Effects of rejuvenation modes on the microstructures and mechanical properties of metallic glasses

doi:10.1016/j.mtcomm.2023.106493

IMECH-IR > 非线性力学国家重点实验室

	Effects of rejuvenation modes on the microstructures and mechanical properties of metallic glasses
	Li, Shan ; Yu, Yue ; Branicio, PauloS ; Sha ZD(沙振东)
发表期刊	MATERIALS TODAY COMMUNICATIONS
	2023-08-01
卷号	36 页码:106493
摘要	This study systematically investigates the effects of three rejuvenation modes, namely biaxial loading, thermal pressure loading, and cryogenic thermal cycling, on the microstructures and mechanical properties of Cu64Zr36 metallic glasses (MGs) using molecular dynamics (MD) simulations. The simulation results demonstrate that biaxial tension application during loading results in a rejuvenated glassy state with high strength. Specifically, we find that the yield stress, Young's modulus, and shear modulus of the rejuvenated glass obtained by biaxial tensile loading decreased by 2.8%, 2.1%, and 2.7%, respectively, compared to an as-cast MG reference. We also find that MGs achieve the greatest degree of rejuvenation, at the expense of strength, with the use of thermal pressure loading. Interestingly, the application of cryogenic thermal cycling results in a rejuvenated state with a lower strength drop compared to thermal pressure loading. Furthermore, analysis of the potential energy and medium-range-order (MRO) size indicates that the microstructures of MGs achieves a high-energy ordered glass state after thermal pressure loading, but a high-energy disordered glass state after biaxial tensile loading and cryogenic thermal cycling. These findings provide meaningful insights into the effect of rejuvenation modes on the microstructures and mechanical properties of MGs, as well as useful guidelines for designing MGs with high strength and superior plasticity for prospective applications in industry.
关键词	Metallic glass Rejuvenation method Mechanical property Amorphous microstructures
DOI	10.1016/j.mtcomm.2023.106493
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001058325400001
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
项目资助者	National Natural Science Foundation of China [11972278] ; Opening fund of State Key Laboratory of Nonlinear Mechanics ; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0020295]
论文分区	二类
力学所作者排名	1
RpAuthor	Sha, ZD (corresponding author), Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China. ; Branicio, PS (corresponding author), Univ Southern Calif, Mork Family Dept Chem Engn & Mat Sci, 3651 Watt Way, Los Angeles, CA 90089 USA.
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92640
专题	非线性力学国家重点实验室
作者单位	1.{Li Shan, Sha Zhen-Dong} Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China 2.{Yu Yue} Nanjing Univ Chinese Med Coll Pharm 138 Xianlin Rd Nanjing 210028 Peoples R China 3.{Branicio Paulo S.} Univ Southern Calif Mork Family Dept Chem Engn & Mat Sci 3651 Watt Way Los Angeles CA 90089 USA 4.{Sha Zhen-Dong} Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Li, Shan,Yu, Yue,Branicio, PauloS,et al. Effects of rejuvenation modes on the microstructures and mechanical properties of metallic glasses[J]. MATERIALS TODAY COMMUNICATIONS,2023,36:106493.
APA	Li, Shan,Yu, Yue,Branicio, PauloS,&沙振东.(2023).Effects of rejuvenation modes on the microstructures and mechanical properties of metallic glasses.MATERIALS TODAY COMMUNICATIONS,36,106493.
MLA	Li, Shan,et al."Effects of rejuvenation modes on the microstructures and mechanical properties of metallic glasses".MATERIALS TODAY COMMUNICATIONS 36(2023):106493.

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