NiTi形状记忆合金表面氧化膜的成分和结构

兵器材料科学与工程 , 2002, 25(2): 7-10. doi: 10.3969/j.issn.1004-244X.2002.02.002

NiTi形状记忆合金表面氧化膜的成分和结构

杨贤金 ^1, , 何菲 ^2, , 朱胜利 ^3, , 崔振铎 ^4,

1.天津大学材料科学与工程学院,天津,300072

2.天津大学一碳化工国家重点实验室,天津,300072

3.天津大学材料科学与工程学院,天津,300072

4.天津大学材料科学与工程学院,天津,300072

基金项目: 国家自然科学基金(59971032) 高等院校骨干教师基金(GG-805-10056-1603)

关键词： NiTi合金 , 氧化膜 , XPS , AES

Component and microstructure of oxide film on NiTi shape memory alloy

用AES和XPS研究了NiTi合金表面氧化膜的成分和结构.结果表明,NiTi合金表面主要元素有C、O、Ti、Ni等;氧化膜的最外层由TiO2和TiO及少量的Ni组成,TiO和TiO2的相对含量分别为 30.32%,69.68%;表面氧化膜下存在一层富Ni层.随表面距离的增加,TiO2和TiO的含量逐渐减少,Ti的含量增加,而Ni一直没有价态的变化.

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NiTi形状记忆合金表面氧化膜的成分和结构

Component and microstructure of oxide film on NiTi shape memory alloy

参考文献