Effect of process features of pressure treatment on the microstructure and quality of parts of pipeline fittings from high-strength cast iron

Пономарев, А. С.; Sosenushkin, E. N.; Klimov, V. N.

doi:10.1007/s11041-012-9450-2

Cited by 12 publications

(3 citation statements)

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“…In the actual production of iron castings, the degree of superheating is about 147 K [25]: DT = T ctg -T cr = 147 K. Then T ctg = T cr + DT = 1420 + 147 = 1567 K. However, a large amount of superheating must be done to compensate for the inevitable heat losses that occur when the melt in the ladle is transferred to the die. Thus, it is necessary that T ctg > T L in order for the iron to remain fluid while it is being poured.…”

Section: Efficient Engineering Parameters and Their Calculationmentioning

confidence: 99%

Effect of Pressure and Temperature Factors on the Solidification of Cast Iron and Its Structure in Liquid Forging

Sosenushkin

Frantsuzova²,

Kozlova

2015

Met Sci Heat Treat

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This article examines the properties and microstructure of cast iron after fabrication of grinding balls by different kinds of casting and forging, with crystallization of the metal under pressure. A mathematical model of the process of solidification of a forging in a die is presented. Joint solution of two Fourier equations of heat conduction for the melt and for the solid skin is used to derive a kinetic equation of solidification and hence to determine the rate of solidification of the forging in the die. The effect of the pressure on the structure of the crystallizing metal and the quality of the forged grinding balls that are obtained is determined.Key words: structure of cast iron, crystallization under pressure, mathematical model, temperature fields, components of the time of solidification.

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Section: Efficient Engineering Parameters and Their Calculationmentioning

confidence: 99%

Effect of Pressure and Temperature Factors on the Solidification of Cast Iron and Its Structure in Liquid Forging

Sosenushkin

Frantsuzova²,

Kozlova

2015

Met Sci Heat Treat

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“…A large range consists of hollow parts of different shapes and sizes, manufactured using the operations of sheet metal forming [21][22][23]. As a rule, the requirements to accuracy and quality of such products dictate for the manufacturer to use more flexibility in the choice of input materials and, along with cheaper sheet metal, make use of steel billets [24,25].…”

Section: Introductionmentioning

confidence: 99%

The Parameters of the Stress State in the Operations of Plastic Deformation

Sosenushkin¹,

Kadymov²,

Yanovskaya³

et al. 2016

KEM

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“…An alternative for traditional methods of chemical-thermal treatments can be alloying a surface layer with wear-resistance on steel and carbide material tools by means of self-extending hightemperature synthesis reaction (SEHTS), based on the use of self-energy of chemical interaction of source reagents. The cutting practice shows us that the instrument treated in such a manner, with ion-plasma wear-resistant cover, meets the highest requirements as to its quality, resistance, and efficiency [8,9]. Due to the subsurface modified layer, a wearing-out mechanism changes, and the cutting power significantly decreases, which has a positive impact on the tool's resource.…”

Section: Introductionmentioning

confidence: 99%