Re-Determination of 1000℃ Partial Isothermal Section of the Ti-Al-Y Ternary System

Yang Zhishang; Ren Libin; Zhang Fuzhong; Zhou Rongzhang; Yu Zongsen

doi:10.13374/j.issn1001-053x.1995.06.003

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Article Navigation > Chinese Journal of Engineering > 1995 > 17(6): 512-516

Yang Zhishang, Ren Libin, Zhang Fuzhong, Zhou Rongzhang, Yu Zongsen. Re-Determination of 1000℃ Partial Isothermal Section of the Ti-Al-Y Ternary System[J]. Chinese Journal of Engineering, 1995, 17(6): 512-516. doi: 10.13374/j.issn1001-053x.1995.06.003

Citation:

Yang Zhishang, Ren Libin, Zhang Fuzhong, Zhou Rongzhang, Yu Zongsen. Re-Determination of 1000℃ Partial Isothermal Section of the Ti-Al-Y Ternary System[J]. Chinese Journal of Engineering, 1995, 17(6): 512-516. doi: 10.13374/j.issn1001-053x.1995.06.003

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Re-Determination of 1000℃ Partial Isothermal Section of the Ti-Al-Y Ternary System

doi: 10.13374/j.issn1001-053x.1995.06.003

1. Department of Metallurgy, USTB, Beijing 100083, PRC;
2. Collage of Light Indurstry & Building Materials, Beijing Union Iniversity

Received Date: 1995-04-20
Available Online: 2021-09-06

Abstract

Abstract

The 1000℃ partial isothermal section of Ti-Al-Y ternary phase diagram has been re-determined by using diffusion couple, electron microprobe analysis and metallography. The homogeneity ranges of two temary compounds Y(Al_xTi_1-x)₂ and Y₃(Al_xTi_1-x)₂ (x=80%~100%) at 1000℃ have been discovered. Six single phase regions. nine tow phase regions and four three phase regions have been determined in the studied partial isothermal section. The max. solid solubilities of Y in TiAl and TiAl₂ were found to be 1.25%(atom) and 4.20%(atom) respectively. However, those in Ti₃Al and TiAl₃ were found to be lowrr 0.1%(atom).
- phase diagrams/Ti-Al-Y alloys,
- Y(Al_xTi_1-x)₂,
- Y₃(Al_xTi_1-x)₂