Hardening in steels with a controllable austenitic γ → α transformation intended for pressing tools
Tóm tắt
The hardening of 4Kh2N5M2F2 steel is studied during plastic deformation at temperatures of 400–900°C. The strength of this steel is found to increase significantly after this treatment at temperatures below the recrystallization temperature. The vanadium carbonitrides forming in the steel at elevated temperatures decrease the grain size, decrease the sensitivity to overheating, and increase the impact toughness.
Tài liệu tham khảo
L. A. Poznyak, Tool Steels (Naukova Dumka, Kiev, 1996) [in Russian].
Ts. V. Rashev, High-Nitrogen Steels (Bolgar, Sofia, 1995).
A. D. Ozerskii and A. A. Kruglyakov, Die Steels with a Controllable Austenitic Transformation during Operation (Mashinostroenie, Leningrad, 1988) [in Russian].