Zr-Co-Al bulk metallic glass composites containing B2 ZrCo via rapid quenching and annealing

被引：22

作者：

Chen, Yu ^{[1
,3
,4
]}

Tang, Chunguang ^{[1
]}

Laws, Kevin ^{[1
]}

Zhu, Qiang ^{[2
]}

Ferry, Michael ^{[1
]}

机构：

[1] Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

[2] Univ New South Wales, Elect Microscopy Unit, Sydney, NSW 2052, Australia

[3] Zhejiang Univ, State Key Lab Silicon Mat, Lab New Struct Mat, ICNSM, Hangzhou 310027, Peoples R China

[4] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 820卷 / 820期

基金：

澳大利亚研究理事会;

关键词：

Zr-Co-Al; Metallic glass composite; Rapid quenching; WORK-HARDENING BEHAVIOR; MECHANICAL-PROPERTIES; ENHANCED PLASTICITY; MATRIX COMPOSITES; HEAT-TREATMENT; MICROSTRUCTURE; CRYSTALLIZATION; DUCTILITY; ALLOYS; DEFORMATION;

D O I：

10.1016/j.jallcom.2019.153079

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

As a promising remedy for overcoming the limited ductility and work softening of bulk metallic glasses (BMGs), BMG composites incorporating a B2 crystalline phase have attracted considerable attention. Here, we explore the formation of Zr-Co-Al BMG composites by quenching alloys Zr55Co31Al14, Zr54.5Co33.5Al12, Zr53.5Co36.5Al10, Zr52.5Co37.5Al10,( )and Zr43Co43Al14. We found the first alloy fully amorphous whereas the fifth was fully crystallized upon quenching. The other three were quenched to generate composite structures, with a higher fraction of B2 ZrCo phase with increasing Co/Zr ratio and decreasing Al content. For comparison, the formation of B2 ZrCo in annealed Zr55Co31Al14 was also studied. For both approaches the influence of crystalline phases on hardness was examined. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：7

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