Conclusions
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1.
Plastic deformation of unaged martensite with a total reduction of 10–60% increases the strength negligibly. After subsequent aging the increase in strength is also negligible.
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2.
Plastic deformation of aged martensite can result in softening, particularly at 7–15% strain. This phenomenon is accompanied by an increase of the lattice constant and resistivity of the martensite. Deformation of aged martensite increases the rate of hardening during repeated aging.
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3.
The highest strength can be attained by aging + strain + aging.
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Additional information
TsNIIChERMET. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 12–15, April, 1969.
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Kulinichev, G.P., Perkas, M.D. Properties of deformed maraging steels. Met Sci Heat Treat 11, 260–262 (1969). https://doi.org/10.1007/BF00653188
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DOI: https://doi.org/10.1007/BF00653188