Abstract
Specially designed facilities for tensile testing of ultra-high temperature alloys are presented. Ohmic heating is chosen for easy access to the sample, fast attainable heating and cooling rates, simplicity in design and operation. Strain is measured with a video extensometer by means of the software SuperCreep. The algorithm for the strain measurements is described. Stability and accuracy of the test system were determined by testing an oxide dispersion strengthened Pt alloy. Performance of the video extensometer was checked by thermal expansion tests on pure Pt. Tensile tests of the oxide dispersion strengthened alloy Pt-10 wt% Rh DPH at 1600°C have proven the reliability of the equipment.
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Völkl, R., Fischer, B. Mechanical testing of ultra-high temperature alloys. Experimental Mechanics 44, 121–127 (2004). https://doi.org/10.1007/BF02428171
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DOI: https://doi.org/10.1007/BF02428171