caa a22 4500 467981507 CHVBK 20180323112520.0 cr unu---uuuuu 170328e19900701xx s 000 0 eng 10.1007/BF00700330 doi (NATIONALLICENCE)springer-10.1007/BF00700330 Structure and properties of carbon-containing spring steels after high-speed hardening and tempering [Elektronische Daten] [A. Rakhshtadt, I. Dumanskii, O. Tikhomirova] Conclusions: 1. After high-speed hardening of spring steels, the martensite is characterized by smaller size of crystals, predominantly of twinned type, high level of distortions, higher content of carbon but with its greater concentrational nonuniformity than after ordinary hardening with furnace heating. 2. A decisive influence on the properties of spring steels, in particular on the resistance to small plastic deformations (elastic limit σ0.005), is exerted by residual austenite if contained in their structure, therefore after subzero treatment of hardened steel σ0.005 greatly increases. 3. After high-speed hardening and subsequent high-speed tempering the maxima of the elastic and fatigue limits are attained with equal tempering time, viz., 3 sec, because of the decisive influence of the development of processes of microplastic deformations on these properties. To attain maximal relaxation resistance, greater stability of the structure and correspondingly longer high-speed tempering is required. Plenum Publishing Corporation, 1991 Rakhshtadt A. aut Dumanskii I. aut Tikhomirova O. aut Metal Science and Heat Treatment Kluwer Academic Publishers-Plenum Publishers 32/7(1990-07-01), 541-550 0026-0673 32:7<541 1990 32 11041 https://doi.org/10.1007/BF00700330 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00700330 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rakhshtadt A. aut NATIONALLICENCE 700 1- Dumanskii I. aut NATIONALLICENCE 700 1- Tikhomirova O. aut NATIONALLICENCE 773 0- Metal Science and Heat Treatment Kluwer Academic Publishers-Plenum Publishers 32/7(1990-07-01), 541-550 0026-0673 32:7<541 1990 32 11041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer