Sample A whose surface has layer structure via oxidize-deoxidize treatment and sample B which is decarbonization are put into resistance furnace for carbonization and quencher under hydrogen.

• 将其中试样A通过氧化-还原处理,表面具有层状结构,与另一脱碳试样B一起放入改造后的电阻炉内在通氢气的气氛中进行渗碳淬火。