Can you conduct fatigue testing at elevated temperatures or in corrosive environments?

Elevated-temperature or corrosion-fatigue testing can be planned when the equipment, specimen, environment, and control method represent the service duty. A generic chamber temperature or salt solution does not prove that the part has been qualified.

Define temperature history, medium, concentration, pH, stress or strain control, frequency, surface state, and failure criterion. Record actual specimen temperature and environment during the run, then compare the result with the design spectrum and disposition rule before using it for service-life decisions.

Comprehensive Fatigue Testing Capabilities

Yes, we specialize in conducting sophisticated fatigue testing under simulated service conditions, including elevated temperatures and corrosive environments. This advanced testing is crucial for validating component performance in real-world applications, particularly for industries where reliability under extreme conditions is paramount. Our testing methodologies adhere to international standards such as ASTM E606 and ISO 12106, with customizations to address specific material and application requirements.

Elevated Temperature Fatigue Testing

Testing Methodology and Equipment

Our elevated temperature fatigue testing utilizes specialized environmental chambers capable of maintaining temperatures from ambient to 1200°C with precise control (±2°C). We utilize resistance heating furnaces and radiant heating systems to achieve various temperature ranges, ensuring accurate thermal profiles throughout the test specimen. For materials processed through our Powder Bed Fusion technology, such as Superalloy components, we conduct tests that replicate their intended operational thermal conditions.

Material-Specific High-Temperature Applications

High-temperature fatigue testing is particularly relevant for materials designed for demanding applications. We regularly test Titanium Alloy components intended for Aerospace and Aviation applications, where understanding the interaction between creep and fatigue is crucial. Similarly, materials that have undergone specific Heat Treatment processes require characterization under thermal conditions matching their service environment to validate performance.

Corrosive Environment Fatigue Testing

Environmental Simulation Capabilities

Our corrosion fatigue testing facilities incorporate environmental chambers that can simulate various corrosive media, including salt spray, acidic environments, and specific chemical solutions. We utilize advanced monitoring systems to control pH levels, solution concentration, and temperature throughout the testing duration. This capability is essential for components protected with specialized Surface Treatment technologies, where we need to validate coating integrity under cyclic loading conditions.

Industry-Specific Corrosion Testing Protocols

For Medical and Healthcare applications, we conduct fatigue testing in physiological solutions such as Ringer's solution at body temperature to simulate in-vivo conditions. In the Energy and Power sector, we test components in environments simulating geothermal, marine, or chemical processing conditions. Stainless Steel specimens often undergo testing in chloride-containing environments to evaluate their susceptibility to stress corrosion cracking.

Combined Environmental Testing

Simultaneous Multi-Stress Condition Testing

Our most advanced capability involves the simultaneous application of thermal and corrosive environments during fatigue testing. This approach provides the most accurate simulation of real-world operating conditions, particularly for components manufactured using Directed Energy Deposition that may experience complex thermal-mechanical-chemical interactions. We can replicate specific operational scenarios for Automotive components experiencing thermal cycling while exposed to road de-icing salts.

Material Performance Validation

For materials processed through Hot Isostatic Pressing (HIP), we conduct comparative testing to quantify the improvement in fatigue performance under aggressive environments. Similarly, we evaluate the effectiveness of various Thermal Barrier Coatings (TBC) under thermo-mechanical fatigue conditions, providing critical data for design optimization and life prediction.

Elevated-temperature or corrosive fatigue testing requires control of specimen temperature, atmosphere or fluid chemistry, exposure time, stress ratio, frequency, corrosion monitoring, and post-test inspection. A room-temperature air test cannot stand in for a hot or corrosive service condition. Surface condition and prior exposure should be recorded because they can change crack initiation.

Ask for temperature or solution verification, cycling method, interruption rules, fracture examination, and waste or safety controls. The RFQ should identify the service environment, allowable variation, target life, final-state condition, and whether the customer needs a fatigue curve, crack-growth observation, or a pass/fail screen.

Elevated-temperature or corrosive fatigue requires compatible fixtures, environmental control, specimen sealing or exposure, temperature verification, and a method that defines frequency and stress control. State whether the test is tension-compression, rotating-bending, or another mode, and whether corrosion or oxidation changes the failure mechanism. Separate screening data from a service-life qualification and preserve the environment history with each result.

Corrosive or elevated-temperature fatigue requires a method that defines specimen exposure, temperature verification, stress control, frequency, environment renewal, and failure criterion. State whether the result is screening, design data, or qualification evidence. A test in a controlled laboratory environment should not be presented as proof of service life in a different atmosphere or thermal cycle without a justified correlation.