Study on Carburizing of Low Alloys Steel Containing RE at High-Temperature and Short-Term

• 作 者: 刘建华 张瑞军
• 机 构: State Key Laboratory of Metastable Materials Science and Technology Yanshan University,State Key La
• 出 处: Journal of Rare Earths
• 发表日期: 2004年期
• 关键词: microhardness immersed preliminarily shorter remaining hardness solubility visco

Low alloys steel containing RE specimens were carburized in liquid cast-iron at different temperatures and time, and the microstructure, depth and the microhardness of carburized layer were also analyzed. The result shows that the high-temperature and short-term carburizing in liquid cast-iron can gain deeper carburized layer in shorter time, the depth of carburized layer of specimens immersed for 30 s in 1250 and 1280 ℃ liquid cast-iron is about 219 and 237 μm. At the same time, the carburizing technology was discussed preliminarily.

Low alloys steel containing RE specimens were carburized in liquid cast-iron at different temperatures and time, and the microstructure, depth and the microhardness of carburized layer were also analyzed. The result shows that the high-temperature and short-term carburizing in liquid cast -iron can be higher carburized layer in shorter time, the depth of carburized layer of specimens immersed for 30 seconds in 1250 and 1280 ° C liquid cast-iron is about 219 and 237 μm. At the same time, the carburizing technology was discussed preliminarily.