Mechanical properties and microstructure evolution of C<sub>f</sub>/SiC–Nb joints using Ti-base laminated foil-Reference-Cited by-同舟云学术

Mechanical properties and microstructure evolution of C_f/SiC–Nb joints using Ti-base laminated foil

Published:2022-11-29 Issue:12 Volume:64 Page:1818-1825
ISSN:0025-5300
Container-title:Materials Testing
language:en
Short-container-title:

Author:

Chu JianRu¹,Jiang Xiaosong²^ORCID,Sun Hongliang³

Affiliation:

1. School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu , Sichuan , China

2. Southwest Jiaotong University , Chengdu 610031 , China

3. Southwest Jiaotong University , Chengdu , Sichuan , China

Abstract

Abstract A self-designed Ti–Zr–Cu composite foil was used as an interlayer and vacuum brazed to achieve a heterogeneous joint between the Cf/SiC composite and Nb, resulting in a well-bonded, defect-free joint with a typical interfacial microstructure of Cf/SiC/(Ti, Zr)C/(Ti, Zr)2Cu + Zr2Cu/Ti2Cu + (Ti, Nb)ss/Nb. The effects of different experimental temperatures on the microstructural evolution of the joints and the mechanical properties of the joints were investigated, and the formation mechanism of the joint interface was analyzed. The results show that the microscopic morphology and mechanical properties of the joint interface change significantly with increasing experimental temperature. As the temperature increased to 1080 °C, the shear strength increased by 150.6% compared to 1060 °C (78.09 MPa) and reached a maximum value of 195.72 MPa, but further warming to 1100 °C (144.25 MPa) resulted in a 26.3% decrease in shear strength, with the best joint achieved at 1080 °C.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1515/mt-2022-0229/pdf

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