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Publikováno v:
Metallophysics & Advanced Technologies / Metallofizika i Novejsie Tehnologii; Aug2024, Vol. 46 Issue 8, p825-831, 7p
Autor:
Shcheglov V. M., Tarasevich M. I., Kondratyuk S.Ye., Veis Valentyn I., Parkhomchuk Zhanna V., TokarevaO.O.
Publikováno v:
Металознавство та обробка металів, Vol 26, Iss 2, Pp 21-28 (2020)
In connection with the need to reduce the negative impact of the main defects of the forging ingots, the changes in their thermal state due to endogenous vibrational processing of the melt during crystallization are studied. Vibration processing of a
Externí odkaz:
https://doaj.org/article/2db6d49dc4ad47849bb5cad858214bf0
Publikováno v:
Металознавство та обробка металів, Vol 26, Iss 1, Pp 12-18 (2020)
On the example of R6M5L steel, the possibilities of hardening heat treatment (hardening, normalization) and annealing of an instrument made by the technology of chill casting using casting heat are considered. For this purpose, tool-cutting steel P6M
Externí odkaz:
https://doaj.org/article/b2b874ec81894e75ae0902bc6f8d2c4a
Autor:
Kotrechko Oleksiy O., Veis Valentyn I.
Publikováno v:
Металознавство та обробка металів, Vol 25, Iss 2, Pp 62-67 (2020)
A retrospective review of the development of a protective military helmet (helmet) and its use in the armed forces of various countries from 1915 to the present has been carried out. The main structural changes and materials of protective helmets of
Externí odkaz:
https://doaj.org/article/921f149e445148d395f1172cc66d4819
Publikováno v:
Металознавство та обробка металів, Vol 25, Iss 4, Pp 13-20 (2019)
A simple configuration cast tool made by the technology of chill casting with intensive cooling during crystallization from R6M5L steel is characterized by a fine-grained structure, increased alloying of the solid solution and a hardness of 62-63 HRC
Externí odkaz:
https://doaj.org/article/4c51fa3367314fd1834834188f6e450c
Publikováno v:
Металознавство та обробка металів, Vol 25, Iss 3, Pp 30-39 (2019)
The influence of the melt overheating temperature over the equilibrium liquidus and the cooling rate of it during crystallization, the effect of the temperature of the isothermal processing of the melt in the pre-crystallization period and in the tem
Externí odkaz:
https://doaj.org/article/89586d7c6cd54b9b8a9d6222a37005b8
Publikováno v:
Металознавство та обробка металів, Vol 25, Iss 2, Pp 32-43 (2019)
The effect of the overheating temperature of steel melts above equilibrium liquidus (20…170 °C) and cooling rate at crystallization (5…650 °C/c) on characteristics of cast structure and mechanical properties of structural steels 25Л, 25ХГС
Externí odkaz:
https://doaj.org/article/93b87bb3da05436c9217fc4db6c687c6
Publikováno v:
Металознавство та обробка металів, Vol 24, Iss 4, Pp 9-18 (2018)
The processes of formation of nuclei and structure formation of steel are considered depending on the thermokinetic parameters of melt processing at different overheatings over the liquidus, isothermal processing during the pre-crystallization period
Externí odkaz:
https://doaj.org/article/8f09a4a2ab1d4c828d8f269bafd02d7a
Publikováno v:
Металознавство та обробка металів, Vol 24, Iss 3, Pp 41-47 (2018)
The effect of endogenous vibration treatment on kinetic parameters and characteristics of structure of a solidifying melt was studied on 16,3 t ingot of steel grade Х18Н10Т. Significant improvement in the quality of the ingot, homogeneity and di
Externí odkaz:
https://doaj.org/article/3bd4de234c60418abea3025ee78d61ff