Isothermal homogenization heat treatments for a GCr15 bearing steel cast billet were performed at temperatures of 1000–1250 °C and holding times of 30–180 min. The grain size of austenite was measured with a metallographic microscope through the linear intercept method. Experimental results show that the grain size of austenite increases with the increase in heating temperature and holding time. The relationship between grain size and homogenization cycles was established. The homogeneity of the cast billet has an obvious effect on the austenite grain size distributions. Small and large grains were observed in the high- and low-concentration regions, respectively. The log-normal function can describe the grain size distributions more accurately than other functions after heating at low temperatures for short times. However, the Weibull function fits the grain size data well when the heating temperatures and holding times are improved.
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R.J. Shipley: Failure analysis and prevention. In ASM Handbook, Vol. 11, 9th ed.; ASTM International, West Conshohocken, USA, 1990; p. 508.
V.M. Blinov, I.V. Doronin, A.E. Antoschenkov, and Yu.A. Lukina: Deformability of ShKh15 steel during cold plastic deformation. Russ. Metall. 2, 140 (2007).
V.I. Antipov, L.V. Vinogradov, E.M. Lazarev, Yu.E. Mukhina, and A.E. Antoshchenkov: Increasing the hardness of ShKh15 steel in its products. Russ. Metall. 4, 334 (2009).
R. Kiessling and S. Beckström: Electron probe x-ray microanalysis. Jernkontorets Ann. 145, 255 (1961).
T.I. Malinovskaya, A.H. Kurasov, G.V. Glaskova, and Ya.I. Spektor: Effect of homogenization of dendritic segregation of chromium and manganese in steel ShKh15. Met. Sci. Heat Treat. 17, 609 (1975).
O. Bode: Contribution to the understanding and susceptibility to macrosegregation in the rolling bearing steel 100Cr6 through the use of electromagnetic stirring. Ph.D. Thesis, Technical University of Clausthal, Germany, 1996.
O. Bode, K. Schwerdtfeger, H.G. Geck, and F. Höfer: Influence of casting parameters on void volume and centre segregation in continuously cast 100Cr6 blooms. Ironmaking Steelmaking 35, 137 (2008).
S.I. Gubenko and A.M. Galkin: Nature of red-shortness of steel. Met. Sci. Heat Treat. 26, 732 (1984).
P.M. Gerashchenko, V.T. Zhadan, I.L. Shturgunov, V.V. Zaikin, and V.M. Kapsheeva: Influence of heating schedules before rolling on properties and structure of ShKh15 steel. Steel USSR 17, 224 (1987).
N. Capatina, M. Teodorescu, E. Taru, and A. Udvuleanu: Research on the machinability of bearing steels. Bull. Univ. Galatina Part 5, 39 (1979).
W. Yang, A. Hu, and Z. Sun: Effect of austenite grain size on strain enhanced transformation in a low carbon steel. Acta Metall. Sin. 36 (10), 1055 (2000).
H. Beladi, G.L. Kelly, A. Shokouhi, and P.D. Hodgson: Effect of thermomechanical parameters on the critical strain for ultrafine ferrite formation through hot torsion testing. Mater. Sci. Eng., A 367, 152 (2004).
H. Beladi, G.L. Kelly, A. Shokouhi, and P.D. Hodgson: The evolution of ultrafine ferrite formation through dynamic strain-induced transformation. Mater. Sci. Eng., A 371, 343 (2004).
D. Han and X. Sun: Deformation induced ferrite transformation in low carbon steels. Curr. Opin. Solid State Mater. Sci. 9, 269 (2005).
Y. Yin, W. Yang, L. Li, and X. Wang: Microstructure control of hot rolled TRIP steel based on dynamic transformation of undercooled austenite. Acta Metall. Sin. 46 (2), 155 (2010).
C. Yue, L. Zhang, S. Liao, and H. Gao: Kinetic analysis of the austenite grain growth in GCr15 steel. J. Mater. Eng. Perform. 19 (1), 112 (2010).
M. Shirdel, H. Mirzadeh, and M.H. Parsa: Microstructural evolution during normal/abnormal grain growth in austenitic stainless steel. Metall. Mater. Trans. A 45 (11), 5185 (2014).
M. Shirdel, H. Mirzadeh, and M.H. Parsa: Abnormal grain growth in AISI 304L stainless steel. Mater. Charact. 97, 11 (2014).
S.S. Li, Y.H. Liu, Y.L. Song, L.N. Kong, T.J. Li, and R.H. Zhang: Austenitic grain growth behavior during austenization in an aluminum-alloyed 5% Cr–Mo–V steel. Steel Res. Int. 87, 1 (2016).
B.R. Patterson and Y. Liu: Relationship between grain boundary curvature and grain size. Metall. Trans. A 23, 2481 (1992).
P. Hellman and M. Hillert: Effect of second-phase particles on grain growth. Scand. J. Metall. 4, 211 (1975).
F.J. Humphreys and M. Hatherly: Recrystallization and Related Annealing Phenomena, 2nd ed. (Elsevier, Oxford, UK, 2004).
V.Yu. Novikov: On description of grain growth kinetics. Scr. Mater. 39 (7), 945 (1998).
F.J. Gil and J.A. Planell: Behaviour of normal grain growth kinetics in single phase titanium and titanium alloys. Mater. Sci. Eng., A 283, 17 (2000).
M. Hillert: On the theory of normal and abnormal grain growth. Acta Metall. 13, 227 (1965).
S.J. Lee and Y.K. Lee: Prediction of austenite grain growth during austenitization of low alloy steels. Mater. Des. 29, 1840 (2008).
J.B. Koo and D.Y. Yoon: Abnormal grain growth in bulk Cu—The dependence on initial grain size and annealing temperature. Metall. Mater. Trans. A 32, 1911 (2001).
J.S. Choi and D.Y. Yoon: The temperature dependence of abnormal grain growth and grain boundary faceting in 316L stainless steel. ISIJ Int. 41, 478 (2001).
J.C. Hamilton, D.J. Siegel, I. Daruka, and F. Léonard: Why do grain boundaries exhibit finite facet lengths. Phys. Rev. Lett. 90, 246102 (2003).
N.P. Louat: On the theory of normal grain growth. Acta Metall. 22, 721 (1974).
P. Feltham: Grain growth in metals. Acta Metall. 5, 97 (1957).
Y. He, H. Ding, L. Liu, and K. Shin: Computer simulation of 2D grain growth using a cellular automata model based on the lowest energy principle. Mater. Sci. Eng., A 429, 236 (2006).
D.J. Srolovitz, M.P. Anderson, P.S. Sahni, and G.S. Grest: Computer simulation of grain growth—II. Grain size distribution, topology, and local dynamics. Acta Metall. 32, 793 (1984).
D. Fan, C. Geng, and L.Q. Chen: Computer simulation of topological evolution in 2-D grain growth using a continuum diffuse-interface field model. Acta Mater. 45, 1115 (1997).
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Li, Z., Wen, Z., Su, F. et al. Austenite grain growth behavior of a GCr15 bearing steel cast billet in the homogenization heat treatment process. Journal of Materials Research 31, 2105–2113 (2016). https://doi.org/10.1557/jmr.2016.248