Yanming He , Suqing Yao , Jialong Nie , Jiabing Liang , Huaxin Li , Lei Shi , Yuan Sun , Shengxuan Yang , Weijiang Guo , Chuanyang Lu , Jianguo Yang , Yafei Li
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引用次数: 0
Abstract
The Mo-14Re/Inconel 625 alloy joint brazed using traditional BNi-2 or Cu interlayers generally exhibited unsatisfactory bonding strength and cracks due to a large mismatch of coefficient of thermal expansion (CTE) between the base materials. In this study, Mo-14Re and Inconel 625 were brazed using two routes: 1) One-step brazing with Au-Ni paste achieved a shear strength up to 547.9 MPa, due to the predominance of high-strength and ductile Au(s,s) in the brazed joint; 2) Two-step brazing with Ti-Zr-Cu-Ni filler and Nb interlayer, which regulated the formation of the brittle intermetallic compounds and residual stress, produced a crack-free brazed joint.
期刊介绍：
Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences.
A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below.
The scope of the journal includes:
1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes).
2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis.
3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification.
4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.
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