Investigation of diffusion bonding mechanisms and joint properties of TZM and Zr-4 using Ti interlayer

被引：0

作者：

Guan, Xitong ^{[1
]}

Han, Zhijie ^{[1
]}

Ji, Songtao ^{[1
]}

Wu, Qi ^{[1
]}

Diao, Junhui ^{[1
]}

Gao, Yongguang ^{[1
]}

机构：

[1] China Inst Atom Energy, Beijing 102413, Peoples R China

来源：

MATERIALS LETTERS | 2025年 / 389卷

关键词：

TZM; Zr-4; Diffusion; Welding; Ti interlayer; Microstructure;

D O I：

10.1016/j.matlet.2025.138365

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The diffusion bonding of Titanium-Zirconium-Molybdenum Alloy (TZM) and Zirconium alloy (Zr-4) using a Ti interlayer was investigated. A solid solution transition layer (similar to 180 mu m) formed at the Zr-4/Ti interface, with Zr diffusing into Ti in a dendritic-like pattern. In contrast, the Ti/TZM interface exhibited a thinner (similar to 6 mu m), protrusion-like bonding layer due to Ti penetration. The joints bonded at 1020 degrees C exhibited the highest average tensile strength of 394.3 MPa. Fracture initiates at the Ti/TZM interface and propagates into the Ti interlayer, with ductile fracture on the Ti side and cleavage brittle fracture on the TZM side.

引用

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