The effect of cooling rate after high temperature solution treatment on tensile and stress rupture properties of a directionally solidified superalloy was investigated The size of γ′particle in the alloy was increased with the decrease of cooling rate after solution treatment Ultimate strengh and stress-rupture life was increased with the decrease of the size of γ′particle in the alloy while tensile elongation δ% was increased.
Key words
directionally solidi /
γ′particle sise /
strengh /
cooling rates
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References
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Footnotes
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