| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1573791 | Materials Science and Engineering: A | 2016 | 10 Pages |
Abstract
The results of microstructural analyses and rotating bending fatigue tests highlighted that (i) SDAS influences room temperature fatigue behaviour of the peak-aged A354 and C355 alloys, while its effect on the overaged alloys at high temperature is negligible; (ii) fatigue cracks nucleated mostly from large intermetallic compounds; (iii) at room temperature, C355 alloy is characterized by higher fatigue strength (151 and 135Â MPa for fine and coarse SDAS, respectively) in comparison to A354 alloy (133 and 113Â MPa); after overaging and testing at high temperature, the behaviour of the two alloys is comparable. A good correlation between ultimate tensile strength and fatigue resistance was found, independent of microstructure and aging condition.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Lorella Ceschini, Alessandro Morri, Stefania Toschi, Salem Seifeddine,