摘要
将打磨后的Al丝嵌入到Co块中,制作Co-Al扩散偶样品。然后将其放入真空退火炉中进行烧结,观察在500℃~600℃范围内不同烧结时间下钴铝界面扩散层厚度的变化。结果表明,扩散层的厚度随烧结温度的提高和保温时间的延长而增厚,并且温度比保温时间的影响显著。显微镜下明显看到Co-Al扩散层由4个不同的亚层组成。
The polished Al wire was embedded in the Co block to make a Co-Al diffusion couple sample.Then put it into a vacuum annealing furnace for sintering,and observe the change of the thickness of the cobalt-aluminum interface diffusion layer under different sintering time in the range of 500℃to 600℃.The results show that the thickness of the diffusion layer increases with the increase of sintering temperature and holding time,and the influence of temperature is more significant than holding time.Under the microscope,it is obvious that the Co-Al diffusion layer is composed of 4 different sublayers.
作者
吕玉荣
LüYurong(School of Traffic and Materials Engineering,Hebi Polytechnic,Henan Hebi458030)
基金
国家自然科学基金资助项目(50371059)。
关键词
Co-Al扩散偶
相界面
扩散层
金属间化合物
Co-Al diffusion couples
phase interface
diffusion layer
intermetallic compound
