Abstract:To determine the effect of a coating on fatigue strength, three point bending fatigue tests of coated and un-coated specimens of AM50 and AZ91D magnesium high pressure die castings were made and S-N curves determined. Environments adopted were air, tap water and natural seawater. A difference in corrosion fatigue performance has been found, between AZ91D and AM50 and for both alloys performance in air was superior to both water environments. AZ91D has better corrosion fatigue resistance in tap water than in se… Show more
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