Wear behavior of Al–Fe–Cr–Ti alloys fabricated by magnetic pulsed compaction

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.

Cross-sectional micrographs of wear-tested Al92.5Fe2.5Cr2.5Ti2.5 alloy surface with different sliding speeds and temperatures.Figure optionsDownload 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.