Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering
The Ti43. 5Al5Nb1V1Y ( at. % ) prealloyed powder prepared by the gas atomization process was used as the raw material，and the fine grained TiAl alloy was successfully prepared by the spark plasma sintering process. The effects of different sintering temperatures ( 1，200 ～ 1，300℃ ) on the microstruct...
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Harbin University of Science and Technology Publications
2021-02-01
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| Series: | Journal of Harbin University of Science and Technology |
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| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1925 |
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| author | KANG Fu-wei WEI Shi-jie WANG En-hao SUN Jian-fei ZHANG Guo-qing LIU Na |
| author_facet | KANG Fu-wei WEI Shi-jie WANG En-hao SUN Jian-fei ZHANG Guo-qing LIU Na |
| author_sort | KANG Fu-wei |
| collection | DOAJ |
| description | The Ti43. 5Al5Nb1V1Y ( at. % ) prealloyed powder prepared by the gas atomization process was used as the raw material，and the fine grained TiAl alloy was successfully prepared by the spark plasma sintering process. The effects of different sintering temperatures ( 1，200 ～ 1，300℃ ) on the microstructure and mechanical properties were investigated. The microstructure of the sintered sample was characterized by OM，XＲD，SEM， etc. ，and the room temperature compression test was carried out in a mechanical testing machine. It is found that the sintered samples are mainly composed of γ-TiAl，α2 -Ti3 Al and a small amount of YAl2 phase. When the sintering temperature is 1，200℃，the density is high，and the compressive breaking strength is 2，098. 5 MPa. When the temperature is higher than 1，200℃，the density does not change significantly，and the breaking strength and plastic deformation amount increase. When the sintering temperature is 1，250℃，the fine two-state structureshows better mechanical properties. |
| format | Article |
| id | doaj-art-ebeb6f401bfd4c3d9b4fb7ccf5d16847 |
| institution | DOAJ |
| issn | 1007-2683 |
| language | zho |
| publishDate | 2021-02-01 |
| publisher | Harbin University of Science and Technology Publications |
| record_format | Article |
| series | Journal of Harbin University of Science and Technology |
| spelling | doaj-art-ebeb6f401bfd4c3d9b4fb7ccf5d168472025-08-20T02:55:03ZzhoHarbin University of Science and Technology PublicationsJournal of Harbin University of Science and Technology1007-26832021-02-01260110911510.15938/j.jhust.2021.01.015Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma SinteringKANG Fu-wei0WEI Shi-jie1WANG En-hao2SUN Jian-fei3ZHANG Guo-qing4LIU Na5School of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin University of Science and Technology，Harbin 150040，ChinaSchool of Material Science and Engineering，Harbin Institute of Technology，Harbin 150001，ChinaKey Laboratory of Advanced High Temperature Structural Materials，Beijing Institute of Aeronautical Materials，Beijing 100095，ChinaKey Laboratory of Advanced High Temperature Structural Materials，Beijing Institute of Aeronautical Materials，Beijing 100095，ChinaThe Ti43. 5Al5Nb1V1Y ( at. % ) prealloyed powder prepared by the gas atomization process was used as the raw material，and the fine grained TiAl alloy was successfully prepared by the spark plasma sintering process. The effects of different sintering temperatures ( 1，200 ～ 1，300℃ ) on the microstructure and mechanical properties were investigated. The microstructure of the sintered sample was characterized by OM，XＲD，SEM， etc. ，and the room temperature compression test was carried out in a mechanical testing machine. It is found that the sintered samples are mainly composed of γ-TiAl，α2 -Ti3 Al and a small amount of YAl2 phase. When the sintering temperature is 1，200℃，the density is high，and the compressive breaking strength is 2，098. 5 MPa. When the temperature is higher than 1，200℃，the density does not change significantly，and the breaking strength and plastic deformation amount increase. When the sintering temperature is 1，250℃，the fine two-state structureshows better mechanical properties.https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1925tial alloyaerosolized powderspark plasma sinteringmicrostructureproperties |
| spellingShingle | KANG Fu-wei WEI Shi-jie WANG En-hao SUN Jian-fei ZHANG Guo-qing LIU Na Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering Journal of Harbin University of Science and Technology tial alloy aerosolized powder spark plasma sintering microstructure properties |
| title | Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering |
| title_full | Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering |
| title_fullStr | Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering |
| title_full_unstemmed | Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering |
| title_short | Microstructure and Mechanical Properties of TiAl Alloy Prepared by Spark Plasma Sintering |
| title_sort | microstructure and mechanical properties of tial alloy prepared by spark plasma sintering |
| topic | tial alloy aerosolized powder spark plasma sintering microstructure properties |
| url | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1925 |
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