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High-Temperature Oxidation Resistance of W, B, Y Microalloyed TiAl Based Alloys with High Nb Content
Alternative TitleHigh-Temperature Oxidation Resistance of W, B, Y Microalloyed TiAl Based Alloys with High Nb Content
Wang Yanjing; Liu Le; Song Meijin; Wang Jijie; Du Xinghao
2014
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume43Issue:8Pages:1871-1875
AbstractThe interrupted oxidation behavior of B, W and Y micro-alloyed TiAl-based alloys with high Nb content at 900 degrees C in static air was investigated. The results show that the combined addition of 0.2wt%B and 0.1wt%Y improves the oxidation resistance obviously with less oxidation weighting and enhanced adherence of the oxide scale, while the combined addition of 0.2wt%W and 0.1wt%Y leads to poor oxidation resistance with higher oxidation weighting and impairing adherence of the oxide scale. Besides, the oxidation resistance of the alloy with combined addition of 0.2wt%B, 0.2wt%W and 0.1wt%Y does not change significantly. Oxidized samples were examined by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffraction analysis (XRD). It is found that the combined addition B and Y can promote the formation of continuous and compact Al2O3 oxide scale. The combined addition W and Y produces continuous Al2O3 layer near to the matrix and thick TiO2 layer with low Nb content in the mixed layer. Combined addition W, B and Y promotes the formation of Al2O3 oxide scale in the mixed layer.
KeywordMECHANICAL-PROPERTIES MICROSTRUCTURE TiAl intermetallic compound high temperature oxidation W, B, Y microalloying
Indexed ByCSCD
Language英语
CSCD IDCSCD:5234847
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150117
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang Yanjing,Liu Le,Song Meijin,et al. High-Temperature Oxidation Resistance of W, B, Y Microalloyed TiAl Based Alloys with High Nb Content[J]. RARE METAL MATERIALS AND ENGINEERING,2014,43(8):1871-1875.
APA Wang Yanjing,Liu Le,Song Meijin,Wang Jijie,&Du Xinghao.(2014).High-Temperature Oxidation Resistance of W, B, Y Microalloyed TiAl Based Alloys with High Nb Content.RARE METAL MATERIALS AND ENGINEERING,43(8),1871-1875.
MLA Wang Yanjing,et al."High-Temperature Oxidation Resistance of W, B, Y Microalloyed TiAl Based Alloys with High Nb Content".RARE METAL MATERIALS AND ENGINEERING 43.8(2014):1871-1875.
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