Investigation on Interface Inclusion and the Bond Behaviour of Hot-Rolled Stainless Steel Clad Plates
作者单位：Research Institute for Energy Equipment Materials Hebei University of Technology
会议名称：《“第十届中国钢铁年会”暨“第六届宝钢学术年会”》
会议日期：2015年
学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
关 键 词：hot rolled clad steel vacuum degree inclusion bond behavior
摘 要：The impurities on the bonded interface were analyzed using optical microscopy and scanning electron microscopy（SEM）, and the formation mechanism of oxides were investigated and discussed. The results show that the impurities are mainly made of oxides. The chemical composition of oxides can also be related to vacuum inside the clad metal slab, and the oxide of silicon dominates at the vacuum degree of 100 Pa or more and the oxide of aluminum at the vacuum degree of 0.01 Pa. The experimental results also indicated that oxidation also become more evident with the vacuum degree reduction, and the proportion of inclusion increase to 50% from 10% with increase in vacuum degree from 0.1Pa to near 20 Pa, which lead to the decrease of bonding strength from 440 MPa to 350 MPa. Interface bond behavior between stainless steel and carbon steel was suggested based on element distribution and microstructure evolution.