Haynes 188 superalloy is a nickel-based alloy with excellent high-temperature properties. It is primarily used in high-temperature, high-pressure environments such as aircraft engines and gas turbines. The alloy is designed to provide excellent high-temperature strength, oxidation resistance, and corrosion resistance. Haynes 188 is particularly suitable for critical components that require prolonged operation at high temperatures, such as gas turbine blades and high-temperature components in aircraft engines. This article will discuss the chemical composition, physical and mechanical properties, and application areas of Haynes 188 superalloy in detail.
Chemical Composition of Haynes 188 High-Temperature Alloy
The chemical composition of Haynes 188 high-temperature alloy primarily consists of nickel, chromium, molybdenum, and cobalt. Nickel forms the matrix, while the addition of other alloying elements enhances the alloy's oxidation resistance, corrosion resistance, and high-temperature strength. The following is the main chemical composition of Haynes 188 high-temperature alloy:
| element | content (%) |
|---|---|
| (Ni) | 55-60 |
| (Cr) | 18-22 |
| (Mo) | 3-4 |
| (Co) | 8-10 |
| (Al) | 1.5-2 |
| (Fe) | 10-15 |
| (Ti) | 1.5-2 |
| (C) | 0.1 |