Inclusion Engineering in Medium Mn Steels: Effect of Hot-Rolling Process on the Deformation Behaviors of Oxide and Sulfide Inclusions

被引:12
|
作者
Wang, Yong [1 ,2 ]
Yang, Yonggang [2 ,3 ]
Dong, Zhihua [4 ,5 ]
Park, Joo Hyun [2 ,6 ]
Mi, Zhenli [3 ]
Mao, Xinping [3 ]
Mu, Wangzhong [2 ,7 ]
机构
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
[2] KTH Royal Inst Technol, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden
[3] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Natl Engn Res Ctr Adv Rolling Technol, Beijing 100083, Peoples R China
[4] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
[5] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[6] Hanyang Univ, Dept Mat Sci & Chem Engn, Ansan 15588, South Korea
[7] Northeastern Univ, Sch Met, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China
来源
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2022年 / 53卷 / 04期
关键词
MEDIUM-MANGANESE STEEL; NONMETALLIC INCLUSIONS; MECHANICAL-PROPERTIES; TENSILE BEHAVIOR; INTERFACE; AUSTENITE; STABILITY; TEMPERATURE; SIMULATION; PLASTICITY;
D O I
10.1007/s11663-022-02517-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Medium Mn steel (MMS) is a new category of the third-generation advanced high strength steel (3rd AHSS) which is developed in the recent 1-2 decades due to a unique trade-off of strength and ductility. Thus, this steel grade has a wide application potential in different fields of industry. The current work provides a fundamental study of the effect of hot-rolling on the inclusion deformation inMMSincluding a varied 7 to 9 mass pctMn. Specifically, the deformation behavior of different types of inclusions (i.e., Mn(S,Se), liquid oxide (MnSiO3), MnAl2O4, and complex oxy-sulfide) was investigated. The results show that both MnSiO3 and Mn(S,Se) are soft inclusions which are able to be deformed during the hot-rolling process but MnAl2O4 does not. The aspect ratio of soft inclusions increases significantly from as-cast to hot-rolling conditions. When the maximum size of different inclusions is similar, Mn(S,Se) deforms more than MnSiO3 does. This is due to a joint influence of physical parameters including Young's modulus, coefficient of thermal expansion (a), etc. However, when the maximum size of one type of inclusion (e.g., MnSiO3) is much larger than another one (e.g., Mn(S,Se)), this maximum size of soft inclusions plays a dominant role than other factors. In addition, the deformation behavior of dual-phase inclusion depends on the major phase, i.e., either oxide or sulfide. Last but not least, empirical correlations between the reduction ratio of the thickness of plate, grain size, and aspect ratio of oxide and sulfide inclusions after hot-rolling are provided quantitatively. This work aims to contribute to the 'inclusion engineering' concept in the manufacturing of new generation AHSS. (C) The Author(s) 2022
引用
收藏
页码:2182 / 2197
页数:16
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