Low temperature uniform plastic deformation of metallic glasses during elastic iteration

被引：30

作者：

Fujita, Takeshi ^{[1
]}

Wang, Zheng ^{[2
]}

Liu, Yanhui ^{[1
]}

Sheng, Howard ^{[3
]}

Wang, Weihua ^{[2
]}

Chen, Mingwei ^{[1
,4
]}

机构：

[1] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[3] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA

[4] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China

来源：

ACTA MATERIALIA | 2012年 / 60卷 / 09期

关键词：

Metallic glasses; Simulation; Plastic deformation; MECHANICAL-BEHAVIOR; SHEAR BANDS; STATE; FLOW;

D O I：

10.1016/j.actamat.2012.03.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Molecular dynamics simulations and dynamic mechanical analysis experiments were employed to investigate the mechanical behavior of metallic glasses subjected to iteration deformation in a nominally elastic region. It was found that cyclic deformation leads to the formation of irreversible shear transformation zones (STZs) and a permanent uniform strain. The initiation of STZs is directly correlated with the atomic heterogeneity of the metallic glass and the accumulated permanent strain has a linear relation with the number of STZs. This study reveals a new deformation mode and offers insights into the atomic mechanisms of STZ formation and low temperature uniform plastic deformation of metallic glasses. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：3741 / 3747

页数：7

共 50 条

[41] Coalescence and subsequent twinning of nanocrystals during deformation of CuZr-based metallic glasses: The grain size effect
Hajlaoui, K.
Alsaleh, N.
Alrasheedi, N. H.
Yavari, A. R.
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2017, 464 : 39 - 43
[42] Effect of strain rate and temperature on the plastic deformation behaviour of a bulk metallic glass composite
Singh, P. S.
Narayan, R. L.
Sen, Indrani
Hofmann, D. C.
Ramamurty, U.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 534 : 476 - 484
[43] Local structure evolutions of metallic glasses during shear deformation investigated by computer simulations
Yang, M. H.
Li, J. H.
Liu, B. X.
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 735 : 1023 - 1030
[44] Achieving high uniformity of the elastic strain energy accumulation rate during the serrated plastic flows of bulk metallic glasses
Tang, H. H.
Cai, Y. C.
Zuo, Q.
Chen, S. H.
Liu, R. P.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 736 : 269 - 275
[45] Deformation of Al85Y8Ni5Co2 Metallic Glasses under Cyclic Mechanical Load and Uniform Heating
Berezner, Arseniy D.
Fedorov, Victor A.
Zadorozhnyy, Mikhail Yu
Golovin, Igor S.
Louzguine-Luzgin, Dmitri, V
METALS, 2021, 11 (06)
[46] High temperature deformation of bulk metallic glasses - Thermoforming and elaboration of multimaterials
Gravier, S.
Kapeiski, G.
Suery, M.
Blandin, J. -J.
MATERIAUX & TECHNIQUES, 2012, 100 (02): : 127 - 136
[47] Revealing localized plastic flow in apparent elastic region before yielding in metallic glasses
Zhao, L. Z.
Xue, R. J.
Li, Y. Z.
Wang, W. H.
Bai, H. Y.
JOURNAL OF APPLIED PHYSICS, 2015, 118 (24)
[48] Internal stresses induced by plastic shear deformation of Zr-(Cu,Ag)-Al bulk metallic glasses
Afonin, G. V.
Khonik, S. V.
Konchakov, R. A.
Kobelev, N. P.
Kaloyan, A. A.
Khonik, V. A.
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2012, 358 (02) : 220 - 223
[49] Effect of cooling rate on plastic deformation of Zr-based bulk metallic glasses
Chunyan Li a
ProgressinNaturalScience:MaterialsInternational, 2012, 22 (01) : 21 - 25
[50] Correlation between structural heterogeneity and plastic deformation for phase separating FeCu metallic glasses
Peng, Chuan-Xiao
Song, Kai-Kai
Wang, Li
Sopu, Daniel
Pauly, Simon
Eckert, Jurgen
SCIENTIFIC REPORTS, 2016, 6

← 1 2 3 4 5 →