Microstructure of multilayer interface in an Al matrix composite reinforced by TiNi fiber

Jie Hu; Gaohui Wu; Qiang Zhang; Pengchao Kang; Yan Liu

doi:10.1016/j.micron.2014.02.014

Microstructure of multilayer interface in an Al matrix composite reinforced by TiNi fiber

Jie Hu
, Gaohui Wu^*
, Qiang Zhang
, Pengchao Kang
, Yan Liu

^*Corresponding author for this work

Harbin Institute of Technology
Harbin Institute of Technology

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

22 Scopus citations

Abstract

A multilayer interface was formed in the Al matrix composite which was reinforced by 30% volume fraction of TiNi fiber. The composite was fabricated by pressure infiltration process and the interface between the TiNi fiber and Al matrix was investigated by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). When the TiNi fiber was pre-oxidized in the air at 773K for 1h, three layers have been found and characterized in the interface: TiNi-B₂ layer near the TiNi fiber, Ti-Al compound layer with Ti and granular TiO₂ near the Al matrix, and Ti-Ni compound layer between TiNi-B₂ and Ti-Al compound layers. The effect of the multilayer interface on the mechanical properties of the composite was also discussed. The result showed that the uniaxial tensile strength of the composite at room temperature was 318MPa, which was very close to the theoretical calculation value of 326MPa. Moreover, the composite with good ductility exhibited a typical ductile-fracture pattern.

Original language	English
Pages (from-to)	57-65
Number of pages	9
Journal	Micron
Volume	64
DOIs	https://doi.org/10.1016/j.micron.2014.02.014
State	Published - Sep 2014
Externally published	Yes

Keywords

Al matrix composite
Interface layer
Microstructure
TEM
TiNi alloy

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10.1016/j.micron.2014.02.014

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@article{16bb8ae597e94c36aba8b764a1a85801,

title = "Microstructure of multilayer interface in an Al matrix composite reinforced by TiNi fiber",

abstract = "A multilayer interface was formed in the Al matrix composite which was reinforced by 30\% volume fraction of TiNi fiber. The composite was fabricated by pressure infiltration process and the interface between the TiNi fiber and Al matrix was investigated by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). When the TiNi fiber was pre-oxidized in the air at 773K for 1h, three layers have been found and characterized in the interface: TiNi-B2 layer near the TiNi fiber, Ti-Al compound layer with Ti and granular TiO2 near the Al matrix, and Ti-Ni compound layer between TiNi-B2 and Ti-Al compound layers. The effect of the multilayer interface on the mechanical properties of the composite was also discussed. The result showed that the uniaxial tensile strength of the composite at room temperature was 318MPa, which was very close to the theoretical calculation value of 326MPa. Moreover, the composite with good ductility exhibited a typical ductile-fracture pattern.",

keywords = "Al matrix composite, Interface layer, Microstructure, TEM, TiNi alloy",

author = "Jie Hu and Gaohui Wu and Qiang Zhang and Pengchao Kang and Yan Liu",

year = "2014",

month = sep,

doi = "10.1016/j.micron.2014.02.014",

language = "英语",

volume = "64",

pages = "57--65",

journal = "Micron",

issn = "0968-4328",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Microstructure of multilayer interface in an Al matrix composite reinforced by TiNi fiber

AU - Hu, Jie

AU - Wu, Gaohui

AU - Zhang, Qiang

AU - Kang, Pengchao

AU - Liu, Yan

PY - 2014/9

Y1 - 2014/9

N2 - A multilayer interface was formed in the Al matrix composite which was reinforced by 30% volume fraction of TiNi fiber. The composite was fabricated by pressure infiltration process and the interface between the TiNi fiber and Al matrix was investigated by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). When the TiNi fiber was pre-oxidized in the air at 773K for 1h, three layers have been found and characterized in the interface: TiNi-B2 layer near the TiNi fiber, Ti-Al compound layer with Ti and granular TiO2 near the Al matrix, and Ti-Ni compound layer between TiNi-B2 and Ti-Al compound layers. The effect of the multilayer interface on the mechanical properties of the composite was also discussed. The result showed that the uniaxial tensile strength of the composite at room temperature was 318MPa, which was very close to the theoretical calculation value of 326MPa. Moreover, the composite with good ductility exhibited a typical ductile-fracture pattern.

AB - A multilayer interface was formed in the Al matrix composite which was reinforced by 30% volume fraction of TiNi fiber. The composite was fabricated by pressure infiltration process and the interface between the TiNi fiber and Al matrix was investigated by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). When the TiNi fiber was pre-oxidized in the air at 773K for 1h, three layers have been found and characterized in the interface: TiNi-B2 layer near the TiNi fiber, Ti-Al compound layer with Ti and granular TiO2 near the Al matrix, and Ti-Ni compound layer between TiNi-B2 and Ti-Al compound layers. The effect of the multilayer interface on the mechanical properties of the composite was also discussed. The result showed that the uniaxial tensile strength of the composite at room temperature was 318MPa, which was very close to the theoretical calculation value of 326MPa. Moreover, the composite with good ductility exhibited a typical ductile-fracture pattern.

KW - Al matrix composite

KW - Interface layer

KW - Microstructure

KW - TEM

KW - TiNi alloy

UR - https://www.scopus.com/pages/publications/84899889107

U2 - 10.1016/j.micron.2014.02.014

DO - 10.1016/j.micron.2014.02.014

M3 - 文章

AN - SCOPUS:84899889107

SN - 0968-4328

VL - 64

SP - 57

EP - 65

JO - Micron

JF - Micron

ER -

Microstructure of multilayer interface in an Al matrix composite reinforced by TiNi fiber

Abstract

Keywords

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