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Superior strength-ductility synergy by hetero-structuring high manganese steel
Fang X1; Xue QQ2,3; Yu KY1; Li RG4; Jiang DQ1; Ge L1; Ren Y5; Chen CF1; Wu XL(武晓雷)2,3
AbstractLacking of forest hardening makes low ductility in steels long challenge particularly at high yield strength. Here, we report to make good use of hetero-structuring for superior strength-ductility synergy in high manganese steel. The point is to retain original deformed structure of large quantity, along with recrystallized ultrafine-grains and fine grains, jointly for most effective heterogeneous deformation-induced (HDI) hardening especially at high strength. The residual plastic strain of larger than 0.2% and large proportion of HDI stress over 60% indicate the crucial role in ductility by HDI hardening. This renders a significantly upgraded strength-ductility combination within high strength scope. Impact statement By using the hetero-structuring strategy, a superior strength-ductility synergy is realized specifically at ultra-high strength in high manganese steel.
KeywordHetero-structuring heterogeneous deformation-induced strain hardening ductility ultra-high strength steel high manganese steel
Indexed BySCI
WOS IDWOS:000549792200001
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding OrganizationNSFC[51871241] ; NSFC[91963112] ; NSFC[11972350] ; MOST[2017YFA0204402] ; CAS[XDB2204 0503] ; US Department of Energy, Office of Science, and Office of Basic Energy Science[DE-AC0206CH11357]
ContributorYu, Kaiyuan ; 武晓雷
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China;
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China;
4.Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing, Peoples R China;
5.Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA
Recommended Citation
GB/T 7714
Fang X,Xue QQ,Yu KY,et al. Superior strength-ductility synergy by hetero-structuring high manganese steel[J]. MATERIALS RESEARCH LETTERS,2020,8(11):417-423.
APA Fang X.,Xue QQ.,Yu KY.,Li RG.,Jiang DQ.,...&武晓雷.(2020).Superior strength-ductility synergy by hetero-structuring high manganese steel.MATERIALS RESEARCH LETTERS,8(11),417-423.
MLA Fang X,et al."Superior strength-ductility synergy by hetero-structuring high manganese steel".MATERIALS RESEARCH LETTERS 8.11(2020):417-423.
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