Journal
INTERNATIONAL JOURNAL OF FATIGUE
Volume 116, Issue -, Pages 513-522Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2018.07.016
Keywords
AlSi10Mg; Fatigue property; Heat treatments; Fatigue fractography; Microstructural transformation
Funding
- National Natural Science Foundation of China [61475056]
Ask authors/readers for more resources
The fatigue property of selective laser melting AlSi10Mg samples with different heat treatments was investigated. The samples were tested in the state of as-built condition, stress relief treatment, solution treatment and solution + artificial aging treatment. It is found that the as-built sample displays the highest fatigue property, and the solution treatment samples exhibit the lowest fatigue property. Heat treatment reduces the fatigue property. The fatigue cracks originate from the surface or subsurface of all the samples, surface or subsurface pores have quite important effect on fatigue property. It is found that the fatigue property is closely related to the yield strength other than ultimate tensile strength or elongation. The change in fatigue property and static mechanical properties is mainly due to the microstructural transformation. Heat treatment changes the size and morphology of Si, which leads to a decrease in fatigue property.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available