| 摘要 |
A heat-resistant Ni-base single crystal alloy, suitable as a material for blades and vanes of gas turbines or jet engines, consists of, by weight, 5 to 10% of Co, 5 to 10% of Cr, 9 to 15% of W, 1 to 5% of Mo, 4.5 to 6% of Al, 5 to 10% of Ta, and the balance substantially of Ni with the total proportion of W, Mo and Ta being 17 to 24%, and is produced by directional solidification of a melt of the above-specified composition, followed by solution treatment and aging treatment.
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