Commercial, aluminum die-cast alloys are subject to long-term stresses leading to viscoelastic material responses resulting in inefficient engine operation and failure. Constant load creep tests were conducted on aluminum die-casting alloys: B-390, eutectic Al-Si and a 17% Si-Al alloys. Rupture occurred in the primary creep regime, with the eutectic alloy having the longest times to failure. Primary creep was modeled by with A, B, and n dependent on stress. Poor creep performance is linked to the brittle fracture of the primary silicon phase as well as other casting defects.
Creep Behavior of Al-Si Die-Cast Alloys
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division May 13, 2003; revised manuscript received May 17, 2004. Associate Editor: A. M. Rajendran.
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Jaglinski , T., and Lakes, R. (November 9, 2004). "Creep Behavior of Al-Si Die-Cast Alloys ." ASME. J. Eng. Mater. Technol. October 2004; 126(4): 378–383. https://doi.org/10.1115/1.1789953
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