Superior Strength and Ultrahigh Ductility in Hierarchical Structured 2205 Duplex
Jie Sheng1,2,3; Jing Jin1; Yu Shi1; Weiqian Chen1,2; Guocai Ma1,3; Jiafu Wei1; Yuehong Zheng1; Xin Guo1; Faqi Zhan1; Peiqing La1
2021-10-25
发表期刊Materials Transactions
ISSN1345-9678
卷号62期号:11页码:1604-1608
摘要

A laminated structured 2205 duplex stainless steel (DSS) with graded grain size was prepared via aluminothermic reaction and subsequent hot rolling with deformation of 80% at 1000 degrees C, and its mechanical properties, strengthening and toughening mechanism were studied. Our materials have extraordinary elongation of 54% and high tensile strength of 990 MPa. The lamellar structure is characterized with heterogeneous lamella austenite (with nano-grain, ultrafine grain, micro-grain and nano-twin) and ferrite (with ultrafine grain and a proper amount of micro grain) coalesced alternately. The high strength is attributed to strengthening of complex grain (distribution from nanoscale to microscale) and interfaces arising from hierarchical and laminated dual-phase heterogeneous structure and distribution. The unusual high ductility is thought to be mainly attributed to the lamellar structure and dislocation hardening.

关键词2205 DSS laminated structured microstructure plastic deformation mechanisms strength-ductility balance
DOI10.2320/matertrans.MT-M2021085
收录类别SCI ; SCIE
语种英语
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000711483600002
出版者JAPAN INST METALS & MATERIALS
来源库WOS
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/149452
专题个人在本单位外知识产出
材料科学与工程学院
省部共建有色金属先进加工与再利用国家重点实验室
学科建设与学位办公室
通讯作者Peiqing La
作者单位1.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
2.Gansu Key Laboratory of Solar Power System Engineering Project, Jiuquan Vocational and Technical College, Jiuquan 735100, China
3.Jiuquan Iron and Steel Group, Jiayuguan 735000, China
4.Ufa State Aviation Technical University
第一作者单位省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式
GB/T 7714
Jie Sheng,Jing Jin,Yu Shi,et al. Superior Strength and Ultrahigh Ductility in Hierarchical Structured 2205 Duplex[J]. Materials Transactions,2021,62(11):1604-1608.
APA Jie Sheng.,Jing Jin.,Yu Shi.,Weiqian Chen.,Guocai Ma.,...&Raab Georgiy I..(2021).Superior Strength and Ultrahigh Ductility in Hierarchical Structured 2205 Duplex.Materials Transactions,62(11),1604-1608.
MLA Jie Sheng,et al."Superior Strength and Ultrahigh Ductility in Hierarchical Structured 2205 Duplex".Materials Transactions 62.11(2021):1604-1608.
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