真空条件下高速钢中脱碳层的变化

Change of Decarbonized Depth for High Speed Steel in Vacuum

在真空条件下对3种有初脱碳层的高速钢进行了退火实验，考察了在无氧的条件下高速钢中碳的扩散，指出了高速钢的脱碳与高速钢中碳化物的分解和游离碳扩散有关．

In vacuum, several high speed steels which have decarbonization layer were annealed and the diffosion of carbon in high speed steel were reviewed in free-oxygen condition. The decarbonization of high speed steel relate to the decompound of carbonization and the diffusion of free carbon in the high speed steel.