|
|||||
|
|
Wear behaviour of an FeAl intermetallic alloy containing carbon and titanium |
|
| Affiliation: | 1. Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Azadi Ave., Tehran, Iran;2. Institute of Condensed Matter Physics (ICMP), EPFL, CH-1015 Lausanne, Switzerland;3. McGill University, Department of Materials Engineering, Montreal, QC H3A 2B2, Canada;4. Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, ROC;1. Brown University, School of Engineering, 184 Hope Street, Providence, RI 02912, USA;2. Darmstadt University of Technology, Materials Science Department, Division of Physical Metallurgy, Petersen-Strasse 23, 64287 Darmstadt, Germany;3. Chemnitzer Werkstoff- und Oberflächentechnik GmbH, D-09119 Chemnitz, Germany;4. Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM-WK), Engelbert-Arnold-Strasse 4, 76131 Karlsruhe, Germany;1. College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China;2. School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China;3. School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China |
| Abstract: | FeAl based alloys with carbon and titanium additions were prepared using arc induction melting and their effect on wear behaviour was investigated using ball-on-disk technique. The experimental results showed that carbon addition to FeAl alloys results in formation of perovskite-type Fe3AlC0.5 carbide phase and graphite. Addition of Ti promotes the formation of TiC and Fe3AlC0.5 and prevents the formation of graphite in the alloy. Hardness and wear resistance of FeAl based alloys increase with increase in the volume fraction of carbides. The FeAl alloys containing Ti exhibited low wear rate and coefficient of friction. Examination of wear tracks revealed micro ploughing at a lower load of 5N. Thin surface flakes with traces of their detachment were observed at a higher load of 10N. It was also observed that presence of graphite in localized regions reduce the wear resistance of the alloy. The results are correlated with observed microstructure and hardness. |
| Keywords: | A Intermetallics F Electron microscopy scanning F Electron microscopy transmission G Wear–resistant |
| 本文献已被 ScienceDirect 等数据库收录！ | |