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Linear Electromagnetic Stirring and Microstructures of K417 Superalloy Master Alloy Ingot
Pages: 579-583
Year: Issue:  6
Journal: Journal of Vacuum Science and Technology

Keyword:  线性电磁搅拌高温合金母合金锭质量;
Abstract: 为了提高高温合金母合金锭的质量,本文提出了在高温合金真空熔铸过程中,施加线性电磁搅拌的真空电磁铸造新技术.使用电子探针和光学显微镜,研究了在真空熔铸的凝固过程,施加工频线性电磁搅拌对K417高温合金母合金锭质量的影响.实验结果表明:在K417高温合金真空熔铸的凝固过程中施加140A的工频线性电磁搅拌,能够细化高温合金母合金锭的等轴晶组织、增加高温合金母合金锭的断面等轴晶比例、大幅减轻枝晶偏析的程度...
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