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

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• 作者：Rumman Md. Raihanuzzaman^a ; Joon Ho Kim^a ; Jin Kyu Lee^a ; Jae Sik Yoon^b ; Hyeon-Taek Son^c ; Soon-Jik Hong^a ; ^{hongsj@kongju.ac.kr}
• 关键词：Magnetic pulsed compaction ; Nanostructured materials ; Aluminum alloy ; Wear behavior ; Coefficient of friction
• 刊名：Powder Technology
• 出版年：2012
• 期刊代码：144_00325910
• 类别：et
• 出版时间：July, 2012
• 卷：225
• 期：Complete
• 页码：227-231
• 文件大小：4709 K

摘要

This study investigates the mechanical and wear properties of Al_92.5Fe_2.5Cr_2.5Ti_2.5 alloys prepared via Magnetic Pulsed Compaction (MPC) starting from elemental powders. The potential of MPC-processed Al_92.5Fe_2.5Cr_2.5Ti_2.5 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 掳C), the MPC-processed Al_92.5Fe_2.5Cr_2.5Ti_2.5 alloy exhibits an incremental hardness and reaches the maximum at 400 掳C with minimum wear loss, due to strengthening of intermetallic precipitation.