The catalytic effect of rare earth in deep case carburization

摘要

During deep case carburization with contorllable atmosphere,the relationships are studied between content of carbon,depth of the case,rate of carburization and catalysis in the case of carburization.The results show that there are some advantages when the carburizer contains rare earth.Analyzing the trace rare earth in the case,we did not detect the existene of th rare earth.