航空材料学报2012，Vol.32Issue(4)：53-56,4.DOI:10.3969/j.issn.1005-5053.2012.4.010
Ni47Ti44Nb9形状记忆合金耐蚀性能和抗氧化性能研究
Corrosion and High Temperature Oxidation Resistance of Ni47 Ti44 Nb9 Shape Memory Alloy
摘要
Abstract
The oxidation resistance and corrosion resistance of the Ni44Ti47Nb9 shape memory alloy were studied. The result shows that Ni47Ti44Nb9 alloy exhibits good oxidation resistance at 450℃. Further more, the oxidation curve of Ni47Ti44Nb9 alloy follows the parabolic law in the temperature range of 600 - 800℃. Experimental results indicate that a multi-layer scale, which is composed of outer layer and transition layer, is formed on the surface of Ni47Ti44Nb9 alloy after high temperature oxidation. The results of electrochemical corrosion test show that the corrosion resistance of Ni47 Ti44 Nb9 alloy increases and the corrosion potential shifts positively as the temperature and the NaCl content of NaCl solutions decreases.关键词
NiTiNb/形状记忆合金/腐蚀/高温氧化/电化学阻抗谱(EIS)Key words
NiTiNb/shape memory alloy/high temperature oxidation/corrosion/electrochemical impedence spectrum分类
矿业与冶金引用本文复制引用
王二敏,倪志铭,洪起虎,杨根林,韩劲..Ni47Ti44Nb9形状记忆合金耐蚀性能和抗氧化性能研究[J].航空材料学报,2012,32(4):53-56,4.基金项目
预研先进制造技术(51318040105) （51318040105）
