Improved plasticity of bulk metallic glasses by electrodeposition

被引：18

作者：

Meng, Mengmeng ^{[1
,2
]}

Gao, Zhipeng ^{[3
]}

Ren, Liwei ^{[1
,2
]}

Yang, Huijun ^{[1
,4
]}

Ma, Shengguo ^{[3
]}

Wang, Zhihua ^{[3
]}

Qiao, Junwei ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Lab Appl Phys & Mech Adv Mat, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China

[3] Taiyuan Univ Technol, Inst Appl Mech & Biomed Engn, Taiyuan 030024, Peoples R China

[4] Taiyuan Univ Technol, Res Inst Surface Engn, Taiyuan 030024, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 615卷

基金：

中国国家自然科学基金;

关键词：

Mechanical properties; Shear bands; Neutral layer; Plasticity; FRACTURE-TOUGHNESS; DEFORMATION; BEHAVIOR; FLOW;

D O I：

10.1016/j.msea.2014.07.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Zr52.5Cu17.9Ni14.6Al10Ti5 (Vit 105) bulk metallic glasses (BMGs) are coated with Ni films, costing different time for coating. The plasticity of coated Vit 105 BMGs is greatly improved. Experimental results reveal that coating thickness of Ni film is responsible for modifying the mechanical properties of BMG. For compressive tests, the corresponding plastic deformation of 3 hours-coating sample is 9%, which improves 7% than the uncoated sample. However, the compressive plasticity is reduced by 6 hours-coating with the thicker (100 mu m) film. For bending tests, bending strength and fracture deflection are increasingly improved with the coating thickness of Ni-layer. The deformation mechanisms are investigated in detail. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.

引用

页码：240 / 246

页数：7

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