氪化技术及其应用

KRYPTONATION TECHNIQUE AND ITS APPLICATION

本文介绍了氟化技术及其应用。根据氪化金属表面^(85)Kr气体的量与温度之间的关系,可以对机器零件表面的最高工作温度和分布进行测量。测温的范围和精度是1000℃±5℃。此技术与自射线照相术结合能用作工件的失效分析,优点是能检测开口裂纹宽度0.05μm和无损检测次表面微缺陷。

This paper describes the kryptonation technique and its applications. ^(85)Kr on the surface of metals would not escape unless the surface temperatureis higher thanthe orlginal heatingtemperature. According to this pKncipal, the highest working temperature and theirdistribu- tion on the machine parts couldbe measured. The range and accuracy of the measured temperature is 1000℃±5℃. This technique combined with autoradiography could be utilized in failure analysis of the working parts, The advantages are high sensitivity, which enables the surface microcracks to be revealed with the opening width as fine as 0.05 μm, and the possibility of nondestructive detection of surbsurface microdamages.