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The effect of temperature gradients in thermo-mechanical fatigue testing

机译：温度梯度在热机械疲劳试验中的影响

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The focus of this paper is the characterization of the influence of the temperature rates on the TMF lives. Therefore static and the dynamic calibrations of the temperature measurement devices were compared by a custom-built calibration specimen, which included five internal mantle thermocouples. Additionally the temperatures were measured on the specimens' surface. The experimental setups used were compared by executing TMF pre-test with the identical single-crystalline specimen. Subsequently TMF tests on coated single-crystalline Nickel-based superalloy PWA 1484 were carried out with temperature rates of 10K/s and 20 K/s. Finally the deviations of the determined TMF lives were evaluated.
机译：本文的重点是表征温度率对TMF生命的影响。 因此，通过定制校准样本进行了静态和温度测量装置的动态校准，包括五个内部地幔热电偶。 另外，在样品表面上测量温度。 通过使用相同的单晶标本执行TMF预测试来比较使用的实验装置。 随后在涂覆的单晶镍基超合金PWA 1484上进行TMF试验，温度率为10k / s和20k / s。 最后评估了确定的TMF生命的偏差。

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