Superplasticity Phenomenon in FeAl Alloy with Large Grains
Li Dingqiang;Shan Aidang;Lin Dongliang(Shanghai Jiaotong University,Shanghai 200030,PRC)
Abstract Superplasticity phenomenon of FeAl alloy with 2at. % Ti has been investigated. It was found to be a large grain superplasticity and ascribed to the dynamic recovery and recrystallization in this alloy during tensile test at high temperature. The coefficient of the rate sensitivity of now stress,m value,is 0. 30￣0. 42 at 1000℃. The total elongation of FeAl alloy with Ti waS up to 208% at 1000℃ under strain rate of 1. 4× 10-2/s.
【CateGory Index】： TG113.253