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5.285  Articles
1 of 529 pages  |  10  records  |  more records»
For low-carbon steel the analysis of separate influence the hardening of solid solution and size of grain ferriet is carried out on a conduct at static and cyclic loadening. Possibility of development of processes of dynamic deformation ageing is consider... see more

The ferrite grain size of a 22MnVNb6 microalloyed steel can be estimated by developing a relationship between ferrite grain size, austenitising temperature and cooling rate from austenitising time, temperature. An extended Hall-Petch relationship was used... see more

Cu substituted Ni in Ni0.5-xCuxZn0.5Fe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) samples and Cu substituted Zn in Ni0.5Zn0.5-xCuxFe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) is synthesized using the sol-gel auto-combustion process. Recently, we have carried out their... see more

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It is known that the most effective way to improve mechanical properties of steels is by microstructural refinement. Iron and graphite powders mixture with hypoeutectoid composition were mechanically alloyed (MAed) and subsequently hot pressed (HPed) to p... see more

A description of the improved mechanical properties obtained in ultra-fine-grained steels up to now will be presented in this paper, and some potential applications of these new generation steels will be described. In addition, the principle and implement... see more

Four high-strength low-alloy (HSLA) steels with varying chemical compositions were forgedin two different temperature ranges followed by cooling in various media. Microstructures andmechanical properties of the steels were evaluated. The microstructures o... see more

The connection between structural zones of steel castings and their dendrite and grain structure is studied. It was demonstrated that the direction of dendrites, being the result of crystallization, determines the direction of grain boundaries formation i... see more

The paper contains theoretical and experimental studies of structural changes during hot deformation of the metal-bound process of controlled rolling. The effect of preheating temperature and the degree of deformation on the austenite grain size was studd... see more

1 of 529 pages  |  10  records  |  more records»