双金属复合锤头界面特征分析  

Interface Characteristics Research of Bi-metal Composite Hammer

作　　者：闫志飞[1] 王婵[2] 吕建军[1] 田迎春[1] 张鸣一 李淑利[1] 

机构地区：[1]中国兵器工业集团第五二研究所,内蒙古包头014034 [2]内蒙古科技大学,内蒙古包头014010

出　　处：《铸造技术》2016年第3期504-506,共3页Foundry Technology

摘　　要：以消失模铸造工艺生产的液-液复合锤头为研究对象,利用万能试验机、扫描电镜和显微硬度仪对复合锤头的界面特征进行了研究。结果表明,复合锤头结合界面为冶金结合,合金元素在高温熔融状态下相互扩散,造成材料硬度的平缓过渡,高铬铸铁部分硬度值为55~60 HRC,碳钢部分硬度值为40~50 HRC。Taking bi-metal composite hammer produced by lost foam cast method as research object, the interface characteristics of composite hammer were studied using universal testing machine, scanning electron microscope and micro hardness tester. The results show that the interface of the composite hammer is metallurgical combination. The alloy elements mutually diffuse under the high temperature molten state, which causes a smooth transition of the material hardness. The hardness of the high chromium cast iron partly is 55~65 HRC, and the hardness of the carbon steel is 40~50 HRC.

关 键 词：消失模铸造 界面 双金属 锤头 

分 类 号：TG249.6[金属学及工艺—铸造]