Abstract
In this study, an attempt to investigate the role of isothermal aging on the microstructure and dry sliding wear behavior of Co–28Cr–5Mo–0.3C alloy was made. Regarding the results, it is clear that isothermal aging at 850 °C for 8 and 16 h contributed to the formation of lamellar type carbides (γ-fcc + M23C6) at the grain boundary regions. Moreover, at higher aging times (24 h), the lamellar type carbides decreased whereas severe precipitation of carbides was found to occur on the stacking faults. Furthermore, according to X-ray diffraction results, 24 h isothermal aging of solution treated specimens did not lead to complete fcc → hcp transformation. The wear properties of as-cast and heat treated samples were determined at 0.5 ms−1 speed several under normal applied loads such as 50, 80, and 110 N. At the lowest load applied (50 N), isothermally aged specimens for 8 and 16 h have higher wear resistance probably due to more volume fraction of lamellar-type carbides when compared to as-cast for both 4 and 24 h aged specimens. But, at higher applied loads (80 and 110 N) due to the formation of adhesive oxide layer on the as-cast specimen surface, the wear rate of as-cast samples is lower compared with all heat treated specimens.
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References
Saldivar AJ, Lopez HF (2001) Scr Mater 45:427
Upadhyay D, Panchal MA, Dubey RS, Srivastava VK (2006) Mater Sci Eng A 432:1
Huang P, Lopez HF (1999) Mater Lett 39:249
Montero-Ocampo C, Talavera M, Lopez HF (1999) Metall Mater Trans A 30:611
Lashgari HR, Zangeneh Sh, Hasanabadi F, Saghafi M (2010) Mater Sci Eng A 527:4082
Zangeneh Sh, Lashgari HR, Saghafi M, Karshenas M (2010) Mater Sci Eng A 527:6494
Garcia A, Medrano A, Rodriguez A (1999) Metall Mater Trans 30:1177
Garza Z, Herrera-Trejo M, Castro M, Ramı´rez E, Me´ndez M, Me´ndez J (2001) J Mater Eng Perf 10:153
Escobedo J, Mendez J, Cortes D, Gomez J, Mendez M, Mancha H (1996) Mater Des 17:79
Ramiırez-Vidaurri LE, Castro-Roman M, Herrera-Trejo M, Garcia-Lopez CV, Almanza-Casas E (2009) J Mater Proc Technol 209:1681
Taylor RNJ, Waterhouse RB (1983) J Mater Sci 18:3265. doi:https://doi.org/10.1007/BF00544151
Giacchi JV, Morando CN, Fornaro O, Palacio HA (2011) Mater Charact 62:52
Lopez HF, Saldivar-Garcia AJ (2008) Metall Mater Trans A 39:8
ASM Handbook (1992) In: Friction, lubrication, and wear technology, vol. 18. ASM International, Hardcover
Ueda M, Uchino K, Kobayashi A (2002) Wear 253:107
Clayton P (1980) Wear 60:75
Bhushan B (ed) (2001) In: Modern tribology handbook, vol. 1. CRC press LLC, Boca Raton
Bhansali KJ, Miller AE (1982) Wear 75:241
Yu H, Ahmed R, Lovelock HV, Davies S (2009) J Tribo 131:11601
Clemow AJT, Daniell BL (1980) Wear 61:219
Haung P, Rodriguez AS, Lopez HF (1999) Mater Sci Tech 15:1324
Acknowledgement
H. R. Lashgari wishes to acknowledge the assistance of Mr. Saghafi for operating SEM in this project.
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Lashgari, H.R., Zangeneh, S. & Ketabchi, M. Isothermal aging effect on the microstructure and dry sliding wear behavior of Co–28Cr–5Mo–0.3C alloy. J Mater Sci 46, 7262–7274 (2011). https://doi.org/10.1007/s10853-011-5686-2
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DOI: https://doi.org/10.1007/s10853-011-5686-2