The results show that the carbon content and carbusintering temperature are the main parameters that influence the formation of gradient structure.
结果表明：在本实验条件下，初始碳含量与渗碳温度是影响梯度结构的主要参数；
2
GDS testing results indicate the carbon content of the surface reaches 29.8%, the carbon content in the alloyed layer emerges in gradient distribution too.
Iridium and carbon material has combined, and the ingredient forms gradient transition from infiltrated layer to surface layer and has no catastrophe of ingredient and mechanical property.