Microstructure and mechanical properties of C/C composite/Ti6Al4V joints with a Cu/TiCuZrNi composite brazing alloy

Xinrui Song; Hejun Li; Valentina Casalegno; Milena Salvo; Monica Ferraris; Xierong Zeng

doi:10.1016/j.ceramint.2016.01.026

Microstructure and mechanical properties of C/C composite/Ti₆Al₄V joints with a Cu/TiCuZrNi composite brazing alloy

Xinrui Song, Hejun Li, Valentina Casalegno, Milena Salvo, Monica Ferraris, Xierong Zeng

School of Materials Sience and Engineering

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

61 Scopus citations

Abstract

C/C composites and Ti₆Al₄V sheets were joined using a novel Cu/TiCuZrNi composite braze and the effect of Cu foil thickness on the microstructure and mechanical properties of the joints were investigated. A composite joining material, consisting of a TiC particle reinforced brazing alloy formed in situ during the brazing process was obtained. Before the joining process, the C/C composite surface was modified by solid state reaction with chromium to form a chromium carbide coating. This carbide reaction layer can react with the Ti-based brazing alloy and form evenly distributed TiC particles. The maximum apparent shear strength of as-received joint was 39±8.5 MPa obtained by using a 40 μm thick Cu foil together with the TiCuZrNi alloy; this value was 70% higher than the mechanical strength obtained for joints brazed with the TiCuZrNi alloy only.

Original language	English
Pages (from-to)	6347-6354
Number of pages	8
Journal	Ceramics International
Volume	42
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2016.01.026
State	Published - 1 Apr 2016

Keywords

Brazing
C/C composites
Interface
Joints
Strength

Access to Document

10.1016/j.ceramint.2016.01.026

Cite this

@article{f2351387d2544381b5be2e9dbc581a6b,

title = "Microstructure and mechanical properties of C/C composite/Ti6Al4V joints with a Cu/TiCuZrNi composite brazing alloy",

abstract = "C/C composites and Ti6Al4V sheets were joined using a novel Cu/TiCuZrNi composite braze and the effect of Cu foil thickness on the microstructure and mechanical properties of the joints were investigated. A composite joining material, consisting of a TiC particle reinforced brazing alloy formed in situ during the brazing process was obtained. Before the joining process, the C/C composite surface was modified by solid state reaction with chromium to form a chromium carbide coating. This carbide reaction layer can react with the Ti-based brazing alloy and form evenly distributed TiC particles. The maximum apparent shear strength of as-received joint was 39±8.5 MPa obtained by using a 40 μm thick Cu foil together with the TiCuZrNi alloy; this value was 70% higher than the mechanical strength obtained for joints brazed with the TiCuZrNi alloy only.",

keywords = "Brazing, C/C composites, Interface, Joints, Strength",

author = "Xinrui Song and Hejun Li and Valentina Casalegno and Milena Salvo and Monica Ferraris and Xierong Zeng",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd and Techna Group S.r.l.",

year = "2016",

month = apr,

day = "1",

doi = "10.1016/j.ceramint.2016.01.026",

language = "英语",

volume = "42",

pages = "6347--6354",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "5",

}

TY - JOUR

T1 - Microstructure and mechanical properties of C/C composite/Ti6Al4V joints with a Cu/TiCuZrNi composite brazing alloy

AU - Song, Xinrui

AU - Li, Hejun

AU - Casalegno, Valentina

AU - Salvo, Milena

AU - Ferraris, Monica

AU - Zeng, Xierong

PY - 2016/4/1

Y1 - 2016/4/1

N2 - C/C composites and Ti6Al4V sheets were joined using a novel Cu/TiCuZrNi composite braze and the effect of Cu foil thickness on the microstructure and mechanical properties of the joints were investigated. A composite joining material, consisting of a TiC particle reinforced brazing alloy formed in situ during the brazing process was obtained. Before the joining process, the C/C composite surface was modified by solid state reaction with chromium to form a chromium carbide coating. This carbide reaction layer can react with the Ti-based brazing alloy and form evenly distributed TiC particles. The maximum apparent shear strength of as-received joint was 39±8.5 MPa obtained by using a 40 μm thick Cu foil together with the TiCuZrNi alloy; this value was 70% higher than the mechanical strength obtained for joints brazed with the TiCuZrNi alloy only.

AB - C/C composites and Ti6Al4V sheets were joined using a novel Cu/TiCuZrNi composite braze and the effect of Cu foil thickness on the microstructure and mechanical properties of the joints were investigated. A composite joining material, consisting of a TiC particle reinforced brazing alloy formed in situ during the brazing process was obtained. Before the joining process, the C/C composite surface was modified by solid state reaction with chromium to form a chromium carbide coating. This carbide reaction layer can react with the Ti-based brazing alloy and form evenly distributed TiC particles. The maximum apparent shear strength of as-received joint was 39±8.5 MPa obtained by using a 40 μm thick Cu foil together with the TiCuZrNi alloy; this value was 70% higher than the mechanical strength obtained for joints brazed with the TiCuZrNi alloy only.

KW - Brazing

KW - C/C composites

KW - Interface

KW - Joints

KW - Strength

UR - http://www.scopus.com/inward/record.url?scp=85017328965&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2016.01.026

DO - 10.1016/j.ceramint.2016.01.026

M3 - 文章

AN - SCOPUS:85017328965

SN - 0272-8842

VL - 42

SP - 6347

EP - 6354

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Microstructure and mechanical properties of C/C composite/Ti₆Al₄V joints with a Cu/TiCuZrNi composite brazing alloy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this