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.