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Title: Effects of ultrasonic impact treatment on fatigue life of pre-exfoliated AA-2024-T351
Author: Pilli, Srinivas
Awarding Body: Sheffield Hallam University
Current Institution: Sheffield Hallam University
Date of Award: 2008
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In this study investigations were made into the effects of Ultrasonic Impact Treatment (UlT) on pre-exfoliated AA 2024 T351. Electrochemical tests were conducted to determine any changes in electrochemical behaviour of the alloys due to UIT condition. Uniaxial monotonic, cyclic and fatigue crack propagation (FCG) tests were conducted on material in As-Received (AR) condition and UIT condition in air and in a corrosive environment by prexfoliating the test specimens at pre-defined set of time periods and temperature range (20°C). It was clear that the fatigue performance was severely reduced by the introduction of the corrosion environment for AR specimens.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available