ABSTRACT This work aims at investigating the influence of titanium addition on behavior of medium carbon steel. Three types of medium carbon steel with different titanium content and one reference steel titanium free were produced in 100 kg induction furnace. Titanium addition was increased up to 0.230%. The produced steels were forged at start temperature 1150°C. Forging process was finished at temperatures 900°C, 975°C, and 1050°C. Microstructure examination and hardness measurement were carried out for forged steels. Mechanical properties and impact measurements were carried out for quenched tempered steels. Ti addition was found to have significant influence on refinement of grains and increase of ferrite/pearlite ratio. It was also, observed that grain size decreases as finishing temperature of forging process decreases. Both Ti addition and lowering finishing forging temperature have positive effect on hardness. In addition, results indicated that addition of titanium has significant effect on the mechanical properties and toughness.
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H. El-Faramawy, S. Ghali and M. Eissa, "Effect of Titanium Addition on Behavior of Medium Carbon Steel," Journal of Minerals and Materials Characterization and Engineering, Vol. 11 No. 11, 2012, pp. 1108-1112. doi: 10.4236/jmmce.2012.1111118.
 N. Mebarki, D. Delagnes, P. Lameise, F. Delimas and C. Levaillant, “Relationship between Microstructure and Mechanical Properties of a 5% Cr Tempered Martensitic Tool Steel,” Materials Science and Engineering: A, Vol. 387-389, 2004, pp. 171-175.
 P. Ghosh, R. K. Ray, C. Ghosh and D. Bhattacharjee, “Comparative Study of Precipitation Behavior and Tex- ture Formation in Continuously Annealed Ti and Ti + Nb Added Interstitial-Free High-Strength Steels,” Scripta Materialia, Vol. 58, No. 11, 2008, pp. 939-942.
 S. G. Hong, H. J. Jun, K. B. Kang and C. G. Park, “Evo- lution of Precipitates in the Nb-Ti-V Microalloyed HSLA Steels during Reheating,” Scripta Materialia, Vol. 48, No. 8, 2003, pp. 1201-1206.
 P. Ghosh, C. Ghosh and R. K. Ray, “Thermodynamics of Precipitation and Textural Development in Batch-An- nealed Interstitial-Free High-Strength Steels,” Acta Materialia, Vol. 58, No. 11, 2010, pp. 3842-3850.
 J. K. Oduksote, T. K. Ajiboye and A. B. Rabiu, “Evalua- tion of Mechanical Properties of Medium Carbon Steel Quenched in Water and Oil,” Journal of Minerals and Materials Characterization and Engineering, Vol. 11, No. 9, 2012, pp. 859-862.
 T. Senthilkumar and T. K. Ajiboye, “Effect of Heat Treatment Processes on the Mechanical Properties of Medium Carbon Steel,” Journal of Minerals and Materials Characterization and Engineering, Vol. 11, No. 2, 2012, pp. 143-152.
 A. J. Craven, K. He, L. A. J. Garvie and T. N. Baker, “Complex Heterogeneous Precipitation in Titanium-Niobium Microalloyed Al-killed HSLA Steels: I. (Ti,Nb)(C,N) Particles,” Acta Materialia, Vol. 48, No. 15, 2000, pp. 3857-3868. doi:10.1016/S1359-6454(00)00194-4
 K. B. Kang, O. Kwon, W. B. Lee and C. G. Park, “Effect of Precipitation on the Recrystallization Behavior of a Nb Containing Steel,” Scripta Materialia, Vol. 36, No. 11, 1997, pp. 1303-1308. doi:10.1016/S1359-6462(96)00359-4
 S. G. Hong, K. B. Kang and C. G. Park, “Strain-Induced Precipitation of NbC in Nb and Nb-Ti Microalloyed HSLA Steels,” Scripta Materialia, Vol. 46, No. 2, 2002, pp. 163-168. doi:10.1016/S1359-6462(01)01214-3
 S. Matsuo, T. Ando and N. J. Grant, “Grain Refinement and Stabilization in Spray-Formed AISI 1020 Steel,” Materials Science and Engineering: A, Vol. 288, No. 1, 2000, pp. 34-41. doi:10.1016/S0921-5093(00)00881-9
 H. A. Drian and F. B. Pickering, “Effect of Ti Addition on Austenite Grain Growth Kinetics of Medium Carbon V-Nb Steels Containing 0.008% - 0.18% N,” Materials Science and Technology, Vol. 7, No. 2, 1991, pp. 176-182.
 F. Zia-Ebrahimi and G. Krauss, “The Evaluation of Tempered Martensite Embrittlement in 4130 Steel by Instrumented Charpy V-Notch testing,” Metallurgical and Materials Transactions A, Vol. 14A, No. 6, 1983, pp. 1109-1119.
 Aronsson, “In Steel Strengthening Mechanisms,” Climax Molybdenum Co., Michigan, 1969.