Analysis of WC Dissolution Phenomenon Happened in TIG Welded Joint of Cemented Carbide and Invar Alloy

摘要：

　　In current research,WC dissolution phenomenon happened in TIG welds was investigated and discussed.And the element diffusion was studied using area-scanning method.The results showed that the WC dissolution phenomenon always happened near WC-Co/Welded seam interface.Moreover,the amount of WC dissolved in welds became less from WC-Co,welds to invar alloys.WC dissolution happened in welded seam induced by tungsten arc led to the WC grain growth (60μm or so) and WC shape changes.The grain boundary (GB) between different WC particles during WC aggregation was also confirmed and WC grain growth was owed to the WC aggregation during the processing of WC dissolution.

关键词： Hard Metal WC Dissolution Invar Alloys TIG welding

作者: Xu Pei-quan Ma Ding Ma Chun-wei

作者单位: College of Materials Engineering, Shanghai University of Engineering Science, Shanghai, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 896-899

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）