Finite element simulation and experimental investigation of forming micro-gear with Zr-Cu-Ni-Al bulk metallic glass

被引：27

作者：

Wang, Dong ^{[2
]}

Shi, Teilin ^{[1
]}

Pan, Jie ^{[3
]}

Liao, Guanglan ^{[2
]}

Tang, Zirong ^{[1
]}

Liu, Lin ^{[3
]}

机构：

[1] Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China

[3] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Mould Technol, Wuhan 430074, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2010年 / 210卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Finite element simulation; Micro-gear; Metallic glass; SUPERCOOLED LIQUID REGION; AMORPHOUS ALLOY; DEFORMATION; BEHAVIOR;

D O I：

10.1016/j.jmatprotec.2009.12.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bulk metallic glasses exhibit Some Unique physical properties as compared to their corresponding crystalline alloys Due to the superplasticity by behaving like a Newtonian fluid in their supercooled liquid region. the bulk metallic glasses can be used to make high strength microparts by net-shape forming In this paper. the compressive tests of Zr-Cu-Ni-Al metallic glass are performed with different strain rates at a temperature of 683 K According to the experimental results. the forming evolution Of a metallic glass micro-gear IS Simulated using a finite element Simulation software DEFORM 3D. and the forming load is predicted at different processing parameters Meanwhile, the filling stages of bulk metallic glass in the micro-gear mold cavity are investigated by finite element simulation and experiment The predicted workpiece geometry shows good agreement with experimental result The forming experiments for micro-gear Of Zr-Cu-Ni-Al metallic glass are carried out by hot embossing process. and the amorphous micro-gears are obtained Successfully It is found that the finite element simulation results are in reasonable agreement with the experimental observation (C) 2009 Elsevier B.V. All rights reserved

引用

页码：684 / 688

页数：5

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