Elementum 3D's A7050-RAM2 aluminum alloy, developed specifically for additive manufacturing, recently completed room temperature fatigue testing, and is shown below together with 7050 wrought aluminum alloy MMPDS raw data. The testing on both materials was performed with a stress amplitude of R-ratio of -1 and used a testing run-out of 10,000,000 cycles for the A7050-RAM2 material. Wrought AA7050 is used for applications needing high toughness, strength, fatigue resistance, and stress corrosion cracking resistance and is used in many industries, especially in the aerospace sector.
Fatigue testing helps determine a material's ability to withstand cyclic loading conditions. Fatigue in metals and alloys can lead to the failure of a material at stresses well below the yield point of a material through repeated loading of the material in service. The fatigue life of a material is evaluated based on how many cycles it takes for a material to fail at a given stress cycle.
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