| 摘要 |
A heat-resistant superalloy having chromium, aluminum, cobalt, titanium, and ruthenium added thereto as main components, and having a subcomponent(s) optionally added thereto, the remainder, excluding the main components and the subcomponent(s), comprising nickel and an impurity inevitably contained,
wherein the amount of the chromium added is 2 to 25% by mass,the amount of the aluminum added is 0.2 to 7% by mass,the amount of the cobalt added is 19.5 to 55% by mass,the amount of the titanium added is [0.17×(% by mass for cobalt-23)+3] to [0.17×(% by mass for cobalt-20)+7]% by mass (with the proviso that the amount of the titanium added is 5.1% by mass or more), andthe amount of the ruthenium added is 0.1 to 10% by mass. |
