Real-Time Observation of Porosity Formation during Directional Solidification in Al-7Si-0.3Mg Casting Alloy

摘要：

Using micro-focus radiography and unidirectional solidification technology, the evolution process of porosities was observed in-situ during solidification of Al-7Si-o. 3Mg alloy. Irregular porosities could not be regarded as shrinkage driven since they are gas porosities at the early stage of formation process. Phenomena such as floating of porosities were observed, expecting they would impact the final porosity percentage in castings. Based on the real-time observation results, activating mechanism was deduced to explAln the nucleation of porosities.

关键词： real-time observation porosity formation Al-Si casting alloy

作者: Zhao Lei Pan Ye Liao Hengcheng

作者单位: School of Materials Science and Engineering, Southeast University, Jiangsu Key Laboratory for Advanc School of Materials Science and Engineering, Southeast University,Jiangsu Key Laboratory for Advance

会议类型: 国际会议

会议名称: 69th World Foundry Congress(第69届世界铸造会议 WFC 2010)

会议地点: 杭州

会议语种:英文

页码: 242-246

在线出版日期: 2010-10-16（万方平台首次上网日期，不代表论文的发表时间）