Microstructure evolution of Ti-Al-C system composite

Yanmei Liu; Ziyang Xiu; Gaohui Wu; Longtao Jiang; Huasong Gou; Guoqing Jiang

Microstructure evolution of Ti-Al-C system composite

Yanmei Liu
, Ziyang Xiu
, Gaohui Wu^*
, Longtao Jiang
, Huasong Gou
, Guoqing Jiang

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

6 Scopus citations

Abstract

Ti-Al-C composite was fabricated by infiltration-in situ reaction. The as-cast material was prepared by pressing molten pure aluminum into the preform composed of titanium particles and carbon fibers. In situ reacted samples were obtained by heating the as-cast material from 600 to 1000°C, and holding for 1 h at different temperatures. The morphology and elemental composition of samples were analyzed by scanning electron microscope and Energy dispersive X-ray, respectively. In addition, the phase composition of products was inspected by X-ray diffraction. Results show that TiAl₃ and Al₄C₃ are formed at low temperature; with increasing of temperature, TiAl₃ decomposes and TiC precipitates; at high temperature, the oxidation occurs resulting in the formation of Al₂O₃. The mechanism of Ti-Al-C system composite during in situ reaction procedure is as following: formation-decomposition-precipitation-oxidation.

Original language	English
Pages (from-to)	1152-1156
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	39
Issue number	7
State	Published - Jul 2010

Keywords

Composites
In situ reaction
Intermetallic compounds
Ti-Al-C

Cite this

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title = "Microstructure evolution of Ti-Al-C system composite",

abstract = "Ti-Al-C composite was fabricated by infiltration-in situ reaction. The as-cast material was prepared by pressing molten pure aluminum into the preform composed of titanium particles and carbon fibers. In situ reacted samples were obtained by heating the as-cast material from 600 to 1000°C, and holding for 1 h at different temperatures. The morphology and elemental composition of samples were analyzed by scanning electron microscope and Energy dispersive X-ray, respectively. In addition, the phase composition of products was inspected by X-ray diffraction. Results show that TiAl3 and Al4C3 are formed at low temperature; with increasing of temperature, TiAl3 decomposes and TiC precipitates; at high temperature, the oxidation occurs resulting in the formation of Al2O3. The mechanism of Ti-Al-C system composite during in situ reaction procedure is as following: formation-decomposition-precipitation-oxidation.",

keywords = "Composites, In situ reaction, Intermetallic compounds, Ti-Al-C",

author = "Yanmei Liu and Ziyang Xiu and Gaohui Wu and Longtao Jiang and Huasong Gou and Guoqing Jiang",

year = "2010",

month = jul,

language = "英语",

volume = "39",

pages = "1152--1156",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "7",

}

TY - JOUR

T1 - Microstructure evolution of Ti-Al-C system composite

AU - Liu, Yanmei

AU - Xiu, Ziyang

AU - Wu, Gaohui

AU - Jiang, Longtao

AU - Gou, Huasong

AU - Jiang, Guoqing

PY - 2010/7

Y1 - 2010/7

N2 - Ti-Al-C composite was fabricated by infiltration-in situ reaction. The as-cast material was prepared by pressing molten pure aluminum into the preform composed of titanium particles and carbon fibers. In situ reacted samples were obtained by heating the as-cast material from 600 to 1000°C, and holding for 1 h at different temperatures. The morphology and elemental composition of samples were analyzed by scanning electron microscope and Energy dispersive X-ray, respectively. In addition, the phase composition of products was inspected by X-ray diffraction. Results show that TiAl3 and Al4C3 are formed at low temperature; with increasing of temperature, TiAl3 decomposes and TiC precipitates; at high temperature, the oxidation occurs resulting in the formation of Al2O3. The mechanism of Ti-Al-C system composite during in situ reaction procedure is as following: formation-decomposition-precipitation-oxidation.

AB - Ti-Al-C composite was fabricated by infiltration-in situ reaction. The as-cast material was prepared by pressing molten pure aluminum into the preform composed of titanium particles and carbon fibers. In situ reacted samples were obtained by heating the as-cast material from 600 to 1000°C, and holding for 1 h at different temperatures. The morphology and elemental composition of samples were analyzed by scanning electron microscope and Energy dispersive X-ray, respectively. In addition, the phase composition of products was inspected by X-ray diffraction. Results show that TiAl3 and Al4C3 are formed at low temperature; with increasing of temperature, TiAl3 decomposes and TiC precipitates; at high temperature, the oxidation occurs resulting in the formation of Al2O3. The mechanism of Ti-Al-C system composite during in situ reaction procedure is as following: formation-decomposition-precipitation-oxidation.

KW - Composites

KW - In situ reaction

KW - Intermetallic compounds

KW - Ti-Al-C

UR - https://www.scopus.com/pages/publications/77955680954

M3 - 文章

AN - SCOPUS:77955680954

SN - 1002-185X

VL - 39

SP - 1152

EP - 1156

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 7

ER -

Microstructure evolution of Ti-Al-C system composite

Abstract

Keywords

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