摘要
采用真空热压设备制备了铜-碳钢层状复合材料,分析了扩散温度与保温时间对其界面扩散行为的影响,并建立扩散模型,计算了不同扩散温度和时间下Cu向Fe中的扩散距离。结果表明,铜-碳钢结合紧密,形成了明显的扩散层;随着扩散温度由730℃升高到810、856和912℃,Cu/Fe-C(1.2 mass%)界面的Cu、Fe元素的互扩散距离呈先减小后增加的趋势;当扩散温度为856℃时,延长保温时间Cu/Fe-C(0.2 mass%)界面扩散层厚度均在1μm左右;理论计算结果与实验数据的对比发现,实际扩散距离小于理论计算值,这是由于Cu/Fe-C(0.2 mass%)界面的扩散行为受到制备工艺、钢材含碳量等多种因素影响。
Copper-carbon steel laminated composites were prepared using vacuum hot pressing equipment.The effects of diffusion temperature and holding time on their interfacial diffusion behavior were analyzed,and a diffusion model was established to calculate the diffusion distance of Cu into Fe at different diffusion temperatures and time.The results show that copper-carbon steel is tightly bonded,forming an evident diffusion layer.As the diffusion temperature increases from 730℃to 810℃,856℃,and 912℃,the interdiffusion distance of Cu and Fe elements at the Cu/Fe-C(1.2 mass%)interface shows a trend of first decreasing and then increasing.The interdiffusion distance of Cu and Fe at the Cu/Fe-C(1.2 mass%)interface exhibits a decrease and subsequent increase with the increase of diffusion temperature from 730℃to 810,856 and 912℃.When the diffusion temperature is 856℃,the thickness of the Cu/Fe-C(0.2 mass%)interface diffusion layer is about 1μm when the holding time is increased.The comparison between theoretical calculation results and experimental data shows that the actual diffusion distance is smaller than the theoretical calculation value.This is because the diffusion behavior of Cu/Fe-C(0.2 mass%)interface is influenced by various factors such as preparation process and carbon content of steel.
作者
历长云
孙少祥
张珊珊
唐玲
高琦
许磊
LI Chang-yun;SUN Shao-xiang;ZHANG Shan-shan;TANG Ling;GAO Qi;XU Lei(Faculty of Engineering,China University of Petroleum-Beijing at Karamay,Karamay 834000,China;School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China)
出处
《材料热处理学报》
CAS
CSCD
北大核心
2024年第12期39-47,共9页
Transactions of Materials and Heat Treatment
基金
克拉玛依市科技计划项目(20232023hjcxrc0008,20232023hjcxrc0016)
克拉玛依市创新杰出青年人才项目(XQZX20230103)
“天山英才”培养计划(2023TSYCJC0033)。
关键词
铜-碳钢层状复合材料
界面扩散
扩散温度
扩散距离
扩散模型
copper-carbon steel laminated composites
interfacial diffusion
diffusion temperature
diffusion distance
diffusion model
