Transactions of Nonferrous Metals Society of China
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
|Vol. 4 No. 2 June 1994|
（1.Analytic and Testing Cmiter; Southeast university; Nanjing 210018
2.Shanghai Iron and Steet Institute; Shanghai 200940）
Abstract:An fcc metastable phase was first fou, nd in the rapidly solidified (RS) Ni-Ti SMA strip pre-pared by single roller melt spinning method.The lattice constant a0 of this phase is 4.300 A. lts composition is the same as that of the matrix,and it is also composed of near-equiatomic Ni andTi.The morphology,distribution and formation mechanism of this phase were analysed and discussed.
Key words: rapid solidification Ni-Ti alloy fcc metastable phase miorphology distribution formation mechanism