Microstructure and Mechanical Properties of Cross-rolled Ti_(50)Ni_(47)Fe_3 Shape Memory Alloy  

作　　者：ZHAO Li-xiao LIU Fu-shun XU Hui-bin 

机构地区：[1]School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

出　　处：《Chinese Journal of Aeronautics》2006年第B12期224-227,共4页中国航空学报（英文版）

基　　金：National Defence Pre-research Foundation

摘　　要：The microstructures, the phase transformation characteristics, and the mechanical properties of the Ti50Ni47Fe3 alloy in as-forged and as-cross-rolled states were investigated. It is found that, after cross-rolling, the phase transformation temperature （Ms） of the alloy decreases drastically and the grains get refined. Moreover, its yield strength and fracture strength after cross-rolling hit 540 MPa and 687 MPa respectively, up by about 200 MPa over those in as-forged state.The microstructures, the phase transformation characteristics, and the mechanical properties of the Ti50Ni47Fe3 alloy in as-forged and as-cross-rolled states were investigated. It is found that, after cross-rolling, the phase transformation temperature （Ms） of the alloy decreases drastically and the grains get refined. Moreover, its yield strength and fracture strength after cross-rolling hit 540 MPa and 687 MPa respectively, up by about 200 MPa over those in as-forged state.

关 键 词：Ti50Ni47Fe3 shape memory alloy cross-rolled mechanical properties 

分 类 号：TG337[金属学及工艺—金属压力加工] TG139.6[一般工业技术—材料科学与工程]