Relationship between phase composition and corrosion resistance of Ni-Ti-Nb based shape memory alloys
来源期刊:中国有色金属学报2001年第z1期
论文作者:董治中 刘文西 贾堤 王德法
文章页码:118 - 120
Key words:Ni-Ti-Nb; corrosion resistance; phase components; shape memory alloy
Abstract: The stability and microstructure of Ni-Ti-Nb based shape memory alloys were investigated after alloyed with elements Zr, Cr and V. In artificial seawater (3.5%NaCl) and physiological solution (5%NaCl+0.1%H2O2), the results show that the alloying elements influence the corrosion behavior of Ni-Ti-Nb alloys. Generally, Zr improves the corrosion resistance of Ni-Ti-Nb alloy, Cr reduces its corrosion resistance and V does not change the property. In order to investigate the reason of the difference,the relation of the phase components and corrosion resistance of Ni-Ti-Nb based shape memory alloys were studied by element analysis and SEM.