The analysis of four key materials used for disc springs (Belleville washers) based on their properties and application suitability

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1. 51CrV4: A cost-effective chromium-vanadium alloy steel offering high tensile strength, fatigue resistance, and moderate corrosion resistance. Commonly used in automotive, industrial machinery, and clamping systems but requires surface treatments in corrosive environments.

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2. 17-7 PH: Precipitation-hardened stainless steel known for excellent corrosion resistance, high strength, and fatigue resistance. Used in aerospace, defense, and marine applications due to its ability to perform in harsh and high-temperature conditions.

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3. SUS 304: Austenitic stainless steel with outstanding corrosion resistance and good formability. Suitable for food processing, medical applications, and low-load systems where durability in moist or sanitary environments is critical.

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4. Inconel 718: A nickel-chromium super-alloy with exceptional strength, heat, and corrosion resistance. Ideal for extreme environments like aerospace engines, turbines, and oil and gas equipment.

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Key Considerations:

- Load Capacity: Inconel 718 and 17-7 PH are suited for high-stress systems, while 51CrV4 and X10CrNi18-8 work in less demanding scenarios.

- Corrosion Resistance: X10CrNi18-8 and Inconel 718 excel in corrosive environments; 51CrV4 is less resistant unless treated.

- Temperature Resistance: Inconel 718 leads for high-temperature applications; 17-7 PH is suitable for moderate temperatures.

- Fatigue Life: Cyclic applications require Inconel 718 or 17-7 PH for durability.

 

The selection of material depends on the environmental and mechanical demands of the application to ensure performance, longevity, and reliability.

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