| 摘要 |
The present invention relates to a nickel-based super heat resistant alloy and a method of manufacturing the same, and particularly, to a nickel-based super heat resistant alloy including 20 to 25 wt % of chromium (Cr), 10 to 15 wt % of molybdenum (Mo), 10 to 17 wt % of cobalt (Co), 0.01 to 0.15 wt % of carbon (C), 0.01 to 1 wt % of zirconium (Zr), 0.01 to 1 wt % of hafnium (Hf), 0.01 to 5 wt % of tantalum (Ta), 1 to 100 ppm of boron (B), 0.01 to 1 wt % of aluminum (Al), and a balance of nickel (Ni).;In the nickel-based super heat resistant alloy according to the present invention, an amount of solid solution strengthening elements (Cr, Co, Mo, or Ta) is adjusted to improve a mechanical property such as a creep property at high temperatures and Al or Ti is included in a predetermined amount to improve a corrosion property. The nickel-based super heat resistant alloy has excellent elongation, strength, and creep property at normal temperature and high temperatures, and thus it is possible to manufacture parts of a thermoelectric power plant, an aircraft, and a very high temperature reactor in various shapes on a large scale. Particularly, in a very high temperature gas nuclear power generation attracting attention as a next-generation nuclear power generation, the nickel-based super heat resistant alloy can be used for parts of a heat exchanger for heat exchanging of helium used as a primary coolant and helium used as a secondary coolant. |
| 主权项 |
1. A nickel-based super heat resistant alloy comprising:
20 to 25 wt % of chromium (Cr), 10 to 15 wt % of molybdenum (Mo), 10 to 17 wt % of cobalt (Co), 0.01 to 0.15 wt % of carbon (C), 0.01 to 1 wt % of zirconium (Zr), 0.01 to 1 wt % of hafnium (Hf), 0.01 to 5 wt % of tantalum (Ta), 1 to 100 ppm of boron (B), 0.01 to 1 wt % of aluminum (Al), and a balance of nickel (Ni). |
