Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction

Gaohui Wu; Yanmei Liu; Ziyang Xiu; Longtao Jiang; Wenshu Yang

doi:10.1007/s12598-010-0017-3

Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction

Gaohui Wu^*
, Yanmei Liu
, Ziyang Xiu
, Longtao Jiang
, Wenshu Yang

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

7 Scopus citations

Abstract

The in situ reaction procedure and microstructure evolution of a graphite fiber reinforced Ti-Al composite (Grf/Ti-Al) was investigated, and the stability of TiAl₃ at high temperature was discussed. As-cast material was prepared by pressing molten pure aluminum into a preform, which was composed of titanium particles and graphite fibers. The in situ reaction procedure of the as-cast material was investigated by differential scanning calorimetry (DSC), and phases in the products were detected by X-ray diffraction (XRD). Experimental results showed that TiAl₃ was formed first. With an increase in temperature, TiC and Al₄C₃ were observed, but TiAl₃ decreased. In the final product, Al₂O₃ and TiO₂ were observed. It was considered that the previous forming TiAl₃ decomposed, then TiC precipitated, and subsequently, oxidation resulted in the formation of Al₂O₃ and TiO₂.

Original language	English
Pages (from-to)	98-101
Number of pages	4
Journal	Rare Metals
Volume	29
Issue number	1
DOIs	https://doi.org/10.1007/s12598-010-0017-3
State	Published - Feb 2010

Keywords

In situ reaction
Intermetallics
Microstructure
Squeeze casting
Titanium aluminide composites

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10.1007/s12598-010-0017-3

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title = "Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction",

abstract = "The in situ reaction procedure and microstructure evolution of a graphite fiber reinforced Ti-Al composite (Grf/Ti-Al) was investigated, and the stability of TiAl3 at high temperature was discussed. As-cast material was prepared by pressing molten pure aluminum into a preform, which was composed of titanium particles and graphite fibers. The in situ reaction procedure of the as-cast material was investigated by differential scanning calorimetry (DSC), and phases in the products were detected by X-ray diffraction (XRD). Experimental results showed that TiAl3 was formed first. With an increase in temperature, TiC and Al4C3 were observed, but TiAl3 decreased. In the final product, Al2O3 and TiO2 were observed. It was considered that the previous forming TiAl3 decomposed, then TiC precipitated, and subsequently, oxidation resulted in the formation of Al2O3 and TiO2.",

keywords = "In situ reaction, Intermetallics, Microstructure, Squeeze casting, Titanium aluminide composites",

author = "Gaohui Wu and Yanmei Liu and Ziyang Xiu and Longtao Jiang and Wenshu Yang",

year = "2010",

month = feb,

doi = "10.1007/s12598-010-0017-3",

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volume = "29",

pages = "98--101",

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}

TY - JOUR

T1 - Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction

AU - Wu, Gaohui

AU - Liu, Yanmei

AU - Xiu, Ziyang

AU - Jiang, Longtao

AU - Yang, Wenshu

PY - 2010/2

Y1 - 2010/2

N2 - The in situ reaction procedure and microstructure evolution of a graphite fiber reinforced Ti-Al composite (Grf/Ti-Al) was investigated, and the stability of TiAl3 at high temperature was discussed. As-cast material was prepared by pressing molten pure aluminum into a preform, which was composed of titanium particles and graphite fibers. The in situ reaction procedure of the as-cast material was investigated by differential scanning calorimetry (DSC), and phases in the products were detected by X-ray diffraction (XRD). Experimental results showed that TiAl3 was formed first. With an increase in temperature, TiC and Al4C3 were observed, but TiAl3 decreased. In the final product, Al2O3 and TiO2 were observed. It was considered that the previous forming TiAl3 decomposed, then TiC precipitated, and subsequently, oxidation resulted in the formation of Al2O3 and TiO2.

AB - The in situ reaction procedure and microstructure evolution of a graphite fiber reinforced Ti-Al composite (Grf/Ti-Al) was investigated, and the stability of TiAl3 at high temperature was discussed. As-cast material was prepared by pressing molten pure aluminum into a preform, which was composed of titanium particles and graphite fibers. The in situ reaction procedure of the as-cast material was investigated by differential scanning calorimetry (DSC), and phases in the products were detected by X-ray diffraction (XRD). Experimental results showed that TiAl3 was formed first. With an increase in temperature, TiC and Al4C3 were observed, but TiAl3 decreased. In the final product, Al2O3 and TiO2 were observed. It was considered that the previous forming TiAl3 decomposed, then TiC precipitated, and subsequently, oxidation resulted in the formation of Al2O3 and TiO2.

KW - In situ reaction

KW - Intermetallics

KW - Microstructure

KW - Squeeze casting

KW - Titanium aluminide composites

UR - https://www.scopus.com/pages/publications/77149177962

U2 - 10.1007/s12598-010-0017-3

DO - 10.1007/s12598-010-0017-3

M3 - 文章

AN - SCOPUS:77149177962

SN - 1001-0521

VL - 29

SP - 98

EP - 101

JO - Rare Metals

JF - Rare Metals

IS - 1

ER -

Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction

Abstract

Keywords

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