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摘要
An aluminum diffuse-alloyed layer on the austenitic refractory steel Cr30Ni20NRE designed for electric radiant tubes was investigated. A thin pre-coated layer was first formed on the steel's surface with the electrolytic activated flux technique. Thereafter, the austenitic steel was hot-dipped in the aluminum bath at 730 degrees C for 5 min, and then diffuse treated at 960 degrees C for 6 hours in an atmosphere containing NH4Cl Plus CeO2. Finally, a dense diffused layer that had a good metallurgical combination with the steel substrate, accompanied by numbers of homogenously dispersed particle phase containing Cr and Si, was observed.
- 出版日期2008
- 单位江苏大学
