Article ID Journal Published Year Pages File Type
237147 Powder Technology 2012 5 Pages PDF
Abstract

This study investigates the mechanical and wear properties of Al92.5Fe2.5Cr2.5Ti2.5 alloys prepared via Magnetic Pulsed Compaction (MPC) starting from elemental powders. The potential of MPC-processed Al92.5Fe2.5Cr2.5Ti2.5 alloy for structural applications at both ambient and elevated temperatures has also been studied. The difficulty with which to form supersaturated Al-based solid solutions depends on alloying elements with Fe being the easiest element and Cr the most difficult one to form supersaturated Al-based solid solutions. After exposure to high temperature (up to 500 °C), the MPC-processed Al92.5Fe2.5Cr2.5Ti2.5 alloy exhibits an incremental hardness and reaches the maximum at 400 °C with minimum wear loss, due to strengthening of intermetallic precipitation.

Graphical abstractCross-sectional micrographs of wear-tested Al92.5Fe2.5Cr2.5Ti2.5 alloy surface with different sliding speeds and temperatures.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Mechanical and wear behavior of Al92.5Fe2.5Cr2.5Ti2.5 alloys are discussed. ► Alloys were prepared via Magnetic Pulsed Compaction (MPC) and gas atomization. ►A complete wear mechanism is suggested in light of our previous work. ► Optimum consolidation temperature range and sliding condition were studied. ► High MPC pressure was used for successful production with elevated properties.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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