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Interface affected zone for optimal strength and ductility in heterogeneous laminate
Huang CX; Wang YF; Ma XL; Yin S; Hoppel HW; Goken M; Wu XL(武晓雷); Gao HJ(高华健); Zhu YT
Source PublicationMATERIALS TODAY
AbstractInterfaces have been reported to significantly strengthen and toughen metallic materials. However, there has been a long-standing question on whether interface-affected-zone (IAZ) exists, and how it might behave. Here we report in situ high-resolution strain mapping near interfaces in a copper-bronze heterogeneous laminate, which revealed the existence of IAZs. Defined as the zone with strain gradient, the IAZ was found to form by the dislocations emitted from the interface. The IAZ width remained largely constant with a magnitude of a few micrometers with increasing applied strain. Interfaces produced both back stress strengthening and work hardening, which led to both higher strength and higher ductility with decreasing interface spacing until adjacent IAZs started to overlap, after which a tradeoff between strength and ductility occurred, indicating the existence of an optimum interface spacing for the best mechanical properties. These findings are expected to help with designing laminates and other heterogeneous metals and alloys for superior mechanical properties.
Indexed BySCI ; EI
WOS IDWOS:000443440600011
WOS Research AreaMaterials Science, Multidisciplinary
WOS SubjectMaterials Science
Funding OrganizationNational Key R&D Program of China [2017YFA0204402, 2017YFA0204403] ; National Natural Science Foundation of China [11672195, 11572328] ; Sichuan Youth Science and Technology Foundation [2016JQ0047] ; US Army Research Office ; National Science Foundation [DMR-1709318] ; German Research Council (DFG)
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Cited Times:80[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[Huang, C. X.
2.Wang, Y. F.] Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu 610065, Sichuan, Peoples R China
3.[Ma, X. L.
4.Zhu, Y. T.] North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
5.[Yin, S.
6.Gao, H. J.] Brown Univ, Sch Engn, Providence, RI 02912 USA
7.[Hoeppel, H. W.
8.Goeken, M.] Friedrich Alexander Univ Erlangen Nurnberg, Dept Mat Sci & Engn, Inst Gen Mat Properties 1, Martensstr 5, D-91058 Erlangen, Germany
9.[Wu, X. L.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
10.[Zhu, Y. T.] Nanjing Univ Sci & Technol, Jiangsu Key Lab Adv Micro & Nano Mat & Technol, Nanjing 210094, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Huang CX,Wang YF,Ma XL,et al. Interface affected zone for optimal strength and ductility in heterogeneous laminate[J]. MATERIALS TODAY,2018,21(7):713-719.
APA Huang CX.,Wang YF.,Ma XL.,Yin S.,Hoppel HW.,...&Zhu YT.(2018).Interface affected zone for optimal strength and ductility in heterogeneous laminate.MATERIALS TODAY,21(7),713-719.
MLA Huang CX,et al."Interface affected zone for optimal strength and ductility in heterogeneous laminate".MATERIALS TODAY 21.7(2018):713-719.
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