Ti-Al-Nb三元体系50Ti-<em>x</em>Al-<em>y</em>Nb的垂直截面

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Abstract The Ti-Al-Nb ternary alloy samples were prepared by vacuum melting, and then annealed at 1 000, 900, and 800 ℃ for 720, 1 440, and 2 160 h in furnace, respectively. Finally, these samples were quickly quenched to retain the high temperature structure. The vertical section of 50Ti-xAl-yNb in Ti-Al-Nb system was studied using X-ray diffraction analysis (XRD), differential thermal analysis (DSC) and electron probe microanalysis (EPMA). This work focused on detecting the change of phase zone in the middle temperature region (800-1 000 ℃). Five three-phase equilibrium zones: σ+β+α₂, σ+O+α₂, α₂+γ+β, α₂+γ+σ and α₂+σ+τ; two two-phase equilibrium regions: β+O and α₂+γ; and two single-phase regions: γ and β have been measured.

Key words： Ti₂AlNb Ti-Al-Nb system microstructure phase diagram measure vertical section

Received: 26 May 2020 Published: 18 September 2020

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	ZHAO Yun
	LIU Libin
	YANG Jiajun
	ZHANG Ligang

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ZHAO Yun,LIU Libin,YANG Jiajun, et al. Vertical section of 50Ti-xAl-yNb in Ti-Al-Nb system[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(4): 280-287.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I4/280

[1] 司玉锋, 陈子勇, 孟丽华, 等. Ti₃Al基金属间化合物的研究进展[J]. 特种铸造及有色合金, 2003(4): 33-35.
SI Yufeng, CHEN Ziyong, MENG Lihua, et al.Research progress in Ti₃Al base intermetallic compound[J]. Special Casting & Nonferrous Alloys. 2003(4): 33-35.
[2] WANG W, ZENG W, XUE C, et al.Microstructure control and mechanical properties from isothermal forging and heat treatment of Ti-22Al-25Nb(at.%) orthorhombic alloy[J]. Intermetallics, 2015, 56: 79-86.
[3] 杨锐. 钛铝金属间化合物的进展与挑战[J]. 金属学报, 2015, 51(2): 129-147.
YANG Rui.Advaneds and challenges of TiAl base alloys[J]. Acta Metallurgica Sinica, 2015, 51(2): 129-147.
[4] POLLOCK T M.Alloy design for aircraft engines[J]. Nature Materials, 2016, 15(8): 809-815.
[5] 张振兴. Ti-22.5Al-xNb合金组织与性能研究[D]. 哈尔滨: 哈尔滨工业大学, 2011: 6-16.
ZHANG Zhenxing.Research on microstructrues and mechanical properties of Ti-22.5Al-xNb alloys[D]. Harbin: Harbin Institute of Technology, 2011: 6-16.
[6] 王思秋. Ti-22Al-25Nb合金粉末冶金制备及组织性能研究 [D]. 哈尔滨: 哈尔滨工业大学, 2016: 3-15.
WANG Siqiu.Microstructure and mechanical properties of Ti-22Al-25Nb alloy prepared by pwoder metallurgy route[D]. Harbin: Harbin Institute of Technology, 2016: 3-15.
[7] GOGIA A K, NANDY T K, BANERJEE D, et al.Microstructure and mechanical properties of orthorhombic alloys in the Ti-Al-Nb system[J]. Intermetallics, 1998, 6(7/8): 741-749.
[8] XUE C, ZENG W, XU B, et al.B2 grain growth and particle pinning effect of Ti-22Al-25Nb orthorhombic intermetallic alloy during heating process[J]. Intermetallics, 2012, 29: 41-47.
[9] HAGIWARA M, EMURA S, ARAOKA A, et al.Enhanced mechanical properties of orthorhombic Ti₂AlNb-based intermetallic alloy[J]. Metals and Materials International, 2003, 9(3): 265-272.
[10] CHEN X, WEIDONG Z, WEI W, et al.The enhanced tensile property by introducing bimodal size distribution of lamellar O for O+B2 Ti₂AlNb based alloy[J]. Materials Science and Engineering: A, 2013, 587: 54-60.
[11] BENDERSKY L A, BOETTINGER W J, BURTON B P, et al.The formation of ordered ω-related phases in alloys of composition Ti₄Al₃Nb[J]. Acta Metallurgica Et Materialia, 1990, 38(6): 931-943.
[12] SONG L, WANG L, ZHANG T, et al.Microstructure and phase transformations of ωo-Ti₄Al₃Nb based alloys after quenching and subsequent aging at intermediate temperatures[J]. Journal of Alloys and Compounds, 2020, 821: 1533-1587.
[13] KUMPFERT J.Intermetallic Alloys based on orthorhombic titanium aluminide[J]. Advanced Engineering Materials, 2010, 3(11): 851-864.
[14] BOEHLERT C J.The effects of forging and rolling on microstructure in O+BCC Ti-Al-Nb alloys[J]. Materials Science and Engineering: A, 2000, 279(1): 118-129.
[15] GUYMONT M, SADI F A, SERVANT C.The coherent growing of the γ-phase in Ti₄Al₃Nb alloy; proceedings of the Electron Microscopy[C]// Cancun, Mexico, F, 1998.
[16] KOSTOVA, FRIEDRICH B.Selection of crucible oxides in molten titanium and titanium-aluminum alloys by thermo- chemistry calculations[J]. Journal of Mining & Metallurgy, 2005, 41(1): 113-125.
[17] MASSET P J, SCHÜTZE M. Thermodynamic assessment of the alloy concentration limits for the halogen effect of TiAl alloys[J]. Advanced Engineering Materials, 2010, 10(7): 666-674.
[18] LI L, LIU L, ZHANG L, et al.Phase equilibria of the Ti-Al-Nb system at 1 000, 1 100 and 1 150 ℃[J]. Journal of Phase Equilibria and Diffusion, 2018, 39(5): 549-561.
[19] 徐帅. Ti-Al-Nb三元系相平衡以及典型相变的研究[D]. 北京:北京科技大学, 2019: 78-93.
XU Shuai.Study on the phase equilibria and typical phase transformations of Ti-Al-Nb ternary system[D]. Beijing: University of Science and Technology Beijing, 2019: 78-93.