Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass

doi:10.1016/j.scriptamat.2022.115056

IMR OpenIR

	Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass
	Zhang, S. Y.1,2; Zhou, W. H.1,2; Song, L. J.3,4,5; Huo, J. T.3,4,5; Yao, J. H.1; Wang, J. Q.3,4,5; Li, Y.1
通讯作者	Li, Y.(liyi@imr.ac.cn)
	2023-01-15
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	223 页码:5
摘要	The mechanical properties of amorphous materials are closely related to their energy states (enthalpy). Usually, a higher energy state corresponds to larger plasticity and lower hardness. Here, we explore the correlation between the enthalpy and hardness of rejuvenated Au-based metallic glasses (MGs). We found that the rejuvenated MG with a high-energy state presents a hardness variation trend different from before, i.e. the hardness increases instead of keeping on decreasing with increasing enthalpy when the enthalpy is higher than an intermedia value. It is revealed that both the reactivations of 13- and alpha-relaxation are beneficial to increasing the enthalpy but show opposite effect on the hardness. This study shows that this decoupling may be originated from the beginning of the reactivation of alpha-relaxation. Our work provides new insights into designing MGs with excellent mechanical properties by rejuvenating relaxed MGs via the furthest reactivation of 13-relaxation and avoiding reactivation of alpha-relaxation.
关键词	Metallic glass Rejuvenation ?-relaxation Differential scanning calorimetry 13-relaxation
资助者	Shenyang Na-tional Laboratory for Materials Science ; National Natural Science Foundation of China
DOI	10.1016/j.scriptamat.2022.115056
收录类别	SCI
语种	英语
资助项目	Shenyang Na-tional Laboratory for Materials Science ; National Natural Science Foundation of China ; [52231006]
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:000877103100006
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176750
专题	中国科学院金属研究所
通讯作者	Li, Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China 4.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techno, Ningbo 315201, Peoples R China 5.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, S. Y.,Zhou, W. H.,Song, L. J.,et al. Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass[J]. SCRIPTA MATERIALIA,2023,223:5.
APA	Zhang, S. Y..,Zhou, W. H..,Song, L. J..,Huo, J. T..,Yao, J. H..,...&Li, Y..(2023).Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass.SCRIPTA MATERIALIA,223,5.
MLA	Zhang, S. Y.,et al."Decoupling between enthalpy and mechanical properties in rejuvenated metallic glass".SCRIPTA MATERIALIA 223(2023):5.