M. I. Olenin, O. N. Romanov, S. V. Bushuev, A. Kashtanov, S. Y. Afanasiev, B. I. Berezhko, S. A. Shakhkyan, Zh. E. Apinov
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Evaluation of the influence of homogenization annealing on the critical brittle temperature of forged blanks from steel 15Kh2MFA-A
The effect of the homogenization annealing duration on the critical brittle temperature of 15Kh2MFA-A vessel reactor steel has been studied. The criterion for calculating the duration of the annealing is determined – this is the total duration of heating of the ingot and forging before the first and second removals. It is shown that in order to achieve Тк0 not less than minus 50°С, a total specific exposure at a temperature of 1220±20°С of not less than 2.5 min/mm of section is required.
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