Preparation and Performance of Sintered Fe-2Cu-2Mo-0.8C Materials Containing Different Forms of Molybdenum Powder
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School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
2
Research Centre for Powder Metallurgy Engineering and Technology of Anhui Province, Hefei 230009, China
*
Authors to whom correspondence should be addressed.
Materials 2019, 12(3), 417; https://doi.org/10.3390/ma12030417
Received: 18 December 2018
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Revised: 24 January 2019
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Accepted: 25 January 2019
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Published: 30 January 2019
Fe-2Cu-2Mo-0.8C powder mixtures were prepared by mixing Fe, Cu and C elemental powders with different forms of Mo-containing powder (pure Mo powder, prealloyed Mo-Fe powder and mechanically alloyed Mo-Fe powder, respectively). The powder mixtures were warm pressed under different pressures and temperatures. Properties of the green compacts and the sintered parts were tested to investigate the effects of the different ways of introducing molybdenum. The test results show that a green density of 7.32 g/cm3 was obtained for Fe-2Cu-2Mo-0.8C powder mixtures containing mechanically alloyed Mo-Fe powders, under a warm compaction pressure of 800 MPa and warm pressing temperature of 120 °C, respectively. The sintered Fe-2Cu-2Mo-0.8C specimens added with mechanically alloyed Mo-Fe powders had a density of 7.31 g/cm3, a hardness of 95 HRB and a tensile strength of 618 MPa, respectively. Compared with the sintered samples, added Mo in the forms of pure Mo and prealloyed Mo-Fe powder, the sintered parts added with mechanically alloyed Mo-Fe powders had more uniform microstructure, better mechanical and wear-resistant properties.
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Keywords:
ferrous powder metallurgy; Mo-containing powder; mechanically alloying; warm compaction; wear-resistance property
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MDPI and ACS Style
Chen, W.; Cheng, J.; Chen, P.; Zhang, J.; Wei, B. Preparation and Performance of Sintered Fe-2Cu-2Mo-0.8C Materials Containing Different Forms of Molybdenum Powder. Materials 2019, 12, 417. https://doi.org/10.3390/ma12030417
AMA Style
Chen W, Cheng J, Chen P, Zhang J, Wei B. Preparation and Performance of Sintered Fe-2Cu-2Mo-0.8C Materials Containing Different Forms of Molybdenum Powder. Materials. 2019; 12(3):417. https://doi.org/10.3390/ma12030417
Chicago/Turabian StyleChen, Wenchao, Jigui Cheng, Pengqi Chen, Jianhua Zhang, and Bangzheng Wei. 2019. "Preparation and Performance of Sintered Fe-2Cu-2Mo-0.8C Materials Containing Different Forms of Molybdenum Powder" Materials 12, no. 3: 417. https://doi.org/10.3390/ma12030417
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