Effect of the rate of electrocontact heating on the structural state of alloy 36NKhTYuM8

1998 ◽  
Vol 40 (9) ◽  
pp. 363-367
Author(s):  
O. M. Khovova ◽  
O. M. Zhigalina ◽  
I. O. Dumanskii
Keyword(s):  
Structural State ◽  
Electrocontact Heating

Effect of High Strength Structural Steel Structural State on Fracture Resistance

Metallurgist ◽  
2021 ◽  
Author(s):  
V. N. Zikeev ◽  
O. N. Chevskaya ◽  
A. R. Mishet’yan ◽  
V. G. Filippov ◽  
A. B. Korostelev
Keyword(s):  
Structural Steel ◽  
Structural State ◽  
Fracture Resistance ◽  
High Strength

Cast steel with adjustable austenitic transformation during operation, obtained by electroslag remelting

2020 ◽  
Vol 2020 (01) ◽  
pp. 77-85
Author(s):  
O. M. Sydorchuk ◽  
◽  
A. A. Mamonova ◽  
Y. V. Lukianchuk ◽  
K. O. Gogaiev ◽  
...  
Keyword(s):  
Heat Resistance ◽  
Uniform Distribution ◽  
Structural State ◽  
Cast Steel ◽  
Hardened Steel ◽  
The Body ◽  
Cast State ◽  
Tempering Temperature ◽  
Austenitic Transformation ◽  
Base Steel

The ligature for finishing of base steel 3H3M3Ftype for obtaining steel 4H3N5M3Ftype with adjustable austenitic transformation is developed in the article. The phase-structural state of steel in the cast state is investigated. The uniform distribution of alloying components on the body of grains is shown. It was found that the investigated hardened steel is softening above the tempering temperature of 620 °C, because the heat resistance of steel decreases (below 40 HRC). It was developed a 3H3M3F base steel ligature for steel production with adjustable austenitic transformation of 4H3N5M3F brand. Ingots (ligature of the Fe―Ni―Mo―V―Mn system) weighing 25 kg were obtained. The ligature was obtained by means of an induction furnace in a casting mold. The temperature of the metal in the furnace before release was 1550 °C. The duration of refining did not exceed 20 minutes. The phase-structural state of cast steel is studied. The uniform distribution of alloying components on the body of grains is shown, as well as the absence of coarse carbide eutectic in metal. This allows to reduce energy-intensive technological operations (diffusion annealing, forging) for the die toolsmanufacture. The presence of martensitic structure in the steel in the cast state of the investigated ingot requires the main thermal operation — annealing. It is established that incomplete annealing at a temperature of 750 ± 20 °C under the condition of partial recrystallization of the investigated steel allows to improve the mechanical processing (cutting) for the production of the die tool. It was determined that the investigated hardened steel hardens above the tempering temperature of 620 °C, because the heat resistance of steel decreases (below 40 HRC). Thus, a die tool of the investigated steel for hot deformation, capable of operating up to the temperature of 620 °C. Keywords: steel, ligature, temperature, structure, hardness.

Influence of mesoporous or parasitic BiFeO 3 structural state on the magnetization reversal in multiferroic BiFeO 3/Ni 81Fe 19 polycrystalline bilayers

2018 ◽  
Vol 124 (23) ◽  
pp. 235309 ◽  
Author(s):  
W. Jahjah ◽  
J.-Ph. Jay ◽  
Y. Le Grand ◽  
A. Fessant ◽  
J. Richy ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Structural State ◽  
Multiferroic Bifeo

Reproducibility of the single-phase structural state of the multielement high-entropy Ti-V-Zr-Nb-Hf system and related superhard nitrides formed by the vacuum-arc method

2012 ◽  
Vol 38 (7) ◽  
pp. 616-619 ◽  
Author(s):  
O. V. Sobol’ ◽  
A. A. Andreev ◽  
V. F. Gorban’ ◽  
N. A. Krapivka ◽  
V. A. Stolbovoi ◽  
...  
Keyword(s):  
Structural State ◽  
Single Phase ◽  
Vacuum Arc ◽  
High Entropy

Influence of low-temperature thermocycling on anisotropy of the structural state of commercial purity Beryllium

1984 ◽  
Vol 19 (11) ◽  
pp. 1477-1482
Author(s):  
B. I. Verkin ◽  
F. F. Lavrentev ◽  
I. S. Braude ◽  
O. P. Salita
Keyword(s):  
Low Temperature ◽  
Structural State ◽  
Commercial Purity

Structural state of multilayers studied by X-ray absorption spectroscopy

1988 ◽  
Vol 145 ◽  
pp. 123-129 ◽  
Author(s):  
C. Brouder ◽  
G. Krill ◽  
W. Felsch ◽  
P. Guilmin ◽  
G. Marchal ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Structural State ◽  
X Ray ◽  
X Ray Absorption

Prediction of the structural state and properties of pressed aluminum semifinished products with the use of a QFORM CAD system

2009 ◽  
Vol 50 (3) ◽  
pp. 242-245 ◽  
Author(s):  
A. E. Gabidullin ◽  
A. V. Ovchinnikov ◽  
V. P. Alpatov ◽  
T. A. Chernoglazova
Keyword(s):  
Structural State ◽  
Cad System
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