IMECH-IR  > 非线性力学国家重点实验室
Universal enthalpy-entropy compensation rule for the deformation of metallic glasses
Wang YJ(王云江); Zhang M; Liu L; Ogata S; Dai LH(戴兰宏); Wang, YJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationPHYSICAL REVIEW B
2015-11-23
Volume92Issue:17Pages:174118
ISSN1098-0121
AbstractThe thermodynamic compensation law describing an empirical linear relationship between activation enthalpy and activation entropy has seldom been validated for amorphous solids. Here molecular dynamics simulations reveal a well-defined enthalpy-entropy compensation rule in a metallic glass (MG) over a wide temperature and stress range, spanning the glass transition induced by temperature and/or stress. Experiments on other MGs reproduce this law, suggesting that it applies universally to amorphous solids, so we extend it from crystals to amorphous solids. In the glassy state, the compensation temperature is found to agree with the thermal glass transition temperature T-g; whereas in the supercooled liquid region, the compensation temperature matches similar to 1.4T(g), at which the diffusion kinetics start to feel the roughness of the free-energy surface.
DOI10.1103/PhysRevB.92.174118
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Indexed BySCI
Language英语
WOS IDWOS:000365505700003
WOS KeywordMOLECULAR-DYNAMICS ; STRAIN ; RANGE ; FLOW ; THERMODYNAMICS ; REJUVENATION ; RELAXATION ; DIFFUSION ; KINETICS ; BEHAVIOR
WOS Research AreaPhysics
WOS SubjectPhysics, Condensed Matter
Funding OrganizationThis work was financially supported by the NSFC (Grants No. 11132011, No. 11402269, and No. 11472287), the National Key Basic Research Program of China (Grant No. 2012CB937500), and the CAS/SAFEA International Partnership Program for Creative Research Teams. S.O. acknowledges support by KAKENHI Grants No. 23246025 [Scientific Research (A)], No. 22102003 (Scientific Research on Innovative Area), and No. 25630013 (Challenging Exploratory Research), and Elements Strategy Initiative for Structural Materials (ESISM).
DepartmentLNM冲击动力学与新型材料力学性能
Classification二类/Q1
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58374
Collection非线性力学国家重点实验室
Corresponding AuthorWang, YJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wang YJ,Zhang M,Liu L,et al. Universal enthalpy-entropy compensation rule for the deformation of metallic glasses[J]. PHYSICAL REVIEW B,2015,92(17):174118
APA 王云江,Zhang M,Liu L,Ogata S,戴兰宏,&Wang, YJ .(2015).Universal enthalpy-entropy compensation rule for the deformation of metallic glasses.PHYSICAL REVIEW B,92(17),174118.
MLA 王云江,et al."Universal enthalpy-entropy compensation rule for the deformation of metallic glasses".PHYSICAL REVIEW B 92.17(2015):174118.
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