K/Na-Si和K/Na-Mo对轧辊用高速钢组织及性能的影响  

Effect of K/Na-Si and K/Na-Mo Dual-Modification on Structure and Property of High-Speed Steel Used for Mill Roll

作　　者：焦金玲[1] 杨华[1] 魏代斌[1] 

机构地区：[1]山东大学材料液态结构及其遗传性教育部重点实验室,山东济南250061

出　　处：《铸造》2007年第8期872-874,共3页Foundry

摘　　要：在轧辊用铸造高速钢中添加K/Na-Si和K/Na-Mo进行变质处理,对试样分别进行高倍视频显微镜(HSVM)分析及力学性能测试。结果表明,高速钢经二次复合变质处理后,晶粒明显细化,组织更加均匀,共晶碳化物由网状分布变为块状和团球状,冲击韧性及耐磨性均明显提高。The dual-modification effect of K/Na-Si and K/Na-Mo on as-cast high-speed steel（HSS）used for rolls is researched and the effects on the structures and properties of as-cast HSS are also analyzed. The results show that the structures of HSS dual-modified by K/Na-Si and K/Na-Mo were obviously refined, the morphologies were more homogeneous, and the eutectic carbide networks were changed into spherical. After modification, the impact toughness was largely increased; all mechanical properties of inoculation HSS were close to that of forging HSS.

关 键 词：高速钢 轧辊 二次复合变质 均匀化 力学性能 

分 类 号：TG156.6[金属学及工艺—热处理]