Zr55Al10Ni5Cu30块体金属玻璃的摩擦焊焊接

金属学报

2009, Vol. 45

Issue (5): 620-624

论文

本期目录 | 过刊浏览

Zr₅₅Al₁₀Ni₅Cu₃₀块体金属玻璃的摩擦焊焊接

覃作祥^1;2;王小京¹;张海峰¹;王中光¹;胡壮麒¹

1. 中国科学院金属研究所沈阳材料科学国家(联合)实验室; 沈阳 110016
2. 大连交通大学材料科学与工程学院; 大连 116028

FRICTION WELDING OF Zr₅₅Al₁₀Ni₅Cu₃₀BULK METALLIC GLASS

QIN Zuoxiang ^1;2; WANG Xiaojing ¹; ZHANG Haifeng ¹; WANG Zhongguang ¹; HU Zhuangqi¹

1. Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016
2. School of Materials Science and Engineering; Dalian Jiaotong University; Dalian 116028

引用本文:

覃作祥王小京张海峰王中光胡壮麒. Zr₅₅Al₁₀Ni₅Cu₃₀块体金属玻璃的摩擦焊焊接[J]. 金属学报, 2009, 45(5): 620-624.
, , , , . FRICTION WELDING OF Zr₅₅Al₁₀Ni₅Cu₃₀BULK METALLIC GLASS[J]. Acta Metall Sin, 2009, 45(5): 620-624.

全文: PDF(594 KB)

摘要:

采用摩擦焊对Zr₅₅Al₁₀Ni₅Cu₃₀块体金属玻璃进行了焊接, 当焊机主轴转速为4.0×10³---5.0×10³ r/min, 摩擦压力为80---100 MPa, 摩擦时间为0.2---0.4 s, 顶锻压力和保压时间分别为200 MPa和2 s时, 能够成功实施Zr₅₅Al₁₀Ni₅Cu₃₀金属玻璃的焊接. 用SEM, XRD和TEM观察分析未检测到晶化相, 焊缝处金属仍保持非晶状态. 金属玻璃的塑性在玻璃转变点T_g附近随温度变化很大, 在T_g以上具有良好的塑性变形能力, 这是实施摩擦焊焊接的重要基础.

关键词 ：块体金属玻璃, 摩擦焊, Zr₅₅Al₁₀Ni₅Cu₃₀

Abstract：

As a new kind of engineering material, the metallic glass can be used widely due to its excellent properties such as high strength, hardness and elastic energy and low corrosion resistance. The size of metallic glasses is generally small, which is the main limitation for their application. How to prepare a larger size metallic glass becomes one of main targets in metallic glasses research. To prepare larger size metallic glasses, one method is to optimize their chemical compositions, and another is to join small size metallic glasses together by welding. In this paper, the Zr₅₅Al₁₀Ni₅Cu₃₀ bulk metallic glass (BMG) has been successfully jointed by friction welding under the conditions of rotational speed from 4×10³ to 5×10³ r/min, friction pressure from 80 to 100 MPa, friction time from 0.2 to 0.4 s, upsetting pressure 200 MPa and upsetting time 2 s. The welded joint has been examined using SEM, XRD and TEM, and it is proved that the welded zone still keeps an amorphous structure. The plasticity of this metallic glass has strong temperature sensitivity near the glass transition temperature T_g. Above T_g, the metallic glass possesses a good plasticity which is necessary for friction welding of metallic glasses.

Key words： bulk metallic glass friction welding Zr₅₅Al₁₀Ni₅Cu₃₀

收稿日期: 2008-01-24

ZTFLH:

TG139

基金资助:

国家高技术研究发展计划项目2006CB605201以及国家自然科学基金项目50825402和50731005资助

作者简介: 覃作祥, 男, 1965年生, 博士生

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https://www.ams.org.cn/CN/ 或 https://www.ams.org.cn/CN/Y2009/V45/I5/620

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