Conclusions
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1.
A reduction in the test steels of martensite decomposition products formed by the twinning mechanism promotes an increase in fatigue resistance.
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2.
The carbon and alloying element content in steels with the use of normal hardening to martensite and tempering should be such that they provide more than 75% of lath martensite.
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Scientific Production Unit, Tractor Scientific-Research Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 2–3, April, 1987.
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Bulygin, Y.S. Effect of martensite type on the structural strength of tempered steel. Met Sci Heat Treat 29, 243–245 (1987). https://doi.org/10.1007/BF00769418
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DOI: https://doi.org/10.1007/BF00769418