Nb含量对TiAl-Nb合金相组成及氧化动力学的影响

doi:10.3969/j.issn.1000-9957.2003.01.007

大连海洋大学学报

2003, Vol. 18

Issue (1): 34-37 DOI: 10.3969/j.issn.1000-9957.2003.01.007

Nb含量对TiAl-Nb合金相组成及氧化动力学的影响

丁晓非,牟晨晓,沈勇

大连水产学院大连理工大学

Effect of Nb on microstructure and oxidation resistance of Nb-TiAl based alloy

DING Xiao-fei¹, MU Chen-xiao¹,SHEN Yong²

1. Dept. of Machinery Engineering, Dalian Fisheries Univ.,Dalian 116023, China; 2. Dept. of Material Engineering, Dalian University of Technology, Dalian 116024, China

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摘要对4种铸态TiAl-Nb合金进行显微组织观察和X射线分析,结果表明,不同的Nb含量对其相组成及组织形态都有不同程度的影响.用热重法研究了这4种TiAl基合金在1000℃、100 h的循环氧化行为.通过对每个成分的合金氧化动力学曲线分析,发现含铌量适中的钛铝基合金的抗氧化性较好.

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关键词: TiAl-Nb合金显微组织 X射线分析氧化动力学

Abstract: X-ray diffraction and microstructures of four as-cast Nb-TiAl alloys were studied. The results indicate that Nb-TiAl alloys of different Nb have different phases. Interrupted oxidation behavior of four as-cast Nb-TiAl alloy at 1000℃ in static air were studied using thermo-gravimetric analysis. The results indicate that moderate Nb can enhance oxidation resistance of the alloy by analyses of Kinetic curves of interrupted oxidation of TiAl based alloy of high Nb content - at 1000℃.

Key words: TiAl-Nb alloy microstructure X-ray diffraction analysis oxidation kinetics

发布日期: 2016-12-30 期的出版日期: 2003-02-21

中图分类号:

TG115.21

引用本文:

丁晓非, 牟晨晓, 沈勇. Nb含量对TiAl-Nb合金相组成及氧化动力学的影响[J]. 大连海洋大学学报, 2003, 18(1): 34-37.
DING Xiao-fei, MU Chen-xiao, SHEN Yong. Effect of Nb on microstructure and oxidation resistance of Nb-TiAl based alloy. Journal of Dalian Ocean University, 2003, 18(1): 34-37.

链接本文:

https://xuebao.dlou.edu.cn/CN/10.3969/j.issn.1000-9957.2003.01.007 或 https://xuebao.dlou.edu.cn/CN/Y2003/V18/I1/34

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