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Joining of Cf/SiC and stainless steel with (Cu–Ti)+C composite filler to obtain a stress-relieved and high-temperature resistant joint
- Source :
- Journal of Materials Research and Technology, Vol 12, Iss, Pp 2026-2041 (2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- In this study, to obtain a stress-relieved and high-temperature resistant joint of Cf/SiC composite and stainless steel at relatively lower brazing temperature, reaction composite-diffusion brazing with the mixed powders of Cu–15Ti alloy and C particles as filler material was used to join Cf/SiC composite and nickel-plated stainless steel. Results show that C particles reacted with Cu–Ti alloy filler with low melting point not only formed a composite joining layer which can relieve residual stress in the joints, but also formed a heat resistant (Cu)ss matrix due to the consumption of the melting point depressant element Ti. Meanwhile, the nickel plating diffused melting raising element Ni into the joining layer formed a (Cu,Ni)ss matrix with higher heat resistance, further improving the heat resistance of the joining layer, so the filler isothermally solidified in a short time during the brazing process. In addition, the nickel plating also prevented the formation of the brittle compound TiFe that may cause crack at the interface of joining layer/stainless steel. As a result, a stress-relieved joint with high-temperature resistance was obtained at relatively lower brazing temperature, and the maximum shear strength of the joint reached 233.4 ± 21.3 MPa, which is 51.3% higher than that brazed with Cu–15Ti alloy alone.
- Subjects :
- Materials science
Alloy
Composite number
chemistry.chemical_element
Mechanical properties
02 engineering and technology
engineering.material
01 natural sciences
Stainless steel
Biomaterials
Residual stress
Plating
0103 physical sciences
Brazing
Composite material
Microstructure
010302 applied physics
Mining engineering. Metallurgy
Metals and Alloys
TN1-997
Cf/SiC composite
Residual thermal stress
021001 nanoscience & nanotechnology
Surfaces, Coatings and Films
Nickel
Fracture
chemistry
Ceramics and Composites
engineering
Melting point
0210 nano-technology
Layer (electronics)
Subjects
Details
- Language :
- English
- ISSN :
- 22387854
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Research and Technology
- Accession number :
- edsair.doi.dedup.....f1c1573497f23f8e50482f56beae60f2