Zobrazeno 1 - 10
of 11
pro vyhledávání: '"V. A. Olovyanishnikov"'
Publikováno v:
Geological Society, London, Memoirs. 30:5-17
Neoproterozoic, slope-to-basin, lithostratigraphic successions are discontinuously exposed within the Timan Range, in NW Russia, NE of a faulted basinal margin that marks the outer edge of a former, fluvial to shallow-marine, pericratonic domain. The
Publikováno v:
Geological Society, London, Memoirs. 30:169-190
The Neoproterozoic depositional histories of the Timanian and Baltoscandian, orthogonal margins of Baltica show several important differences but also some similarities. The Timanian margin comprises mainly low-grade, terrigenous sedimentary successi
Publikováno v:
Geological Society, London, Memoirs. 30:59-68
Throughout most of the exposed Timanide Orogen, the grade of regional metamorphism does not exceed greenschist facies. Only on the Kanin Peninsula and in the northernmost Timan and in a few of the drillcores that sample basement beneath the Pechora B
Publikováno v:
Metal Science and Heat Treatment. 33:280-285
1. The cooling capacity of UZSP-1 polymeric quenching medium is determined by the molecular mass (MM) of the copolymer. 2. With concentrations of more than 1.5% for the UZSP-1 solutions, their cooling capacity is virtually constant for a constant MM
Publikováno v:
Metal Science and Heat Treatment. 19:257-261
1. Additional alloying of the case on steels 25KhGT and 25KhGM with nitrogen increases the hardenability of the case only with low carbon concentrations—up to 0.65% C for steel 25KhGT and up to 0.5% C for steel 25KhGM. At higher carbon concentratio
Publikováno v:
Metal Science and Heat Treatment. 26:775-780
1 The chief cause of structures of nonmartensitic type forming in the surface layers of case-hardened components is the impaired hardenability of the surface zones of the case because of the depletion of carbon and alloying elements in the austenite
Publikováno v:
Metal Science and Heat Treatment. 31:608-612
Publikováno v:
Metal Science and Heat Treatment. 23:149-177
1. The critical case hardening rate in relation to chemicothermal treatment and type of steel may vary over a wide range from 2–330 deg/sec. 2. By comparing the data obtained with critical hardening rates for different steels it becomes possible to
Publikováno v:
Metal Science and Heat Treatment. 17:653-656
1. C−C−T diagrams were plotted for carbonitrided steels 25KhGT and 25KhGM by using interrupted quenching of end-quench samples. This method makes it possible to determine the kinetics of decomposition of supercooled austenite during cooling speci
Publikováno v:
Metal Science and Heat Treatment. 29:919-925
The effect of residual austenite on the mechanical properties of carburized steels was investigated by controlling residual austenite content during the specimen preparation stage and then conducting metallographic, layer-by-layer chemical and phase