously improving the strength and ductility of Fe-22Mn-0.6C twinning-induced plasticity steel via nitrogen addition[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,715:276-280.
APA Yang, HK,Tian, YZ,Zhang, ZJ,Zhang, ZF,&Zhang, ZF .(2018).Simultaneously improving the strength and ductility of Fe-22Mn-0.6C twinning-induced plasticity steel via nitrogen addition.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,715,276-280.
MLA Yang, HK,et al."Simultaneously improving the strength and ductility of Fe-22Mn-0.6C twinning-induced plasticity steel via nitrogen addition".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 715(2018):276-280.
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