Hardness fluctuations caused by annealing in Zr-based bulk metallic glasses via nanoindentation

doi:10.1016/j.jmrt.2024.06.241

IMECH-IR > 微重力重点实验室

	Hardness fluctuations caused by annealing in Zr-based bulk metallic glasses via nanoindentation
	Li, Yansen1,2,3 ; Jiang, Nan1,2,3 ; Tan, Yuling 1,2,3; Zhang K(张坤)4 ; Wei BC(魏炳忱)4
通讯作者	Li, Yansen([email protected]) ; Zhang, Kun([email protected])
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
	2024-07-01
卷号	31 页码:2257-2265
ISSN	2238-7854
摘要	The micromechanical response of a Zr-based bulk metallic glass (BMG) annealed in air below and above its glass transition temperature was studied. Nano-sized particles in different states at different annealing temperatures were found on the surface of the samples, which were identified by energy-dispersive spectroscopy (EDS) as being CuNi elemental composition. The surface microhardness and nanoindentation creep behavior of the BMGs after annealed exhibited interesting results, at low annealing temperatures, the microhardness of the samples showed softening accompanied by poor creep resistance, while at high annealing temperatures, the hardness of the samples shows hardening and creep resistance was enhanced. The consequences of such a temperaturedependent dichotomy were intricately linked to element segregation, which led to microstructural fluctuations. A competing mechanism between the hardening effect of zirconia at the surface and the softening effect of elemental segregation in the formation of microporous structures inside the samples is proposed to account for the divergent mechanical properties due to the annealing temperature. This work presents helpful insights into microstructural changes and micromechanical properties of BMGs during annealing, as well as an experimental support for structural and property modulation of BMGs.
关键词	Bulk metallic glasses Annealing treatment Element segregation Nanoindentation creep
DOI	10.1016/j.jmrt.2024.06.241
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001265657700001
关键词[WOS]	MECHANICAL-PROPERTIES ; SHEAR BANDS ; OXIDATION ; CREEP ; INDENTATION ; EVOLUTION ; SCALE
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助项目	Science and Technology Project of Hebei Education Department[QN2023156] ; Key Project of Natural Science Foundation of Hebei Province (Basic Discipline Research)[A2023210064] ; National Natural Science Foundation of China[12272392] ; National Natural Science Foundation of China[11790292]
项目资助者	Science and Technology Project of Hebei Education Department ; Key Project of Natural Science Foundation of Hebei Province (Basic Discipline Research) ; National Natural Science Foundation of China
论文分区	一类
力学所作者排名	1
RpAuthor	Li, Yansen ; Zhang, Kun
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/95948
专题	微重力重点实验室
作者单位	1.Shijiazhuang Tiedao Univ, Hebei Res Ctr Basic Discipline Engn Mech, Shijiazhuang 050043, Peoples R China; 2.Shijiazhuang Tiedao Univ, Prov Collaborat Innovat Ctr Mech Intelligent Mat H, Shijiazhuang 050043, Peoples R China; 3.Shijiazhuang Tiedao Univ, Hebei Key Lab Mech Intelligent Mat & Struct, Shijiazhuang 050043, Peoples R China; 4.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Yansen,Jiang, Nan,Tan, Yuling,et al. Hardness fluctuations caused by annealing in Zr-based bulk metallic glasses via nanoindentation[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,31:2257-2265.Rp_Au:Li, Yansen, Zhang, Kun
APA	Li, Yansen,Jiang, Nan,Tan, Yuling,张坤,&魏炳忱.(2024).Hardness fluctuations caused by annealing in Zr-based bulk metallic glasses via nanoindentation.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,31,2257-2265.
MLA	Li, Yansen,et al."Hardness fluctuations caused by annealing in Zr-based bulk metallic glasses via nanoindentation".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 31(2024):2257-2265.