The effect of cold rolled reduction ratios on grain boundary character and mechanical properties of the SUS301L austenitic stainless steel
Li, Junchen1,2,3; Luo, Xiaoxia1; Ma, Guocai3; Wang, Junwei3; Pan, Jixiang3; Ruan, Qiang3
2019-12
Source PublicationMATERIALS RESEARCH EXPRESS
ISSN2053-1591
Volume6Issue:12
AbstractWith the rapid development of the rail vehicle industry, SUS301L austenitic stainless steel becomes the main material of rail vehicles, due to its cold processing performance, which has attracted much attention. In order to study the effect of grain boundary feature distribution on the properties of 301L stainless steel during cold deformation. 301L stainless steel samples with a cold rolling reduction of 3%, 5%, 9%, and 24% were prepared. The microstructure, mechanical properties and corrosion resistance of samples with different grain boundary characteristics were studied by means of OM, EBSD, universal testing machine and three-electrode electrochemical workstation. The result shows that with the increasing of the cold rolling reduction, grain orientation < 111 > is significantly weakened, the grain boundary of small angles gradually increases. Meanwhile, the grain boundary of large angle the strong grain boundary of Sigma <= 29 gradually decreases. 301L stainless steel high ductility and toughness can be improved by obtaining a frequency of low Sigma values in the coincident site lattice (CSL) grain boundaries. The microstructure and grain size is gradually getting smaller. The strength increased, while ductility, toughness, and the corrosion resistance reduced. The grain boundary of Sigma 3 gradually decreases with the increase of cold rolling reduction, but the reduction range of 9%similar to 24% is not significant.
Keyword301L stainless steel microstructure corrosion mechanical properties CSL grain boundary
DOI10.1088/2053-1591/ab59a3
Indexed BySCI
Language英语
Funding ProjectInnovation Base and Talent Plan of Gansu Province[17JR5RA131] ; Science and Technology Major Project of Gansu Province[17ZD2GB012]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000516861600005
PublisherIOP PUBLISHING LTD
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64134
Collection材料科学与工程学院
Corresponding AuthorLi, Junchen
Affiliation1.Lanzhou Univ Technol, Coll Mat Sci & Engn, Lanzhou 730050, Peoples R China
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Reuse Nonferrous Met, Lanzhou 730050, Peoples R China
3.Jiuquan Iron & Steel Grp Co Ltd, Jiayuguan 735100, Peoples R China
First Author AffilicationColl Mat Sci & Engn;  Lanzhou University of Technology
Corresponding Author AffilicationColl Mat Sci & Engn;  Lanzhou University of Technology
First Signature AffilicationColl Mat Sci & Engn
Recommended Citation
GB/T 7714
Li, Junchen,Luo, Xiaoxia,Ma, Guocai,et al. The effect of cold rolled reduction ratios on grain boundary character and mechanical properties of the SUS301L austenitic stainless steel[J]. MATERIALS RESEARCH EXPRESS,2019,6(12).
APA Li, Junchen,Luo, Xiaoxia,Ma, Guocai,Wang, Junwei,Pan, Jixiang,&Ruan, Qiang.(2019).The effect of cold rolled reduction ratios on grain boundary character and mechanical properties of the SUS301L austenitic stainless steel.MATERIALS RESEARCH EXPRESS,6(12).
MLA Li, Junchen,et al."The effect of cold rolled reduction ratios on grain boundary character and mechanical properties of the SUS301L austenitic stainless steel".MATERIALS RESEARCH EXPRESS 6.12(2019).
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