| 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.
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| 发表期刊 | PHYSICAL REVIEW B
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| 2015-11-23
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| 卷号 | 92期号:17页码:174118 |
| ISSN | 1098-0121
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| 摘要 | The 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. |
| DOI | 10.1103/PhysRevB.92.174118
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| URL | 查看原文
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| 收录类别 | SCI
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| 语种 | 英语
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| WOS记录号 | WOS:000365505700003
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| 关键词[WOS] | MOLECULAR-DYNAMICS
; STRAIN
; RANGE
; FLOW
; THERMODYNAMICS
; REJUVENATION
; RELAXATION
; DIFFUSION
; KINETICS
; BEHAVIOR
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| WOS研究方向 | Physics
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| WOS类目 | Physics, Condensed Matter
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| 项目资助者 | This 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).
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| 课题组名称 | LNM冲击动力学与新型材料力学性能
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| 论文分区 | 二类/Q1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/58374
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Wang, YJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
推荐引用方式
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.
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| 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.
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| 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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