Effect of High-Energy-Density Pulse Current on Solidification Microstructure of FeCrNi Alloy

Authors

  • Fucheng ZHANG∗, Ming ZHANG, Bo LV, Jianhui LI State Key Laboratory of Metastable Materials Science and Technology, Yanshan University

Keywords:

pulse current, microstructure, solidification, FeCrNi alloy, refinement.

Abstract

High energy density pulse current (HEDPC) treatment was used to refine the solidification microstructure of the
austenite-ferrite two phases Fe70Cr18Ni12 alloy. It show that the austenitic grain size of the alloy can be reduced in two
orders of magnitude to 0.6 μm from 120 μm, and the size of the ferrite phase can be refined to nanometer scale after the
HEDPC treatment; the suitable start temperature of the HEDPC treatment is at about melting point of the alloy, the
HEDPC treatment can change the relative content of austenite and ferrite phases of the alloy.

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Published

2007-06-11

Issue

Vol. 13 No. 2 (2007)

Section

METALS, ALLOYS, COATINGS

License

 

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