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Indexed by:Journal Papers

Date of Publication:2015-05-01

Journal:HIGH TEMPERATURE MATERIALS AND PROCESSES

Included Journals:SCIE、EI

Volume:34

Issue:3

Page Number:207-211

ISSN No.:0334-6455

Key Words:superalloys castings; vacuum castings; multiple-electromagnetic field; solidification structure

Abstract:IN100 superalloy castings were vacuum cast with the application of multi-electromagnetic field. The effect of multiple-electromagnetic field on the solidification structure of IN100 superalloy castings has been studied. The results show that with the application of the multiple-electromagnetic field composed of the main frequency rotary electromagnetic field with 60A current and the steady direct current electromagnetic field with 290A current, the shrinkage porosity of IN100 superalloy castings is greatly improved and the fine equiaxed grain fraction of IN100 superalloy castings is increased to 100%. Moreover, the action mechanism of multiple-electromagnetic field is discussed to explain its effect on improving the solidification structure of IN100 superalloy castings.