Effects of Alloying Elements on the Volume Fraction of Ordered α2 Phase Precipitated in Ti-Al-Sn-Zr Alloys

材料科学技术（英文）, 2007, 23(1): 102-106.

^1, , ^2, , ^3, , ^4, , ^5,

1.Department of Materials Science and Engineering, Shenyang University, Shenyang 110044, China

2.Department of Materials Science and Engineering, Shenyang University, Shenyang 110044, China

3.Department of Materials Science and Engineering, Shenyang University, Shenyang 110044, China

4.Department of Materials Science and Engineering, Shenyang University, Shenyang 110044, China

5.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China

基金项目: 国家自然科学基金(50471085)

Effects of Alloying Elements on the Volume Fraction of Ordered α2 Phase Precipitated in Ti-Al-Sn-Zr Alloys

Keywords： Ordered α2 phase

An ideal method has been established for calculating the precipitation of α2 ordered phase in near-α titanium alloys based on the theory on the critical electron concentration for the precipitation of α 2 ordered phase in near-α titanium alloys. With complete precipitation of α2 phase in near-α titanium alloys, the alloys can be considered to be composed of two parts: (1) the α2 ordered phase with the stoichiometric atomic ratio of Ti3X; (2) the disorder solid solution with the critical composition in which the α2 ordered phase is just unable to precipitate. By using this method, the volume fractions of α2 ordered phase precipitated in Ti-Al, Ti-Sn,Ti-Al-Sn-Zr alloys with various Al, Sn and/or Zr contents have been calculated. The influences of Al and Sn on the precipitation of α2 ordered phase are discussed. The calculating results show substantial agreement with the experimental ones.

参考文献

[1]	M J Blackburn;J C Williams .[J].Trans Am Soc Metals,1996,62:398.
[2]	H W Rosenberg.[A].New York:Pergamon Press,1970:851.
[3]	D Banerjee;D Mukherjee;R L Saha;K Bose .[J].Metallurgical Transactions A-physical Metallurgy and Materials Science,1983,14A:413.
[4]	D Eylon;S Fujishiro;P J Postans;F H Froes .[J].Journal of Metals,1984,36(11):55.
[5]	Hidehiro Onodera;Shizuo Nakazawa;Katsumi Ohno;Toshihiro Yamagata and Michio Yamazaki .[J].ISIJ International,1991,31:875.
[6]	A Madsen;E Andrieu;H Ghonem .[J].Material Science and Engineering,1993,A171:191.
[7]	G Lüitjering;S Weissmann .[J].Acta Metalluraica,1970,18:785.
[8]	Jun ZHANG,Dong LI.Effect of Al Content on Precipitation of α2 Ordered Phase in Ti-Al-Sn-Zr-Mo-Si-Nd Alloys[J].材料科学技术学报(英文版),2002(03):245-247.
[9]	X. D. Zhang .Precipitation of ordered ?2 phase in Ti-6-22-22 alloy[J].Acta materialia,1998(13):4485-4496.
[10]	Jun Zhang;Dong Li .[J].Material Science and Engineering,2003,A341:229.
[11]	Dong Li;Yuyin Liu;Xiaojing Wan .[J].ACTA METALLURGICA SINICA,1984,20:A375.
[12]	Dong Li;Xiaojing Wan .[J].ACTA METALLURGICA SINICA,1984,20:A384.
[13]	Jun Zhang,Yu Zhang,Li Li,Chunli Wang,Qingjiang Wang,Yuyin Liu.Relationships between the precipitation of α2 ordered phase and alloying elements/electron concentration in α+α2 titanium alloys[J].北京科技大学学报（英文版）,2005(02):128-133.

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Effects of Alloying Elements on the Volume Fraction of Ordered α2 Phase Precipitated in Ti-Al-Sn-Zr Alloys

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