1. Aerospace

Nickel-based alloys exhibit exceptional oxidation resistance, creep resistance, and fatigue resistance in high-temperature and high-pressure environments. They are used in:

• Aerospace engines (e.g., turbine blades, combustion chambers, nozzles, turbine discs)
• Rocket engines (e.g., nozzles, combustion chambers)
• Spacecraft thermal protection systems

2. Energy Industry

Nickel-based alloys are widely used in extreme environments due to their excellent corrosion resistance:

• Nuclear power plants (e.g., steam generators, piping systems, heat exchangers)
• Gas turbines (high-temperature components such as turbine discs and blades)
• Geothermal energy equipment (e.g., wellhead piping, heat exchangers)
• Oil and gas industry (e.g., subsea pipelines, catalytic cracking units, refinery equipment)

3. Chemical Industry & Corrosive Environments

With strong acid and alkali corrosion resistance, nickel-based alloys are used in:

• Chemical reaction vessels
• Heat exchangers and condensers
• Pipelines for acidic media (such as hydrochloric acid, sulfuric acid, hydrofluoric acid)
• Catalyst support structures

4. Marine Engineering

Nickel-based alloys effectively resist corrosion, pitting, and stress corrosion cracking in high-salinity, high-humidity marine environments:

• Seawater desalination equipment
• Offshore oil drilling platforms
• Deep-sea pipelines and equipment

5. Electronics & Electrical Power

Nickel-based alloys offer good electrical conductivity and high-temperature resistance, making them useful in:

• Resistor materials (e.g., Constantan, nickel-chromium alloys)
• Electronic components (e.g., nickel-based superalloys in microelectronics)
• Fuel cells (e.g., electrodes for high-temperature fuel cells)

6. Medical Industry

Due to their biocompatibility and corrosion resistance, nickel-based alloys are widely used in medical devices:

• Dental materials (e.g., crowns, brackets)
• Artificial joints (e.g., knee and hip replacements)
• Surgical instruments