Conclusions
-
1.
After low-temperature tempering of high-alloy chromium steels Young's modulus begins to increase and then remains almost constant up to tempering temperatures of 525–550°C. The higher the chromium content of the steel, the smaller the initial increase and the longer the horizontal section of the curve.
-
2.
On the hardness curves one observes a small peak at 150°C and then a drop of the hardness. At 450–500°C one observes another peak, which is the result of processes in the carbide phase.
-
3.
After tempering at 525–550°C the hardness decreases and Young's modulus increases. Up to 700°C the increase of Young's modulus for steel 4Kh13 averages 6%, and 12% for steel 9Kh18.
-
4.
The rapid increase of Young's modulus after tempering at 525°C and the simultaneous decrease of the hardness confirm the data in [14] indicating that the decisive factor in the retention of the high hardness of alloy steels up to high temperatures is the inhibition of the decomposition of the γ-solid solution and the increased temperature of relaxation processes that induce a reduction of lattice distortion.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
Literature cited
B. A. Apaev, Fiz. Metal. i Metalloved.,9, No. 3 (1960).
S. S. D'yachenko, I. V. Vasis, and N. A. Kharchenko, Fiz. Metal. i Metalloved.,9, No. 3 (1960).
V. N. Gridnev and Yu. N. Petrov, in: Problems of Physics of Metals and Metal Science [in Russian], Izd. AN UkrSSR, Kiev, No. 18 (1964).
J. Bowers and B. Met, AIM, J. Iron Steel Inst., No. 7 (1956).
M. Ron, H. Shechter, A. Hirsch, and S. Niedewiedz, Physics Letters,20, No. 5 (1966).
A. A. Bryukhanov, Ukrainsk. Fiz. Zh.,12, No. 8 (1967);11, No. 3 (1966).
A. I. Medved', Ukrainsk. Fiz. Zh.,12, No. 3 (1967).
A. A. Bryukhanov, V. V. Berezyuk, and A. E. Bryukhanov, Izv. Vuzov, Fizika, No. 5 (1966).
M. V. Yakutovich, Zh. Tekh. Fiz.,1, No. 2, 3 (1931).
A. A. Bryukhanov, Ukrainsk. Fiz. Zh.,10, No. 1 (1965).
N. N. Sirota, in: Transactions of the Steel Institute, Theory and Practice of Metallurgy [in Russian], Vol. 14 (1939).
L. L. Lysak and A. G. Drachinskaya, in: Problems of Physics of Metals and Metal Science [in Russian], Izd. AN UkrSSR, Kiev, No. 18 (1964).
J. McGrath and R. Rawlings, Acta Met.,12, No. 8 (1964).
G. V. Kurdyumov and M. D. Perkas, in: Transactions of the Central Scientific Research Institute of Ferrous Metallurgy, Problems of Metal Science and Physics of Metals [in Russian], Metallurgizdat, Moscow (1951).
M. D. Perkas, in: Problems of Metal Science and Physics of Metals [in Russian], Metallurgizdat, Moscow (1952).
G. V. Kurdyumov, in: Problems of Metal Science and Physics of Metals [in Russian], Metallurgizdat, Moscow (1952).
B. A. Apaev, Fiz. Metal. i Metalloved.,6, No. 3 (1958).
V. G. Permyakov and M. V. Belous, Fiz. Metal. i Metalloved.,4, No. 4 (1957).
J. Pomey, Compt. Rend.,238 (1954).
Z. K. Kas'ko, Metal. i Term. Obrabotka Metal., No. 11 (1956).
Additional information
Odessa State University, Odessa Pedagogical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 35–38, September, 1969.
Rights and permissions
About this article
Cite this article
Medved', A.I., Bryukhanov, A.E. The variation of Young's modulus and the hardness with tempering of some quenched chromium steels. Met Sci Heat Treat 11, 706–708 (1969). https://doi.org/10.1007/BF00653164
Issue Date:
DOI: https://doi.org/10.1007/BF00653164