Tribological properties of Ni3Al produced by pressure-assisted volume combustion synthesis |
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| Affiliation: | 1. Jet-Hot LLC, 2611 LaVista Dr, Burlington, NC 27215, USA;2. NSF Engineering Research Center for Revolutionizing Metallic Biomaterials, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA;3. Materials Science and Engineering, University of Wisconsin, Madison, WI 53706, USA;1. Shanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China;1. Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, School of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243000, China;2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Wencui Road, 110016, China |
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| Abstract: | The production of Ni3Al was performed under an uniaxial pressure of 150 MPa at 1050 °C for 1 h. The formation temperature of Ni3Al was determined to be 655 °C. The presence of Ni3Al was confirmed by XRD analysis. SEM analysis revealed that the Ni3Al phase has very low porosity. The relative density and microhardness of test materials were 97.8% and about 359±31 HV1.0, respectively. The specific wear rate of Ni3Al was 0.029 mm3/N m for 2 N, 0.017 mm3/N m for 5 N and 0.011 mm3/N m for 10 N, respectively. The distribution of alloying elements was determined by energy-dispersive spectroscopy (EDS). |
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