材料期刊网

Oxidation Behaviour of Laser Remelted Cr-containing Steels

Guanyan FU Weitao WU Maocai WANG Shenglong ZHU Corrosion science Lab , Institute of Corrosion and Protection of Metals , Academia Sinica , Shenyang 110015 , China

材料科学技术（英）

Laser surface remelting of steels with different Cr contents has been performed by using a CO_2 laser. The results of oxidation tests showed that the effects of laser remelting on the oxidation resistance of Cr-containing steels have close relation to the Cr contents and microstructures of the steels. The re- sistance to high temperature oxidation of 18-8 and HK40 at 1273 K can be obviously improved by laser remelting, whereas laser remelting showed little effect on the oxidation resistance of Fe-6Cr and Cr30 at 1173-1273 K.

关键词: laser remelting , null , null