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旋转电磁搅拌对K417高温合金母合金锭质量的影响

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Indexed by:期刊论文

Date of Publication:2011-02-10

Journal:热加工工艺

Included Journals:PKU、ISTIC、CSCD

Volume:40

Issue:3

Page Number:14-17,21

ISSN No.:1001-3814

Key Words:旋转电磁搅拌;高温合金;母合金锭;非金属夹杂物;中心缩孔

Abstract:使用电子探针、扫描电子显微镜和光学显微镜研究了在真空熔铸凝固过程施加工频旋转电磁搅拌对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合理施加工频旋转电磁搅拌,能够细化和增加高温合金母合金锭的等轴晶组织,减少高温合金母合金锭中非金属夹杂物的含量,并能将高温合金母合金锭的中心缩孔的比率从54%降低到35%,从而大幅提高了K417高温合金母合金锭的质量.

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