Abstract
Alloys of Ru-Al-Cr with compositions between Ru-10Al-35Cr and Ru-3Al-39Cr (at.%)
were directionally solidified and heat treated to produce single phase hcp-Ru(Cr,Al) and two phase
B2-hcp microstructures. The room temperature fracture toughness, tensile behavior, and cyclic
oxidation behavior at 1100°C were investigated and compared to previous results measured from
RuAl and Ru-Al-Mo alloys. For microstructures consisting of a Ru(Cr,Al) matrix with fine RuAl
precipitate, a good room temperature fracture toughness, tensile ductility, and oxidation resistance
at 1100°C were measured.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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