Article ID Journal Published Year Pages File Type
1622071 Journal of Alloys and Compounds 2009 5 Pages PDF
Abstract

This paper explores the effects of solution treatment on hot workability and mechanical properties of a Ni3Al-based alloy named IC-221M. As-cast IC-221M alloy cracked during the hot working process. Optical and scanning electron microscopy revealed that cracks initiated and propagated through γ+Ni5Zr eutectic phase during hot working. This eutectic phase reduced remarkably after the heat treatment at 1100 °C for 20 h as revealed by the thermal analysis and SEM micrographs. The 20 h solution treated alloy could be hot worked without cracking even at such high strain rates as 100/s. Also, compressive yield strength of the solution treated alloy at temperatures above 700 °C was higher than that of the as-cast alloy.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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