EVOLUTION OF MICROSTRUCTURAL AND MICROHARDNESS PROPERTIES OF AZ31B MAGNESIUM ALLOY BY FSW-AN EXPERIMENTAL APPROACH

  • Unique Paper ID: 165346
  • Volume: 11
  • Issue: 1
  • PageNo: 627-631
  • Abstract:
  • The effect of friction stir welding (FSW), the microstructure, microhardness and mechanical properties of a magnesium alloy AZ31B has been going to analyse. A simple friction stir tool, a specially designed fixture and to perform single-pass friction stir processing experiments on Mg AZ31B alloy. The AZ31B Magnesium alloy, which is lightest structural material having good properties like density, high specific strength, nice recovery, zero pollutions & rich resource. They are widely used in aerospace automobile & Marine industries for the core applications in their fields. This study analyzes the micro hardness, microstructure changes by friction stir processing on the Mg AZ31B alloy at different speeds and different feed rates are used for this experiments. The effects of stirring parameters such as the translational feed, rotational speed, cooling conditions are studied. The resulting microstructure and microhardness from these processes hold a key to the mechanical properties of the alloy. This analysis would help to understand and evaluate the specific aspects of grain size and microhardness that influence the fatigue life of a component.

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