Paper Title:
Research on Casting of GH3030 Superalloy with Electromagnetic Stirring
  Abstract

The effect of electromagnetic stirring on the inner quality and solidification microstructure of the GH 3030 superalloy ingots was investigated by casting experiments. As we know from the experiments, the solidification microstructure of GH3030 is the single-phase of austenite. With the electromagnetic stirring (EMS) the grains of the GH3030 ingots become finer significantly and the average grain size decrease as the currents of EMS increase. The results also show that the macrostructure of the ingots was improved significantly. The length of the shrinkage cavity with EMS become smaller and the porosity disappeared while the ingots without EMS have much porosity. And yet the macrosegregation always exists whether with EMS or not, but the chromium in the ingots with EMS is better distributed, and consequently the macrosegregation of chromium is inhibited.

  Info
Periodical
Advanced Materials Research (Volumes 146-147)
Edited by
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Pages
105-108
DOI
10.4028/www.scientific.net/AMR.146-147.105
Citation
G. F. Zhan, E. G. Wang, J. C. He, "Research on Casting of GH3030 Superalloy with Electromagnetic Stirring", Advanced Materials Research, Vols. 146-147, pp. 105-108, 2011
Online since
October 2010
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Price
$32.00
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