Nimonic 105

About Nimonic 105 Superalloy

Name and Equivalent Name

Nimonic 105, also known as Nickel-Chromium-Cobalt Alloy 105, is identified by UNS N13120. It is referenced under various standards, including ASTM B637, DIN/EN 2.4634, GB/T 14992 (GH290), and AMS 5830. It is widely used for high-temperature applications requiring exceptional thermal and mechanical stability.

Nimonic 105 Basic Introduction

Nimonic 105 is a nickel-based superalloy designed for high-performance applications with extreme thermal and mechanical stress. It exhibits excellent resistance to creep and oxidation, making it ideal for aerospace components such as turbine blades, exhaust valves, and industrial gas turbines.

The alloy's superior mechanical properties allow it to retain strength at temperatures up to 1000°C. Nimonic 105’s fatigue resistance makes it suitable for cyclic applications where components undergo repeated thermal and mechanical loads over extended periods.

Alternative Superalloys of Nimonic 105

Rene 41 and Inconel 718 are alternatives when high fatigue strength is required. Nimonic 90 offers similar thermal stability but with slightly different mechanical properties. Waspaloy can be used in environments with fluctuating temperatures.

Hastelloy X is preferred for oxidation resistance, while Incoloy 800 can be a viable option for less extreme conditions. Material selection depends on specific operational and environmental requirements.

Nimonic 105 Design Intention

Nimonic 105 is designed to provide high mechanical strength, creep resistance, and thermal stability under extreme conditions. The alloy is optimized for applications that demand long service life, such as gas turbines and jet engines with minimal degradation.

The high cobalt and aluminum content enhance the alloy’s mechanical properties, while chromium offers excellent oxidation resistance. Nimonic 105’s design ensures it performs well in components subjected to high thermal cycles and stress over extended durations.

Nimonic 105 Chemical Composition

The alloy's chemical composition balances strength, oxidation resistance, and high-temperature performance. The high cobalt content boosts thermal stability, while aluminum enhances mechanical strength through precipitation hardening.

Nimonic 105 Physical Properties

Nimonic 105’s physical properties ensure stability and mechanical strength at elevated temperatures, making it ideal for demanding environments.

Metallographic Structure of Nimonic 105 Superalloy

Nimonic 105 features a face-centered cubic (FCC) crystal structure typical of nickel-based alloys. The alloy’s aluminum and titanium content contribute to forming gamma prime (γ') precipitates, enhancing its strength through precipitation hardening.

This alloy maintains microstructural stability under prolonged exposure to temperatures up to 1000°C, preventing grain boundary sliding and phase transformation. The stable microstructure ensures the alloy retains mechanical strength and fatigue resistance in high-stress environments, such as turbines and jet engines.

Nimonic 105 Mechanical Properties

Nimonic 105 provides outstanding mechanical strength, creep resistance, and thermal fatigue resistance for high-temperature applications.

Key Features of Nimonic 105 Superalloy

1. High-Temperature Strength Nimonic 105 retains its mechanical strength at temperatures up to 1000°C, making it ideal for aerospace and energy components exposed to continuous heat stress.

2. Creep and Fatigue Resistance The alloy offers excellent creep resistance, ensuring minimal deformation under prolonged stress. Its fatigue strength makes it reliable for cyclic applications such as turbines and jet engines.

3. Oxidation Resistance Nimonic 105’s chromium content provides excellent resistance to oxidation, ensuring durability in high-temperature environments where exposure to air is continuous.

4. Thermal Stability The alloy maintains structural stability under extreme thermal cycles, making it ideal for components subjected to continuous heating and cooling. This property reduces the risk of failure over extended service life.

5. Precipitation Hardening The presence of aluminum and titanium promotes precipitation hardening, enhancing the alloy’s mechanical strength. This feature makes Nimonic 105 suitable for critical components that demand superior mechanical performance.

Nimonic 105 Superalloy’s Machinability

Nimonic 105 is compatible with Vacuum Investment Casting due to its ability to retain strength and oxidation resistance, making it suitable for complex high-temperature components like turbine blades.

This alloy is not typically used in Single Crystal Casting as it lacks the crystallographic properties required in high-performance jet engines for single-crystal applications.

Nimonic 105 can be used in Equiaxed Crystal Casting to achieve isotropic mechanical properties, making it ideal for components subjected to uniform stress.

It also performs well with Superalloy Directional Casting, where aligned grain structures improve mechanical strength and resistance to creep in demanding environments.

Nimonic 105 is unsuitable for Powder Metallurgy Turbine Disc, as the alloy’s properties are optimized for casting and forging rather than powder-based consolidation.

The alloy is highly effective in Superalloy Precision Forging, providing exceptional mechanical strength for critical aerospace components such as turbine discs and exhaust systems.

Due to its high melting point, Superalloy 3D Printing is not recommended for Nimonic 105, as additive manufacturing processes struggle to handle such temperatures.

Nimonic 105 offers excellent machinability, making it well-suited for CNC Machining of high-precision components, ensuring dimensional stability and surface quality.

The alloy is compatible with Superalloy Welding, but advanced techniques are required to avoid cracking due to its high cobalt content.

Nimonic 105 responds well to Hot Isostatic Pressing (HIP), enhancing fatigue strength, reducing internal voids, and improving mechanical performance.

Nimonic 105 Superalloy Applications

In Aerospace and Aviation, Nimonic 105 is used for turbine blades, exhaust valves, and engine components, where exceptional thermal stability and fatigue resistance are required.

For Power Generation, Nimonic 105 ensures durability in gas turbines, heat exchangers, and industrial boilers operating under extreme thermal stress.

In the Oil and Gas industry, this alloy is used in high-temperature valves, pipelines, and drilling tools, providing mechanical strength and corrosion resistance.

The alloy plays a vital role in Energy systems, including furnaces and turbines, where thermal stability ensures continuous operation.

Nimonic 105 offers corrosion resistance in Marine applications, making it suitable for engine components, exhaust systems, and propulsion systems exposed to seawater.

In Mining, the alloy provides durability for pump housings, drill bits, and components subjected to high wear and mechanical stress.

For Automotive applications, Nimonic 105 is used in turbochargers and exhaust systems to withstand high temperatures and mechanical loads.

The Chemical Processing industry benefits from the alloy’s resistance to corrosion, making it suitable for reactors and heat exchangers operating under harsh conditions.

In the Pharmaceutical and Food sectors, Nimonic 105 is ideal for valves, pumps, and equipment that require non-reactive, heat-resistant properties.

The alloy is used in Military and Defense for components in jet engines and missile systems, where high fatigue strength and thermal resistance are critical.

Nuclear industries rely on Nimonic 105 for its reliability in reactors and heat exchangers, where radiation exposure and high temperatures are present.

When to Choose Nimonic 105 Superalloy

Nimonic 105 is ideal for custom superalloy parts requiring high mechanical strength, thermal stability, and creep resistance. It is suitable for aerospace, power generation, and chemical processing industries, where components must withstand continuous heat and mechanical loads.

This alloy is particularly beneficial for applications requiring durability under extreme conditions, such as turbine blades, heat exchangers, and industrial furnaces. Nimonic 105 ensures consistent performance with minimal maintenance, making it a cost-effective solution for long-term operations.

Explore our custom superalloy parts service for tailored solutions to find the right material for your industry’s specific needs.