Effect of Carbon on Microstructure and Wear Resistance of Fe-Mo-Si-C Steels Prepared by Powder Metallurgy
Abstract
Sintered Fe-Mo-Si-C steel was prepared from pre-alloyed Fe-Mo powder that was mixed with 4wt.% silicon carbide (SiC) and 0.3wt.% graphite. The powder mixture was compacted, sintered at 1250oC for 45 min and slowly cooled in a vacuum furnace. Microstructures were observed by OM and SEM. Hardness, tensile and wear properties were tested. From the experimental results, the sintered Fe-Mo-Si-C steel without graphite addition consisted of spherical particles in a matrix of ferrite, pearlite and bainite structures. With graphite addition, the feature of spherical particles was changed to vermicular shape, and the pearlite and bainite structures were increased. Tensile strength and hardness increased, but wear resistance decreased.Keywords : Fe-Mo-Si-C alloy, microstructure, sintering, mechanical propertyReferences
Binder, C., Hammes, G., Schroeder, R., Klein, A.N., Mello, J.D.B. de, Binder, R. (2010). Fine tuned steels point the way to a focused future. Metal Powder Report, 10, 29-37.
Chakthin, S., Poolthong, N., Thavarungkul and Tongsri, R. (2008). Effect of reaction between Fe and carbide particles on mechanical properties of Fe-base composite. Advanced Materials Research, 55-57, 357-360.
Chakthin, S., Poolthong, N., Thavarungkul, N. and Tongsri, R. (2008). Iron-carbide composites prepared by P/M, Proceedings of the Minerals, Metals and Materials society-3rd International Conference on Processing Materials for Properties 2008, PMP-III, 1, 571-578.
Coovattanachai, O., Mima, S., Yodkaew, T., Krataitong, R., Morkotjinda, M., Daraphan, A. (2006). Effect of admixed ceramic particles on properties of sintered 316L stainless steel. Proceedings of the Advances in Powder Metallurgy and Particulate Materials 2006, 7161-7171.
Kiatdherarat, W., Mungsantisuk, P., Mahathanabodee, S., Sirivedin, K., Krataitong, R., Morakotjinda, M. (2015). Effects of cooling rate and carbon content on mechanical property of sintered Fe-Cr-Mo alloys. Key Engineering Materials, 658, 69-75.
Kiatdherarat, W., Mungsantisuk, P., Tongsri, R., Mahathanabodee, S., Sirivedin, K., Krataitong, R. (2015). Microstructure and mechanical property of sintered Fe-Cr-Mo-Si-C steels. Proceedings of the Burapha University International Conference 2015, 454-462.
Öksüz, K.E., Gün, T. and Simsir, M. (2014). The microstructure and wear behaviour of sintered Astaloy 85Mo. WIT Transactions on The Built Environment, 137, 545-552.
Sheikhi, K., Ghambari, M., Farhangi, H. and Solirnanjad, N. (2012). Effect of sinter hardening on microstructure and mechanical properties of Astaloy 85 Mo. Iron and Steel Research International, 19, 43-46.
Srijampan, W., Wiengmoon, A., Morakotjinda, M., Krataitong, R., Yotkaew, T., Tosangthum, N. (2015). Microstructure and mechanical property of sintered Fe-Cr-Mo steels due to phase transformations with fast cooling rates. Materials and Design, 88, 693-701.
Srijampan, W., Morakotjinda, M., Krataitong, R., Yotkaew, T., Tosangthum, N., Wiengmoon, A. (2016). Sintered dual-phase steels produced from pre-alloyed Fe-Cr-Mo powder. Chiang Mai Journal of Science, 43, 358-364.
Tongsri, R. and Vetayanugul, B. (2010). Thermal analysis of Fe-Carbide and Fe-C mixtures. Journal of Metals, Materials and Minerals, 20(1), 45-49.
Chakthin, S., Poolthong, N., Thavarungkul and Tongsri, R. (2008). Effect of reaction between Fe and carbide particles on mechanical properties of Fe-base composite. Advanced Materials Research, 55-57, 357-360.
Chakthin, S., Poolthong, N., Thavarungkul, N. and Tongsri, R. (2008). Iron-carbide composites prepared by P/M, Proceedings of the Minerals, Metals and Materials society-3rd International Conference on Processing Materials for Properties 2008, PMP-III, 1, 571-578.
Coovattanachai, O., Mima, S., Yodkaew, T., Krataitong, R., Morkotjinda, M., Daraphan, A. (2006). Effect of admixed ceramic particles on properties of sintered 316L stainless steel. Proceedings of the Advances in Powder Metallurgy and Particulate Materials 2006, 7161-7171.
Kiatdherarat, W., Mungsantisuk, P., Mahathanabodee, S., Sirivedin, K., Krataitong, R., Morakotjinda, M. (2015). Effects of cooling rate and carbon content on mechanical property of sintered Fe-Cr-Mo alloys. Key Engineering Materials, 658, 69-75.
Kiatdherarat, W., Mungsantisuk, P., Tongsri, R., Mahathanabodee, S., Sirivedin, K., Krataitong, R. (2015). Microstructure and mechanical property of sintered Fe-Cr-Mo-Si-C steels. Proceedings of the Burapha University International Conference 2015, 454-462.
Öksüz, K.E., Gün, T. and Simsir, M. (2014). The microstructure and wear behaviour of sintered Astaloy 85Mo. WIT Transactions on The Built Environment, 137, 545-552.
Sheikhi, K., Ghambari, M., Farhangi, H. and Solirnanjad, N. (2012). Effect of sinter hardening on microstructure and mechanical properties of Astaloy 85 Mo. Iron and Steel Research International, 19, 43-46.
Srijampan, W., Wiengmoon, A., Morakotjinda, M., Krataitong, R., Yotkaew, T., Tosangthum, N. (2015). Microstructure and mechanical property of sintered Fe-Cr-Mo steels due to phase transformations with fast cooling rates. Materials and Design, 88, 693-701.
Srijampan, W., Morakotjinda, M., Krataitong, R., Yotkaew, T., Tosangthum, N., Wiengmoon, A. (2016). Sintered dual-phase steels produced from pre-alloyed Fe-Cr-Mo powder. Chiang Mai Journal of Science, 43, 358-364.
Tongsri, R. and Vetayanugul, B. (2010). Thermal analysis of Fe-Carbide and Fe-C mixtures. Journal of Metals, Materials and Minerals, 20(1), 45-49.
Downloads
Published
2017-09-15
Issue
Section
บทความวิจัยจากการประชุมวิชาการระดับชาติ"วิทยาศาสตร์วิจัย"ครั้งที่ 9
