Resistance upset welding of Zr-based bulk metallic glasses

被引：13

作者：

Andreoli, Angelo Fernandes ^{[1
]}

Ponsoni, Jessica Bruna ^{[2
]}

Soares, Carolina ^{[1
]}

de Oliveira, Marcelo Falcao ^{[1
]}

Kiminami, Claudio Shyinti ^{[2
]}

机构：

[1] Univ Sao Paulo, Sao Carlos Sch Engn, Mat Sci & Engn Dept, Ave Joao Dagnone 1100, BR-13563120 Sao Carlos, SP, Brazil

[2] Univ Fed Sao Carlos, Mat Sci & Engn Dept, Rodovia Washington Luis,Km 235 CP 147, BR-13565905 Sao Carlos, SP, Brazil

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2018年 / 255卷

基金：

巴西圣保罗研究基金会;

关键词：

Bulk metallic glass (BMG); Amorphous metals; Crystallization; Welding; Resistance upset welding; ALLOYS;

D O I：

10.1016/j.jmatprotec.2018.01.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zr-based bulk metallic glasses represent an emerging important class of structural materials with interesting properties due to its amorphous nature. In this study, the structural and microstructural transformations to the heat-affected zone of a Zr-based bulk metallic glass welded by the resistance upset technology were investigated. X-ray diffraction, optical and scanning electron microscopy were used to characterize the base metal and the heat-affected zone. Vickers microhardness testing was performed to assess the mechanical response of the welded joints. The amorphous phase volume fraction measured along the welded joints shows no difference between the base metal and the heat-affected zone. It was possible to achieve a sound weld with no crystallization of the base metal.

引用

页码：760 / 764

页数：5