Effect of Electromagnetic Stirring on the Quality of K417 Superalloy Ingots
The effect of electromagnetic stirring on the inner quality of K417 superalloy ingots is studied with EPMA and optical microscope.The results show that while an electromagnetic stirring with 50Hz frequency and 80A current is imposed,the equiax crystals of K417 superalloy ingots can be effectively refined and increased,and the central shrinkage porosity and the dendritic segregation of K417 superalloy ingots are greatly reduced,so the inner quality of K417 superalloy ingots is obviously improved.
作 者： Jin Wenzhong Li Tingju Yin Guomao 作者单位： State Key Laboratory of Materials Modification & School of Materials Science and Engineering,Dalian University of Technology 刊 名： 航空制造技术 ISTIC 英文刊名： AERONAUTICAL MANUFACTURING TECHNOLOGY 年，卷(期)： 2007 ""(z1) 分类号： V2 关键词： Electromagnetic stirring Superalloy Ingots Quality