Coalescence and subsequent twinning of nanocrystals during deformation of CuZr-based metallic glasses: The grain size effect

被引：8

作者：

Hajlaoui, K. ^{[1
,2
]}

Alsaleh, N. ^{[2
]}

Alrasheedi, N. H. ^{[2
]}

Yavari, A. R. ^{[3
]}

机构：

[1] Univ Sousse, LMS, ENISo, Technopole Sousse, Sousse, Tunisia

[2] Al Imam Mohammad Ibn Saud Islamic Univ IMSIU, Othman Ibn Affan St,POB 5701, Riyadh 11432, Saudi Arabia

[3] Inst Natl Polytech Grenoble, SIMaP LTPCM, F-38402 St Martin Dheres, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2017年 / 464卷

关键词：

Metallic glasses; Deformation; Nanocrystals; Coalescence; Twinning; Grain size; SHEAR BANDS; NANOPARTICLE DISPERSIONS; PLASTICITY; DUCTILITY; MICROSTRUCTURE; MECHANISM; ALLOYS; FLOW;

D O I：

10.1016/j.jnoncrysol.2017.03.019

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report in-situ HRTEM observations that reveal subsequent structural events occurring during deformation of CuZr-based metallic glass. During loading, B2-CuZr nanocrystals precipitate and growth in the amorphous matrix, and consecutively crystals larger than 15 nm to 20 nm undergo twinning. Results underscore a transition from a deformation mechanism controlled by shear banding in glassy matrix to twinning and dislocations gliding in precipitated and coalesced crystals. These observations provide guidance for designing metallic glasses with twin structures that improve plasticity. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：39 / 43

页数：5

共 50 条

[31] Effect of initial grain size on evolved ferrite grain size during high Z large strain deformation
Murty, S. V. S.
Torizuka, S.
Nagai, K.
Kitai, T.
Kogo, Y.
MATERIALS SCIENCE AND TECHNOLOGY, 2010, 26 (07) : 879 - 885
[32] Effect of cooling rate on plastic deformation of Zr-based bulk metallic glasses
Li, Chunyan
Kou, Shengzhong
Zhao, Yanchun
Liu, Guangqiao
Ding, Yutian
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, 2012, 22 (01) : 21 - 25
[33] Effect of sample size and cooling rate on the plastic deformation behavior of bulk metallic glasses: A comparative study
Yang, H. D.
Zhang, L. B.
Zhang, J. S.
Tang, H. H.
Chen, S. H.
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2022, 589
[34] From metallic glasses to nanocrystals: Molecular dynamics simulations on the crossover from glass-like to grain-boundary-mediated deformation behaviour
Brink, Tobias
Albe, Karsten
ACTA MATERIALIA, 2018, 156 : 205 - 214
[35] Effect of cast temperature, size and annealing condition on the serrated flow during nano-indentation of Zr-based bulk metallic glasses
Venkatesh, V.
Gouthama
Mondal, K.
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 692 : 745 - 757
[36] The effect of grain size on storage and distribution of defects at plastic deformation of polycrystalline FCC alloys based on copper
Koneva, N. A.
Kozlov, E. V.
Trishkina, L. I.
KOVOVE MATERIALY-METALLIC MATERIALS, 2015, 53 (04): : 207 - 211
[37] Effect of Specimen Size on Internal Shear Bands in Pd-based Bulk Metallic Glasses
Liu Li
Song He
Zhao Xiangjin
Liu Wei
RARE METAL MATERIALS AND ENGINEERING, 2015, 44 (06) : 1522 - 1526
[38] Effect of specimen size on internal shear bands in Pd-based bulk metallic glasses
Liu, Li
Song, He
Zhao, Xiangjin
Liu, Wei
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2015, 44 (06): : 1522 - 1526
[39] Size effect and anisotropy in cold rolled Zr-base bulk metallic glasses during nanoindentation
Gunti, Abhilash
Das, Jayanta
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2022, 593
[40] Effect of Grain Size and Grain Orientation on Dislocations Structure in Tensile Strained TWIP Steel During Initial Stages of Deformation
Dini, Ghasem
Ueji, Rintaro
STEEL RESEARCH INTERNATIONAL, 2012, 83 (04) : 374 - 378

← 1 2 3 4 5 →