The addition of magnesium to bronze ANKMts 6-6-1-2 reduces the tendency to grain growth. Magnesium has no effect on the kinetics of aging, but slightly increases the hardening during aging. The optimal aging conditions are 425° for 3h and 450° for 2h.
Raising the quenching temperature of bronze with magnesium to 950° leads to an increase of the strength during subsequent aging.
The addition of magnesium reduces the degree and rate of stress relaxation under static and cyclic loads. The relaxation resistance is highest after thermomechanical treatment for the alloy with 0.13% Mg.
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A. G. Rakhshtadt, Spring Steels and Alloys [in Russian], Metallurgiya, Moscow (1971), p. 496.
V. G. Grishchenko et al., "Effect of microalloying with magnesium on the properties of strain hardened spring bronzes," Metal. i Term. Obrabotka Metal., 11, 42–43 (1971).
A. G. Rakhshtadt et al., "Modification of beryllium bronzes with magnesium," Tsvetnye Metally, 6, 58–61 (1970).
N. E. Bauman Moscow Technical College. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 47–50, August, 1973.
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Pastukhova, Z.P., Dovbenko, A.V. & Babenko, N.P. Effect of magnesium on the structure and properties of Al−Ni−Si−Mn bronze. Met Sci Heat Treat 15, 684–686 (1973). https://doi.org/10.1007/BF00654766
- Cyclic Load
- Stress Relaxation
- Aging Condition
- Thermomechanical Treatment