Phase Transformations and Functional Properties of NiTi Alloy with Ultrafine-Grained Structure

摘要：

Severe plastic deformation (SPD) processes, are successfully employed to produce ultra fine grain (UFG) and nanocrystalline (NC) microstructures in Nis0.7Ti49.3 shape memory alloy. The effect of grain size on phase transformations during annealing is investigated by differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). The results of comparative studies of phase transformations in coarse-grained, UFG and NC alloys after SPD and subsequent long-term (up to 100 hours) annealing at 400℃ is presented. The functional properties and the innovation potential of UFG NiTi alloys is considered and discussed.

作者: Egor Prokofiev Juri Burow Jan Frenzel Dmitry Gunderov Gunther Eggeler Ruslan Valiev

作者单位: Institute of Physics of Advanced Materials,Ufa State Aviation Technical University,K.Marx str.12,450 lnstitut fur Werkstoffe,Ruhr-Universitat Bochum,Universitatsstr.150,44801 Bochum,Germany

会议类型: 国际会议

会议名称: 5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)

会议地点: 南京

会议语种:英文

页码: 1059-1064

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）