Prevention of Crack Formation in Electron-Beam Welded Joints of Dissimilar Metal Compounds (TiNi/Ti6Al4V)

Zilin Zhan; Yuhua Chen; Shanlin Wang; Yongde Huang; Yuqing Mao

doi:10.1007/s11041-019-00432-z

Prevention of Crack Formation in Electron-Beam Welded Joints of Dissimilar Metal Compounds (TiNi/Ti6Al4V)

Authors: Zhan Z.¹, Chen Y.¹, Wang S.¹, Huang Y.¹, Mao Y.¹
Affiliations:
1. National Defense Key Disciplines Laboratory of Light Alloy Processing Science and Technology of Nanchang
Issue: Vol 61, No 5-6 (2019)
Pages: 373-378
Section: Article
URL: https://journals.rcsi.science/0026-0673/article/view/236657
DOI: https://doi.org/10.1007/s11041-019-00432-z
ID: 236657

Cite item

Full Text

Open Access
Restricted Access

Access granted
Restricted Access

Subscription Access

Abstract
About the authors
References
Supplementary files
Statistics

Abstract

The microstructure, mechanical properties and element distribution in an electron-beam welded joint of dissimilar metal compounds (TiNi/Ti6Al4V) have been studied. To prevent crack formation, niobium was introduced to the compound as a filler material. The welding line preheating and electron-beam deviation toward the Ti6Al4V alloy were used. It was shown that fracturing of the welded joint occurs within the fusion zone and is characterized by a mixed ductile-brittle behavior.