Formation Conditions of Omega Phase in the Titanium Alloys after Quenching

摘要：

Features of athermal omega phase of anomalous morphology,as massive precipitations of rafting structure,in the Ti-Nb,Ti-V systems have been studied It is shown that necessary conditions of rafting urphase formation are,firstly, competition of β→α″- and β→ω- transformation in process of quenching below temperature T=Tω=Ms, secondly,the value of electron concentration of β-solid solution (e/a) corresponding to the lower limit of critical values of e/a, where the formation of omega phase is possible. A dislocation model, which explains morphology features of rafting ω-phase,was suggested. The formation of rafting urphase in the structure of quenching titanium alloys was found to promote increasing of physical-mechanical characteristics.

关键词： Titanium alloys quenching massive omega phase structure

作者: Popov A. A Illarionov A. G. Grib S. V. Elkina O. A.

作者单位: Department of Metallurgy,Ural Federal University named after the first President of Russia B. N. Yel Institute of Metal Physics,Ural Division,Russian Academy of Sciences,ul. S. Kovalevskoi 18,Ekaterinb

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 694-697

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）