Brazing mechanisms of the Ti2AlC joints using a pure Al filler metal

Chengjie Lu; Liangbo Sun; Jie Zhang; Qin Qi; Gilles Hug

doi:10.1016/j.ceramint.2017.03.113

Brazing mechanisms of the Ti₂AlC joints using a pure Al filler metal

Chengjie Lu
, Liangbo Sun
, Jie Zhang^*
, Qin Qi
, Gilles Hug

^*Corresponding author for this work

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

14 Scopus citations

Abstract

Brazing of Ti₂AlC ceramics has been successfully performed using a pure Al filler metal, in the temperature range 1023 K–1173 K and with holding time ranging from 0 to 30 min. The microstructure of the Ti₂AlC joints was studied, and the mechanical properties of the joints were evaluated by shear strength test. It is observed that the Al filler has weak effect on the stability of Ti₂AlC substrate, and only a small amount of decomposition products including the TiC_x and TiAl₃ compounds can be observed in the joints. In addition, the formation of an inter-diffusion layer in the Ti₂AlC substrate is considered as the major brazing mechanism. The maximum shear strength of the Ti₂AlC joints using the pure Al filler metal is 95 MPa, with an electrical conductivity of 2.21×10⁶ S m⁻¹, after holding the sample at 1123 K for 10 min.

Original language	English
Pages (from-to)	8579-8584
Number of pages	6
Journal	Ceramics International
Volume	43
Issue number	12
DOIs	https://doi.org/10.1016/j.ceramint.2017.03.113
State	Published - 15 Aug 2017
Externally published	Yes

Keywords

Aluminum filler
Brazing
Electrical conductivity
Mechanical property
TiAlC

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10.1016/j.ceramint.2017.03.113

Cite this

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title = "Brazing mechanisms of the Ti2AlC joints using a pure Al filler metal",

abstract = "Brazing of Ti2AlC ceramics has been successfully performed using a pure Al filler metal, in the temperature range 1023 K–1173 K and with holding time ranging from 0 to 30 min. The microstructure of the Ti2AlC joints was studied, and the mechanical properties of the joints were evaluated by shear strength test. It is observed that the Al filler has weak effect on the stability of Ti2AlC substrate, and only a small amount of decomposition products including the TiCx and TiAl3 compounds can be observed in the joints. In addition, the formation of an inter-diffusion layer in the Ti2AlC substrate is considered as the major brazing mechanism. The maximum shear strength of the Ti2AlC joints using the pure Al filler metal is 95 MPa, with an electrical conductivity of 2.21×106 S m−1, after holding the sample at 1123 K for 10 min.",

keywords = "Aluminum filler, Brazing, Electrical conductivity, Mechanical property, TiAlC",

author = "Chengjie Lu and Liangbo Sun and Jie Zhang and Qin Qi and Gilles Hug",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = aug,

day = "15",

doi = "10.1016/j.ceramint.2017.03.113",

language = "英语",

volume = "43",

pages = "8579--8584",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "12",

}

TY - JOUR

T1 - Brazing mechanisms of the Ti2AlC joints using a pure Al filler metal

AU - Lu, Chengjie

AU - Sun, Liangbo

AU - Zhang, Jie

AU - Qi, Qin

AU - Hug, Gilles

PY - 2017/8/15

Y1 - 2017/8/15

N2 - Brazing of Ti2AlC ceramics has been successfully performed using a pure Al filler metal, in the temperature range 1023 K–1173 K and with holding time ranging from 0 to 30 min. The microstructure of the Ti2AlC joints was studied, and the mechanical properties of the joints were evaluated by shear strength test. It is observed that the Al filler has weak effect on the stability of Ti2AlC substrate, and only a small amount of decomposition products including the TiCx and TiAl3 compounds can be observed in the joints. In addition, the formation of an inter-diffusion layer in the Ti2AlC substrate is considered as the major brazing mechanism. The maximum shear strength of the Ti2AlC joints using the pure Al filler metal is 95 MPa, with an electrical conductivity of 2.21×106 S m−1, after holding the sample at 1123 K for 10 min.

AB - Brazing of Ti2AlC ceramics has been successfully performed using a pure Al filler metal, in the temperature range 1023 K–1173 K and with holding time ranging from 0 to 30 min. The microstructure of the Ti2AlC joints was studied, and the mechanical properties of the joints were evaluated by shear strength test. It is observed that the Al filler has weak effect on the stability of Ti2AlC substrate, and only a small amount of decomposition products including the TiCx and TiAl3 compounds can be observed in the joints. In addition, the formation of an inter-diffusion layer in the Ti2AlC substrate is considered as the major brazing mechanism. The maximum shear strength of the Ti2AlC joints using the pure Al filler metal is 95 MPa, with an electrical conductivity of 2.21×106 S m−1, after holding the sample at 1123 K for 10 min.

KW - Aluminum filler

KW - Brazing

KW - Electrical conductivity

KW - Mechanical property

KW - TiAlC

UR - https://www.scopus.com/pages/publications/85017462834

U2 - 10.1016/j.ceramint.2017.03.113

DO - 10.1016/j.ceramint.2017.03.113

M3 - 文章

AN - SCOPUS:85017462834

SN - 0272-8842

VL - 43

SP - 8579

EP - 8584

JO - Ceramics International

JF - Ceramics International

IS - 12

ER -

Brazing mechanisms of the Ti₂AlC joints using a pure Al filler metal

Abstract

Keywords

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