Zobrazeno 1 - 10
of 10
pro vyhledávání: '"B. M. Bronfin"'
Publikováno v:
Metal Science and Heat Treatment. 35:187-191
1. Manganese has much greater effect than nickel on the hardenability of low-carbon steels. Partial substitution of nickel by manganese helps form a martensitic structure at minimal cooling rates. 2. The cooling rate from the austenite region has a s
Publikováno v:
Metal Science and Heat Treatment. 35:102-106
1. Rolling at temperatures above the recrystallization temperature with high levels of rolling makes it possible to obtain in low-carbon steels an improved submicron-grain structure with low dislocation density and a grain size of 0.8 μm, and at a t
Publikováno v:
Strength of Materials. 22:829-835
A model is suggested for strain hardening of ferrite-martensite steels taking account of the stereology of structural components and redistribution of strains between them during loading. Analytical expressions are obtained making it possible to calc
Publikováno v:
Soviet Materials Science. 27:513-515
High-strength low-carbon steels alloyed with manganese, nickel, molybdenum, and vanadium are characterized by a satisfactory combination of strength and cold resistance in large-section components, and also by satisfactory weldability ensured by a lo
Publikováno v:
Metal Science and Heat Treatment. 28:816-819
1. With a decrease in quenching rate from the intercritical temperature range a change from a ferritic-martensitic to a ferritic-bainitic structure occurs in 05G2S2 steel. At the same time there is an improvement in the combination of characteristics
Publikováno v:
Metal Science and Heat Treatment. 29:89-94
The authors assess the metallurgical effect of titanium and the temperature effect of various heat treatment regimes on the structural and mechanical properties of steel 20G1FL with a reduced vanadium and magnesium content. Hardening behavior and str
Publikováno v:
Metal Science and Heat Treatment. 23:434-437
1. After normalization of steel with excess titanium as compared with nitrogen, one observes three types of nitrides and carbonitrides: titanium nitrides that are present in the cast steel, high-carbon carbonitrides precipitated in the process of hol
Publikováno v:
Metal Science and Heat Treatment. 25:235-238
1. After quenching from the (α+γ) region, the structure of steel 12KhM consists of ferrite and martensite with a different relationship between the structural components. An increase in the quenching temperature from the two-phase region leads to a
Publikováno v:
Metal Science and Heat Treatment. 27:375-380
1. The formation of epitaxial ferrite on cooling from temperatures of the intercritical interval contributes to an increase in plasticity and a reduction in the strength properties of two-phase steels. 2. Together with the volume percentage of epitax
Publikováno v:
Metal Science and Heat Treatment. 21:104-109
1. The mechanism of grain boundary strengthening depends on several factors, above all the grain size and the condition of the grain boundaries. 2. In fine-grained steels the effect of the barrier mechanism of grain boundary strengthening is negligib