Phase separation process preventing thermal embrittlement of a Zr-Cu-Fe-Al bulk metallic glass

被引：33

作者：

Louzguine-Luzgin, D. V. ^{[1
,2
]}

Jiang, J. ^{[3
]}

Bazlov, A. I. ^{[4
]}

Zolotorevzky, V. S. ^{[4
]}

Mao, H. ^{[5
,6
]}

Ivanov, Yu P. ^{[7
]}

Greer, A. L. ^{[1
,7
]}

机构：

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

[2] Natl Inst Adv Ind Sci & Technol, Math Adv Mat OIL, Sendai, Miyagi 9808577, Japan

[3] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808577, Japan

[4] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia

[5] KTH Royal Inst Technol, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden

[6] Thermo Calc Software AB, Rasundavagen 18, S-16967 Solna, Sweden

[7] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB3 0FS, England

来源：

SCRIPTA MATERIALIA | 2019年 / 167卷

基金：

欧洲研究理事会;

关键词：

Bulk metallic glass; Mechanical properties; Relaxation; Phase separation; Transmission electron microscopy; STRUCTURAL RELAXATION; DEFORMATION-BEHAVIOR; THERMODYNAMIC ASSESSMENT; MECHANICAL-PROPERTIES; SUPERCOOLED LIQUID; AMORPHOUS-PHASE; FORMING ABILITY; SHEAR BANDS; ALLOYS; MICROSTRUCTURE;

D O I：

10.1016/j.scriptamat.2019.03.030

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The structural changes and mechanical properties of a Zr63Cu22Fe5Al10 bulk metallic glass (BMG), and a Zr63Cu27Al10 one made for comparison, were studied on annealing below the crystallization temperature. The phase composition of the samples was studied by conventional X-ray diffractometry and high-resolution transmission electron microscopy including the atomic-scale elemental mapping. The samples were mechanically tested in compression. The Zr63Cu22Fe5Al10 bulk metallic glass shows a high strength and good deformability at room temperature both in the as-cast state and after prolonged structural relaxation below the crystallization temperature. The reasons for such behavior are discussed in the present work. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：31 / 36

页数：6

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