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Insight into interfacial microstructural evolution and mechanical properties of B4C-TiB2/TA15 dissimilar joints brazed by AgCu filler

delete2026-08-04
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PRE
AI
Y
Yang Jiao
W
Wei FU *
J
Junmiao Shi
W
Wenlong Zhou
S
Shengpeng Hu
X
Xiajun Guo
Z
Zhuolin Li
X
Xiaoguo Song
DOI：10.1016/j.matchar.2026.116889delete
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Abstract

Abstract

En 中文
• Reliable brazing of B₄C‑TiB₂ ceramic and TA15 alloy is achieved using AgCu filler; the typical interfacial sequence of the joint is identified. • The shear strength of brazed joints increased first and then declined with rising brazing temperature, peaking at 67.58 MPa (880 °C, 10 min). • Elevated temperature accelerates elemental interdiffusion, thickens brittle reaction layers; all fractures locate at ceramic‑braze interface. • Four‑stage interfacial evolution is clarified; insufficient or excessive interfacial reaction degrades mechanical performance.
Keywords:
B4C-TiB2 ceramics
TA15 titanium alloy
AgCu filler
Microstructure evolution
Mechanical property

Journal

Materials Characterization cover
Materials Characterization
IF:
5.5
Papers:
1.1W
Citations:
3.4W

Organization

H
Harbin Institute of Technology
Scholars:
1.1W
Papers: 3.8K
Citations: 8.5W
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