Ti-Ni合金界面扩散层厚度与温度的关系
Relationship Between Temperature and Thickness of Diffusion Layer in Ti-Ni Alloy
吕玉荣1, 李世春2
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作者单位：(1. 鹤壁职业技术学院 材料工程系, 河南 鹤壁 458030; 2. 中国石油大学(华东) 机电工程学院, 山东 东营 257061)
中文关键字：Ti-Ni扩散偶； 相界面； 扩散层
英文关键字：Ti-Ni diffusion couple; phase interface; diffusion layer
中文摘要：采用“铆钉法”制备了Ti-Ni扩散偶，即将预处理后的镍丝嵌入到块状钛基体中，制备包含“准相界面”的样品。观察在500～700 ℃真空烧结时钛镍界面的扩散情况，总结了烧结温度对扩散层厚度的影响。研究表明，扩散层的厚度随烧结温度的升高而增厚，且温度与厚度满足指数变化关系。
英文摘要：The Ti-Ni diffusion couple was prepared by mechanical method. A nickel wire was riveted into titanium matrix. The prepared specimens were sintered in vacuum annealing furnace at the temperature from 500 ℃ to 700 ℃ for 150 h. The diffusion layer was measured by optical microscope (OM). The results show that the thickness of the diffusion layer increases obviously with the increase of sintering temperature and annealing time, and the relationship between the annealing temperature and the layer's thickness satisfies an exponent change.