Synergistic effects of microstructural inhomogeneity and phase-transformation-induced plasticity for ductility improvements in metallic glass composites

doi:10.1016/j.msea.2022.143491

	Synergistic effects of microstructural inhomogeneity and phase-transformation-induced plasticity for ductility improvements in metallic glass composites
	Ma, Huwen 1,2; Zhao, Yanchun1,2 ; Wang, Xue 3; Ma, Dong 4; Gao, Yanfei 3
	2022-08-01
发表期刊	Materials Science and Engineering A
ISSN	0921-5093
卷号	849
摘要	Recent experiments show some successes in ductility improvements in bulk metallic glass (BMG) composite with metastable crystalline second-phase particles that are capable of phase transformation induced plasticity (TRIP), e.g., austenite to martensite upon straining. The underlying mechanisms are yet to be quantified for a few reasons. First, ductility enhanced by TRIP mechanism in crystalline materials is often credited to the delayed necking due to the enhanced work hardening rate, while BMG composites with such metastable second phases never fail by necking. Second, load partitioning amongst austenite and martensite phases and BMG matrix can be probed by in situ diffraction techniques, but its consequence on preventing or delaying the transition from shear bands to failure has not been revealed. In this work, synergistic effects of microstructural inhomogeneity and TRIP mechanism are quantitatively investigated from micromechanical finite element simulations, using the free-volume theory that is capable of explicitly modeling individual shear bands in the BMG matrix and a strain-driven TRIP model that can be calibrated from available neutron diffraction measurements. For metastable second phases to improve the BMG composite ductility, our parametric studies have found that the strength of the BMG matrix has to be in between the strengths of soft austenite and hard martensite phases, thus leading to the effectively confinement of shear bands near the second phase, the reduction of maximum shear band strain, and therefore the improvement of tensile ductility. Our micromechanical simulations also allow us to identify the roles played by geometric factors such percolation and core-shell or inverse core-shell distributions. © 2022 Elsevier B.V.
关键词	Austenite Composite materials Ductility Glass Martensite Matrix algebra Metallic glass Neutron diffraction Plasticity Shear flow Shells (structures) Solvents Strain hardening Bulk metallic glass Bulk metallic glass composite Bulk metallic glass composites Ductility enhancement Metallic glass matrix Metastables Second phase Shear band distribution Transformation induced plasticity
DOI	10.1016/j.msea.2022.143491
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000824491000002
出版者	Elsevier Ltd
EI入藏号	20222612296664
EI主题词	Shear bands
EI分类号	408.2 Structural Members and Shapes ; 531 Metallurgy and Metallography ; 531.2 Metallography ; 537.1 Heat Treatment Processes ; 631.1 Fluid Flow, General ; 803 Chemical Agents and Basic Industrial Chemicals ; 812.3 Glass ; 921.1 Algebra ; 951 Materials Science
来源库	WOS
引用统计	被引频次[WOS]：0 [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/159134
专题	材料科学与工程学院
通讯作者	Zhao, Yanchun; Gao, Yanfei
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 3.Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA; 4.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
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; 材料科学与工程学院
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; 材料科学与工程学院
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	Ma, Huwen,Zhao, Yanchun,Wang, Xue,et al. Synergistic effects of microstructural inhomogeneity and phase-transformation-induced plasticity for ductility improvements in metallic glass composites[J]. Materials Science and Engineering A,2022,849.
APA	Ma, Huwen,Zhao, Yanchun,Wang, Xue,Ma, Dong,&Gao, Yanfei.(2022).Synergistic effects of microstructural inhomogeneity and phase-transformation-induced plasticity for ductility improvements in metallic glass composites.Materials Science and Engineering A,849.
MLA	Ma, Huwen,et al."Synergistic effects of microstructural inhomogeneity and phase-transformation-induced plasticity for ductility improvements in metallic glass composites".Materials Science and Engineering A 849(2022).