Y2O3对半钢轧辊激光熔覆层的影响
Influence of Y2O3 on the Laser Cladding Layer for Semi-Steel Rolls
作者: 刘厚权 :首钢贵阳特殊钢有限责任公司,贵阳;
关键词: Y2O3; 轧辊; 激光熔覆; 硬度; 耐磨性; Y2O3; Rolls; Laser Cladding; Hardness; Wear Resistance
摘要:Abstract: When adding 1.0 wt% rare earth oxide Y2O3 to laser cladding alloy powder on the surface of semi- steel rolls, it made a significant effect on solid fusion strengthening and dispersion strengthening, the microstructure of cladding layer was highly refined, and had a significant role in grain refine-ment and toughness. In addition, the dispersion of carbide and its uniform distribution could pre-vent grain growth effectively, avoided the dramatical increasing of lamellar martensite in the heat affected zone, thus prevented the generation of cracks effectively. It largely improved the semi- steel rolls wear resistance, hardness, resistance to cold and hot fatigue strength, so it obtained good using effect.
文章引用: 刘厚权 (2014) Y2O3对半钢轧辊激光熔覆层的影响。 材料科学, 4, 239-245. doi: 10.12677/MS.2014.46034
参考文献
[1] 刘其斌 (2007) 激光加工技术及其应用. 冶金工业出版社, 北京.
[2] 张永康 (2004) 激光加工技术. 化学工业出版社, 北京.
[3] 胡传炘 (2004) 表面处理手册. 北京工业大学出版社, 北京.
[4] 束德林 (2006) 工程材料力学性能. 机械工业出版社, 北京.
[5] 谢建新 (2004) 材料加工新技术与新工艺学. 冶金工业出版社, 北京.
[6] 徐洲 (2004) 材料加工原理. 第二版, 科学出版社, 北京.
[7] 马运哲, 董世运, 徐滨士 (2006) CeO2对激光熔覆Ni基合金涂层组织与性能的影响. 中国表面工程, 19, 7-11.