This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Effect of Humidity on the Very High Cycle Fatigue Behavior of a Cast Aluminum Alloy

Journal Article
2016-01-0371
ISSN: 1946-3979, e-ISSN: 1946-3987
Published April 05, 2016 by SAE International in United States
Effect of Humidity on the Very High Cycle Fatigue Behavior of a Cast Aluminum Alloy
Sector:
Citation: Li, W., Engler-Pinto, C., Cui, H., Wen, W. et al., "Effect of Humidity on the Very High Cycle Fatigue Behavior of a Cast Aluminum Alloy," SAE Int. J. Mater. Manf. 9(3):578-584, 2016, https://doi.org/10.4271/2016-01-0371.
Language: English

Abstract:

In this paper, fatigue tests on a cast aluminum alloy (AS7GU-T64) were performed under different frequencies and humidity levels. Tests conducted under conventional frequency in laboratory air have been compared to tests conducted under ultrasonic frequency in dry air, saturated humidity and in distilled water. It was observed that the highest and lowest fatigue lives correspond to ultrasonic fatigue tests in dry air and in distilled water, respectively. Unlike specimens tested at conventional frequency, all of the specimens tested at ultrasonic frequency presented a large amount of slip facets on the fatigue crack propagation fracture surface.