Microstructure and mechanical properties of C/C composite joint brazed with Ni-based filler

He li PENG; Yong xin ZHANG; Xu CHEN; Hong qiang ZHANG; Jun liang XUE; Wei GUO

doi:10.1016/S1003-6326(22)65843-6

Microstructure and mechanical properties of C/C composite joint brazed with Ni-based filler

He li PENG
, Yong xin ZHANG
, Xu CHEN
, Hong qiang ZHANG^*
, Jun liang XUE
, Wei GUO

^*Corresponding author for this work

School of Mechanical Engineering and Automation

Shanghai Spaceflight Precision Machinery Institute
Shanghai Engineering Technology Research Center of Near-net Shape Forming for Metallic Materials
Beihang University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The novel Ni-based brazing filler was used to join C/C composites. When brazing temperature increased from 1080 to 1100 °C, the wetting angle decreased from 23° to 14°, and the brazing filler had good wettability on the surface of C/C composites. The brazing seam of the brazed joint consisted of Ni(s,s) and Cr₃C₂ phases. As brazing temperature increased, lots of Cr₃C₂ phases were generated at the bonding interface, and the thick reaction layer was formed. When brazing temperature was 1120 °C, the shear strength of C/C joint reached the maximum value of 31.5 MPa. The fracture path extended in the C/C matrix close to the bonding interface.

Original language	English
Pages (from-to)	927-934
Number of pages	8
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	32
Issue number	3
DOIs	https://doi.org/10.1016/S1003-6326(22)65843-6
State	Published - Mar 2022

Keywords

C/C composites
brazing
microstructure
shear strength

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10.1016/S1003-6326(22)65843-6

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title = "Microstructure and mechanical properties of C/C composite joint brazed with Ni-based filler",

abstract = "The novel Ni-based brazing filler was used to join C/C composites. When brazing temperature increased from 1080 to 1100 °C, the wetting angle decreased from 23° to 14°, and the brazing filler had good wettability on the surface of C/C composites. The brazing seam of the brazed joint consisted of Ni(s,s) and Cr3C2 phases. As brazing temperature increased, lots of Cr3C2 phases were generated at the bonding interface, and the thick reaction layer was formed. When brazing temperature was 1120 °C, the shear strength of C/C joint reached the maximum value of 31.5 MPa. The fracture path extended in the C/C matrix close to the bonding interface.",

keywords = "C/C composites, brazing, microstructure, shear strength",

author = "PENG, \{He li\} and ZHANG, \{Yong xin\} and Xu CHEN and ZHANG, \{Hong qiang\} and XUE, \{Jun liang\} and Wei GUO",

note = "Publisher Copyright: {\textcopyright} 2022 The Nonferrous Metals Society of China",

year = "2022",

month = mar,

doi = "10.1016/S1003-6326(22)65843-6",

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journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

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T1 - Microstructure and mechanical properties of C/C composite joint brazed with Ni-based filler

AU - PENG, He li

AU - ZHANG, Yong xin

AU - CHEN, Xu

AU - ZHANG, Hong qiang

AU - XUE, Jun liang

AU - GUO, Wei

PY - 2022/3

Y1 - 2022/3

N2 - The novel Ni-based brazing filler was used to join C/C composites. When brazing temperature increased from 1080 to 1100 °C, the wetting angle decreased from 23° to 14°, and the brazing filler had good wettability on the surface of C/C composites. The brazing seam of the brazed joint consisted of Ni(s,s) and Cr3C2 phases. As brazing temperature increased, lots of Cr3C2 phases were generated at the bonding interface, and the thick reaction layer was formed. When brazing temperature was 1120 °C, the shear strength of C/C joint reached the maximum value of 31.5 MPa. The fracture path extended in the C/C matrix close to the bonding interface.

AB - The novel Ni-based brazing filler was used to join C/C composites. When brazing temperature increased from 1080 to 1100 °C, the wetting angle decreased from 23° to 14°, and the brazing filler had good wettability on the surface of C/C composites. The brazing seam of the brazed joint consisted of Ni(s,s) and Cr3C2 phases. As brazing temperature increased, lots of Cr3C2 phases were generated at the bonding interface, and the thick reaction layer was formed. When brazing temperature was 1120 °C, the shear strength of C/C joint reached the maximum value of 31.5 MPa. The fracture path extended in the C/C matrix close to the bonding interface.

KW - C/C composites

KW - brazing

KW - microstructure

KW - shear strength

UR - https://www.scopus.com/pages/publications/85127344093

U2 - 10.1016/S1003-6326(22)65843-6

DO - 10.1016/S1003-6326(22)65843-6

M3 - 文章

AN - SCOPUS:85127344093

SN - 1003-6326

VL - 32

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JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - 3

ER -

Microstructure and mechanical properties of C/C composite joint brazed with Ni-based filler

Abstract

Keywords

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