Compound connection mechanism of Al2O3 ceramic and TC4 Ti alloy with different joining modes

Yan Zhang; YanKun Chen; JianPing Zhou; DaQian Sun; HongMei Li

doi:10.1038/s41598-021-00815-4

Scientific Reports (Oct 2021)

Compound connection mechanism of Al2O3 ceramic and TC4 Ti alloy with different joining modes

Yan Zhang,
YanKun Chen,
JianPing Zhou,
DaQian Sun,
HongMei Li

Affiliations

Yan Zhang: School of Mechanical Engineering, Xinjiang University
YanKun Chen: School of Mechanical Engineering, Xinjiang University
JianPing Zhou: School of Mechanical Engineering, Xinjiang University
DaQian Sun: Key Laboratory of Automobile Materials, School of Materials Science and Engineering, Jilin University
HongMei Li: Key Laboratory of Automobile Materials, School of Materials Science and Engineering, Jilin University

DOI: https://doi.org/10.1038/s41598-021-00815-4
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 6

Abstract

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Abstract In this paper, laser welding-brazing of TC4 Titanium (Ti) alloy and Al2O3 ceramic dissimilar material was carried. The results showed that the Ti alloy and Al2O3 were joined by melting filler metal when the laser was concentrated in the Ti alloy side of the joint. The joint with one fusion weld and one brazed weld separated by remaining unmelted Ti alloy. Laser beam offset the Ti alloy 1.5 mm, Ti alloy would not be completely melted in joint. Through heat conduction, the filler metal melted occurred at the Ti-ceramic interface. A brazed weld was formed at the Ti-ceramic interface with the main microstructure of β-CuZn + Ti2Zn3, β-CuZn and Al2Cu + β-CuZn. The joint fractured at the brazed weld with the maximum tensile strength of 169 MPa.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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