Test Methods for Measuring High Temperature Tensile Properties of Subscale Specimen Geometries for Additively Manufactured Metallic Materials
23AERP08_09
08/01/2023
- Content
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An overview of the state-of-the-art for subscale high temperature tensile testing of metallic materials.
Air Force Research Laboratory, Wright-Patterson Air Force Base, OH
With the rise of additive manufacturing (AM) for metallic materials, concerted efforts are underway to integrate the technology into present and future aerospace systems to enhance performance capability, reduce cost, and minimize production lead-times. One advantage of AM components is the generation of complex and thin-walled geometries for location-specific performance otherwise unachievable through conventional manufacturing means. Yet, as a new manufacturing process, AM leads to unique microstructures that must be properly assessed for material properties and performance.
At times, regions of interest at the component level will require subscale specimen excision and evaluation for proper characterization as witness coupons may not fully capture locat ion-specific performance. Other industries, e.g., nuclear power, have adopted non-standardized testing with the goal of test specimen miniaturization so to characterize material response using minimal material volume without the sacrifice of accurately capturing bulk material properties. Material scarcity, costs, and handling hazards all motivate the need for developing such a testing capability.
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- Citation
- "Test Methods for Measuring High Temperature Tensile Properties of Subscale Specimen Geometries for Additively Manufactured Metallic Materials," Mobility Engineering, August 1, 2023.