Elastic deformation behavior of CuZrAlNb metallic glass matrix composites with different crystallization degrees

被引：2

作者：

Liang, Wei-zhong ^{[1
]}

Ning, Zhi-liang ^{[2
,3
]}

Wang, Gang ^{[4
]}

Rang, Zhi-jie ^{[1
]}

Sun, Hai-chao ^{[2
,3
]}

Chen, Yong-sheng ^{[1
]}

机构：

[1] Hcilongjiang Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150022, Heilongjiang, Peoples R China

[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China

[3] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Heilongjiang, Peoples R China

[4] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2017年 / 24卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Metallic glass matrix; composite; Digital image correlation; technique; Elastic deformation; Strain field; MECHANICAL-PROPERTIES; HIGH-STRENGTH; DUCTILITY; STRAIN; PLASTICITY; FRACTURE; IMPROVEMENT;

D O I：

10.1016/S1006-706X(17)30065-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The room temperature brittleness has been a long standing problem in hulk metallic glasses realm. This has seriously limited the application potential of metallic glasses and their composites. The elastic deformation behaviors of metallic glass matrix composites are closely related to their plastic deformation states. The elastic deformation behaviors of Cui(8-x)Zri8Ali Nbr (x=0, 3 at. o) metallic glass matrix composites (MGMCs) with different crystallization degrees were investigated using an in -situ digital image correlation (DIC) technique during tensile process. With decreasing crystallization degree, MGMC exhibits obvious elastic deformation ability and an increased tensile fracture strength. The notable tensile elasticity is attributed to the larger shear strain heterogeneity emerging on the surface of the sample. This finding has implications for the development of MGMCs with excellent tensile properties.

引用

页码：430 / 434

页数：5

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