Conclusions
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1.
With heating of annealed high-speed steel containing different amounts of tungsten the austenite grain size depends on the development of recrystallization caused by diffusional spontaneous work hardening of austenite resulting from the solution of carbides.
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2.
Raising the tungsten concentration of high-speed steels leads to an increase in the quantity and a change in the composition of the carbide phase and consequently to an increase of the static distortion of the austenite lattice during heating, an increase of the initial recrystallization temperature, and broadening of the recrystallization range.
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Literature cited
A. N. Popandopulo, "Recrystallization of austenite during heating of annealed high-speed steel," Izv. Vyssh. Uchebn. Zayed., Chern. Metal., No. 7, 126 (1970).
A. N. Popandopulo, "Kinetics and activation energy of austenite grain growth in high-speed steels", Metalloved. Term. Obrab. Med., No. 7, 71 (1974).
E. A. Smol'nikov, "How to calculate heating time during quenching", Metalloved. Term. Obrab. Met., No. 12, 53 (1970).
S. S. Gorelik, Recrystallization of Metals and Alloys [in Russian], Metallurgiya, Moscow (1967), p. 154.
V. I. Arkharov "Modern concepts of the diffusion of substances in the solid state", in: Symposium on Metallurgy and Metal Science on the 100th Anniversary of D. K. Chernov's Discovery of Polymorphism in Iron [in Russian], Nauka, Moscow (1971), p. 43.
Additional information
Tomsk Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov. No. 11, pp. 40–42, November, 1977.
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Erofeev, N.A., Rakov, M.V. Effect of tungsten on austenite grain growth in high-speed steel. Met Sci Heat Treat 19, 960–962 (1977). https://doi.org/10.1007/BF00670166
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DOI: https://doi.org/10.1007/BF00670166