caa a22 4500 467982724 CHVBK 20180323112523.0 cr unu---uuuuu 170328e19900501xx s 000 0 eng 10.1007/BF00700034 doi (NATIONALLICENCE)springer-10.1007/BF00700034 Mechanical properties of steels after vacuum and gas carburizing [Elektronische Daten] [A. Goncharov, R. Uvarova] Conclusions: 1. After heating to 1100°C and subsequent phase recrystallization to cycles making it possible to obtain an approximately 2 mm case depth in vacuum carburizing the mechanical properties (σt, σy, Ψ, δ) of the investigated steel and also the impact strengtha 1 do not drop with the exception ofa 1, of 20Kh steel, which decreases by 6.7% after heating at 1100°C for 2h. 2. The static bend strength for the steels after vacuum carburizing at 1050°C, hardening with reheating, and low temperature tempering is higher and the impact strength after vacuum carburizing at 1050 and 1100-1250°C not lower than after gas carburizing. 3. The fatigue resistance of the gear teeth after gas and vacuum (1050°C) carburizing is at the same level and the character of fracture of the teeth in fatigue tests is similar. Plenum Publishing Corporation, 1990 Goncharov A. aut Uvarova R. aut Metal Science and Heat Treatment Kluwer Academic Publishers-Plenum Publishers 32/5(1990-05-01), 321-325 0026-0673 32:5<321 1990 32 11041 https://doi.org/10.1007/BF00700034 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00700034 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goncharov A. aut NATIONALLICENCE 700 1- Uvarova R. aut NATIONALLICENCE 773 0- Metal Science and Heat Treatment Kluwer Academic Publishers-Plenum Publishers 32/5(1990-05-01), 321-325 0026-0673 32:5<321 1990 32 11041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer