Thermal and Mechanical Fatigue in a Qe22 Magnesium Alloy Reinforced with Short Saffil Fibres

Thermal and Mechanical Fatigue in a Qe22 Magnesium Alloy Reinforced with Short Saffil Fibres

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Using non-destructive methods changes in the microstructure of Boxers QE22 metal matrix composites (MMC) due to thermal and mechanical cycling have been investigated.Thermal stresses induced in composites due to a considerable difference between thermal expansion coefficients of the matrix and ceramic reinforcement may create Single Inlet 3 way Water Valve new dislocations on cooling from elevated to ambient temperature.Thermal stresses can achieve the yield stress of the matrix and micro-glide of newly created dislocations as well as their annihilation can occur.Thermodynamic processes in the matrix influence these effects.