Ag-Cu-Ti + AlN/Mo箔/Nb箔钎焊B4C/TC4接头的界面组织与力学性能

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Ceramic Technology Pub Date : 2025-01-08 DOI:10.1111/ijac.15019

Zhaoran Chen, Zhaoquan Zhang, Xuejian Liu

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引用次数: 0

摘要

采用Mo箔/ AgCuTi-AlN /Nb箔夹层复合填料增强了钛合金（TC4）与B4C陶瓷的结合。探讨了不同AlN含量和钎焊温度对接头组织和力学性能的影响。采用低膨胀系数的AlN掺杂改性提高了接头的强度，同时抑制了Mo和Nb箔的塑性变形。结果表明，AlN的掺入可以改善钎焊接头的组织，Mo/Nb箔具有良好的塑性，可以通过弹性变形适应较大的应变错配。最有效的体系为镀镍B4C + Mo箔+ AgCuTi-3 wt% AlN + Nb箔+ TC4，抗剪强度最高，约为109 MPa。与缺乏额外钎焊材料的系统相比，这代表了约1.5倍的抗剪强度增强。

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Interfacial microstructure and mechanical properties of B4C/TC4 brazed joints based on Ag–Cu–Ti + AlN/Mo foil/Nb foil

The bonding between titanium alloy (TC4) and B₄C ceramics was enhanced by employing a Mo foil/AgCuTi–AlN/Nb foil sandwich composite filler. The impact of varying AlN contents and brazing temperatures on the microstructure and mechanical attributes of the joints was explored. The joint strength was augmented through the utilization of AlN doping modification, which had a low expansion coefficient, and the plastic deformation of Mo and Nb foils. The findings revealed that AlN doping could refine the brazing organization of the joint, and the outstanding plasticity of Mo/Nb foils adapted to greater strain mismatches through elastic deformation. The most effective system emerged as nickel-plated B₄C + Mo foil + AgCuTi–3 wt% AlN + Nb foil + TC4, which achieved the highest shear strength of approximately 109 MPa. This represents an enhancement of about 1.5 times compared to the shear strength of the system lacking additional brazing material.

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来源期刊

International Journal of Applied Ceramic Technology 工程技术-材料科学：硅酸盐

CiteScore

3.90

自引率

9.50%

发文量

280

审稿时长

4.5 months

期刊介绍： The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas: Nanotechnology applications; Ceramic Armor; Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors); Ceramic Matrix Composites; Functional Materials; Thermal and Environmental Barrier Coatings; Bioceramic Applications; Green Manufacturing; Ceramic Processing; Glass Technology; Fiber optics; Ceramics in Environmental Applications; Ceramics in Electronic, Photonic and Magnetic Applications;