Copper effect on the ultrasonic fatigue life of A356 aluminum alloy under variable humidity levels

Paper #:
  • 2018-01-1411

Published:
  • 2018-04-03
Abstract:
Ultrasonic fatigue tests (testing frequency around 20kHz) have been conducted on A356 aluminum alloys with different Cu contents and AS7GU aluminum alloy. Tests were performed in dry air and submerged in water. The effect of Cu percentage was investigated, it was concluded that under the same Cu percentage, the material strength may be the key factor influencing the environment humidity effect in ultrasonic fatigue testing.
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