Effect of C Content on Microstructure and Mechanical Properties of Nb-V Added Microalloyed Steel Produced by Powder Metallurgy Method

Yıl 2016, Cilt: 5 Sayı: 9, 44 - 47, 26.12.2016

Mehmet Akif Erden

Öz

In this work, the effect of C content on the microstructures and tensile behaviors of Nb-V added microalloyed powder metallurgy (PM) steels were investigated. The samples pressed at 700 MPa and sintered at 1450°C temperature in the sintering argon atmosphere for 1 h were produced. Nb-V added PM microalloyed steels with different carbon ratio were analyzed in terms of tensile test. Results indicated that the images of microstructure that as the proportion of the C in the PM samples increases, the volume of the perlite gets increase gradually and 0.35 wt. % C added Nb-V PM steel showed the highest values in yield strength (YS) and ultimate tensile strength (UTS).

Anahtar Kelimeler

Powder metallurgy , powder metallurgy steels , Nb-V , Microstructure

Proje Numarası

KBÜ-BAP-15/2-KP-058

Kaynakça

• Erden, M.A., Gündüz, S., Karabulut, H., Türkmen, M., 2016. Effect of V Addition on the Microstructure and Mechanical Properties of Low Carbon Microalloyed Powder Metallurgy Steels. Meterials Testing, 58, 5, 433-437.
• Erden, M.A., Gündüz, S., Karabulut, H., Türkmen, M., 2014. Microstructural characterization and mechanical properties of microalloyed powder metallurgy steels. Materials Science and Engineering A, 616, 201-206.
• Erden, M.A., Gökçe, H. 2016. The Effect of Sintering Atmosphere on Mechanical Properties of Nb-V Bsaed Microalloy Steels Produced by Powder Metallurgy Method. SYLWAN, 160(8), 362-375.
• Gladman T. 1997. The physical metallurgy of microalloyed steels, 1st ed., The University Press, Cambridge.
• Gladman, T. and Woodhead, J. H. 1960. The accuracy of point counting in metallographic investigations, Journal of the Iron Steel, 194, 189.
• Misra R. D. K., Tenneti K. K., Weatherly G. C., Tither G. 2003. Microstructure and texture of hot rolled Cb-Ti and V-Cb microalloyed steels with differences in formability and toughness, Metall. Mater. Trans. A, 34A, 2341–2351.
• Rahimian M., Parvin N. and Ehsani N., 2011. The effect of production parameters on microstructure and wear resistance of powder metallurgy Al-Al2O3 composites, Materials and Design, 32, 1031-1038.
• Sage A. M., The Effect of Some Variations in Composition on the Properties of Vanadium Forging Steels, Conference Proceedings of Fundamentals of Microalloying Forging Steels, 8-10 July 1986, pp. 239-253, Colorado, USA.
• Schade C, Murphy T, Lawley A, Doherty R. 2012. Microstrucure and mechanical properties of microalloyed PM steels, Int J of Powder Metall. 48: 51-59.
• Schade, C., Murphy, T., Lawley A., Doherty R., 2012. Microstructure and mechanical properties of PM steels alloyed with silicon and vanadium”, International Journal of Powder Metallurgy, 48 (6): 41-48.
• Wang J., Wang Y. and Ding Y., 2008. Reaction synthesis of Fe-(Ti, V) C composites”, Journal of Materials Processing Technology, 197, 54-58.
• Xiang-done H., Xin-ping M, Sheng-xia L. 2013. Effect of annealing temperature on recrystallization behavior of cold rolled Ti-microalloyed steel, J. of Iron and Steel Res Int., 20 (9): 105-110.