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Low Cycle Fatigue of A356-T6 Cast Aluminum Alloy Wheels
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Abstract
Axial strain-controlled low cycle fatigue behavior was obtained from smooth specimens machined from spokes of A356-T6 cast aluminum alloy wheels. Two different foundries cast the wheels. Three wheels were used from one production run at one foundry and two wheels were used from two different production runs at the other foundry. Specimens from the three wheels of the same production run had essentially the same monotonic tensile properties and low cycle fatigue resistance. Specimens from the two wheels of the different production runs had different monotonic tensile properties and different low cycle fatigue resistance. All these A356-T6 wheel specimens cyclic strain harden with hysteresis loops typically offset to the compression side by five percent or less. The usual log-log linear model for low cycle fatigue adequately described the low cycle fatigue behavior. The low cycle fatigue resistance of these specimens from commercial mass production wheels fell within the scatter band of the SAEFDE committee's round-robin A356-T6 cast aluminum alloy program involving materials W, X, Y, and Z.
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Citation
Stephens, R., Mahoney, B., and Fossman, R., "Low Cycle Fatigue of A356-T6 Cast Aluminum Alloy Wheels," SAE Technical Paper 881707, 1988, https://doi.org/10.4271/881707.Also In
Fatigue and Fracture Toughness of A356-T6 Cast Aluminum Alloy
Number: SP-0760; Published: 1988-09-01
Number: SP-0760; Published: 1988-09-01
References
- Stephens R.I. Berns H.D. Chernenkoff R.A. Indig R.L Koh S.K. Lingenfelser D.J. Mitchell M.R. Testin R.A. Wigant C.C. “Low Cycle Fatigue of A356-T6 Cast Aluminum Alloy: A Round Robin Program”
- Mahoney B.J. Stephens R.I. “Fatigue and Fracture Toughness of Water-Chilled A356-T6 Cast Aluminum Alloy”
- “Tension Testing of Metallic Materials” 1985 Annual Book of ASTM Standards. 03.01
- “Constant-Amplitude Low-Cycle Fatigue Testing” 1984 Annual Book, of ASTM Standards 03.01
- “Verification of Specimen Alignment Under Tensile Loading” 1984 Annual Book, of ASTM Standards 03.01