Modeling of β→α Transformation in Complex Titanium Alloys

摘要：

A model has been developed which is able to predict the kinetics of β→α transformation in industrial multicomponent titanium alloys during complex heat treatments. It is based on (i) analytical nucleation and growth laws based on simple geometric representations of the different morphologies commonly obser-ved in these alloys;(ii) the assumption of local equilibrium at interfaces,handled within the CalPhaD framework; (iii) averaged solute balances in each mor-phology. The potentialities of the model will be demonstrated on the Til7 industrial alloy upon isothermal holdings and cooling from the β phase field.

关键词： Titanium alloys microstructure kinetics modeling nucleation growth dissolution calphad volume averaging

作者: Paolo Di Napoli Beno(i)t Appolaire Elisabeth Aeby-Gautier Adeline Bénéteau

作者单位: Institut Jean Lamour-Dept. SI2M,Ecole des Mines,Nancy,France Laboratoire d Etude des Microstructures,Onera-CNRS,Chatillon,France Snecma,Colombes,France

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: 628-631

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）