CHARACTERIZATION OF TiAl PRE–ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE

doi:10.3724/SP.J.1037.2011.00136

Acta Metall Sin

2011, Vol. 47

Issue (10): 1263-1269 DOI: 10.3724/SP.J.1037.2011.00136

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CHARACTERIZATION OF TiAl PRE–ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE

WANG Gang, ZHENG Zhuo, CHANG Litao, XU Lei, CUI Yuyou, YANG Rui

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

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WANG Gang ZHENG Zhuo CHANG Litao XU Lei CUI Yuyou YANG Rui. CHARACTERIZATION OF TiAl PRE–ALLOYED POWDER AND ITS DENSIFICATION MICROSTRUCTURE. Acta Metall Sin, 2011, 47(10): 1263-1269.

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Abstract TiAl pre–alloyed powder (nominal composition Ti–47Al–2Cr–2Nb–0.2W–0.15B, atomic fraction, %) was produced by electrode induction melting gas atomization (EIGA) technique. The average diameter is 120.7 μm, and the distribution of the powder diameter follows Gaussian distribution. The phase constitution is a function of particle diameter. The amount of the γ phase increases with powder diameter increasing, the finest powder consists of predominantly α₂ phase. The α₂ phase in the powder was transformed into γ phase after annealing at temperatures higher than 500 ℃. Local coarsening was observed in the microstructure of TiAl compact duo to the microsegregation of elements in the powder. The XPS result indicated that the outer layer of the TiAl pre–alloyed particle consists of a thin layer of Al₂O₃ and TiO₂.

Key words: TiAl gas atomization metastable phase microsegregation

Received: 16 March 2011

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https://www.ams.org.cn/EN/10.3724/SP.J.1037.2011.00136 OR https://www.ams.org.cn/EN/Y2011/V47/I10/1263

[1] Dimiduk D M. Mater Sci Eng, 1999; A263: 281

[2] Thomas M, Berteaux O, Popoff F, Bacos M P, Morel A, Passilly B, Ji V. Intermetallics, 2006; 14: 1143

[3] Lu X, Zhao L M, Qu X H. Mater Rev, 2006; 20(8): 69

(路新, 赵丽明, 曲选辉. 材料导报, 2006; 20(8): 69)

[4] Gouma P I, Saunders N, Loretto M H. Mater Sci Technol, 1996; 12: 823

[5] Gerling R, Clemens H, Schimansky F P. Adv Eng Mater, 2004; 6: 23

[6] Unal R. J Mater Process Technol, 2006; 180: 291

[7] Wegmann G, Gerling R, Schimansky F P. Acta Mater, 2003; 51: 741

[8] Clemens H. Z Metallk, 1995; 86: 814

[9] Zhang Y W, Shangguang Y H. Powder Metall Ind, 2004; 14(6): 30

(张义文, 上官永恒. 粉末冶金工业, 2004; 14(6): 30)

[10] Miles T E, Rhodes J F. In: Mehrabian R, Kear B H, Cohen M, eds., Rapid Solidification Processing: Principles and Technologies. Baton Rouge: Claitor’s Pub, 1978: 347

[11] Cahn R W. Mater Sci Eng, 2002; A324: 1

[12] Wang P, Viswanathan G B, Vasudevan V K. Metall Mater Trans, 1992; 23A: 690

[13] Fischer F D, Cha L, Dehm G, Clemens H. Intermetallics, 2010; 18: 972

[14] Adams A G, Rahaman M N, Dutton R E. Mater Sci Eng, 2008; A477: 137

[15] Rao G A, Srinivas M, Sarma D S. Mater Sci Eng, 2006; A435–436: 84

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