Plasticity enhancement of high-entropy bulk metallic glasses by electroless plating with Ni-P amorphous films

被引：22

作者：

Cao, J. W. ^{[1
]}

Han, J. G. ^{[1
]}

Guo, Z. H. ^{[1
]}

Zhao, W. B. ^{[1
]}

Guo, Y. Q. ^{[1
]}

Xia, Z. H. ^{[1
]}

Qiao, J. W. ^{[1
,2
]}

机构：

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

[2] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 673卷

基金：

中国国家自然科学基金;

关键词：

Chemical plating; High-entropy alloys; Shear bands; Plasticity; Bulk metallic glasses; ALLOY; BEHAVIOR;

D O I：

10.1016/j.msea.2016.07.078

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Using chemical plating, Ni-P films were successfully coated on Ti20Zr20Hf20Be20Cu20 high-entropy bulk metallic glasses (HE-BMGs), and presented an enhancive adhesion as well as a higher deposition rate on account of the chemical pretreatment before electroless plating. With the coating, the plastic strain of the HE-BMGs is increased up to 5.7%, which is 3.2 times of 1.8% of the bare pillars. It shows that the adhesive coating with a thickness of 10 mu m leads to a plasticity enhancement of HE-BMGs via the dispersive impact of coating on the concentrated stress. In addition, the coating leads to more homogeneous regions where shear banding may take place and offers a preventible action for the rapid propagation of shear bands. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：141 / 147

页数：7

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