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متالوژی::
بار حرارتی
Oxygen combines with the alu- minum to form a continuous layer of Al2O3 scales, replacing the cracked and spalled ones from the cyclical thermal loads.
elasticity then results in substantially higher stresses for the same thermal loading.
Under combined mechanical and thermal load conditions that mimic the strain- temperature behavior at critical locations in blades, the presence of an aluminide coating on SRR99 results in substantial life reduction at 0.7 percent mechanical strain (Bressers et al.
Wall temperatures determine the thermal loading of the composite materials.
Starting with operation at low values the thermal load is gradually intensified to a peak of 87 percent maximum load.
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