电磁离心铸造对高铬铸铁冲击韧度的影响  

Influence of Electromagnetic Centrifugal Casting on High Chromium Casting Iron Impact Toughness

作　　者：孙凯[1] 杨雪[2] 赵琳[3] 

机构地区：[1]辽宁工程技术大学创新实践学院,辽宁阜新123000 [2]辽宁工程技术大学建筑工程学院建筑环境与设备工程专业,辽宁阜新123000 [3]辽宁工程技术大学材料科学与工程学院成型与控制专业,辽宁阜新123000

出　　处：《热加工工艺》2012年第11期35-36,共2页Hot Working Technology

摘　　要：为了提高高铬铸铁的冲击韧性,使用电磁离心铸造方法对高铬铸铁进行浇铸。结果表明:电磁离心铸造获得试样的组织明显细化,晶粒数量增多,晶粒尺寸变小,冲击韧度等力学性能提高。当离心转速为1800r/min,磁感应强度为0.4T时,电磁离心铸造铸态试样的冲击韧度为6.9J/cm2。冲击韧度较常规试样提高。In order to improve the impact toughness of high chromium cast iron,centrifugal casting method was used on electromagnetic high chromium cast iron casting.The results show that the structure under electromagnetic centrifugal casting is refined;the number of grains increases;the grain size becomes smaller;the impact toughness and other mechanical performance are improved.When the centrifugal speed is 1800 r/min,the magnetic induction strength of 0.4T,the impact toughness after electromagnetic centrifugal casting cast is 6.9.Toughness increases compared with conventional samples.

关 键 词：电磁离心铸造 磁感强度 冲击韧度 

分 类 号：TG249.4[金属学及工艺—铸造]