Fluctuations in the Process Plant as a Quality Assessment Criterion of Low-temperature Plasma Hardening Process

Мартынов, В. В.; Brzhozovsky, B. M.; Зинина, Е. П.; Yankin, I. N.; Susskiy, A.

doi:10.1016/j.proeng.2017.02.344

Cited by 5 publications

(3 citation statements)

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“…As is known, roughness refers to the microgeometry of a solid body and determines the most important operational propertiesof the surface [L. [16][17][18], primary, wear resistance from abrasion, strength, the density (tightness) of compounds, chemical resistance, and appearance. figure 5 shows the dependence of the parameter of the surface roughness of steel samples 40CrNi on the composition of the electrolyte.…”

Section: Results and Analysismentioning

confidence: 99%

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

2019

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This work presents the results of experimental studies on the application of surface plasma hardening to improve the tribological characteristics of steel marks of 40CrNi, 20Cr2Ni4A, and 34CrNi1Mn. According to the obtained results, it was established that, after plasma treatment, a modified layer with a thickness of 1-1.2 mm with high hardness and wear resistance is formed, consisting of a hardened layer of fine-grained martensite and, an intermediate layer of perlite and martensite. It was determined that, after treatment with a heating time of 3 min, the microhardness of steels 40CrNi and 20Cr2Ni4A doubles, and the steel 34CrNi1Mn increases 1.6 times, depending on the initial state, and the wear resistance of all steel samples increases, on average, 30 times. słowa kluczowe: utwardzanie plazmowe, mikrotwardość, odporność na zużycie, modyfikowana warstwa powierzchniowa, martenzyt, austenit szczątkowy, współczynnik tarcia, zużycie. StreszczenieW niniejszej pracy przedstawiono wyniki eksperymentalnych badań nad stosowaniem utwardzania plazmy powierzchniowej w celu poprawy charakterystyki tribologicznej próbek stalowych 40CrNi, 20Cr2Ni4A i 34CrNi1Mn. Zgodnie z uzyskanymi wynikami ustalono, że po obróbce plazmowej powstaje zmodyfikowana warstwa o grubości 1-1,2 mm o dużej twardości i odporności na ścieranie, składająca się z utwardzonej warstwy drobnoziarnistego martenzytu i warstwy pośredniej z perlitu i martenzytu. Stwierdzono, że po obróbce z czasem ogrzewania 3 min mikrotwardość stali 40CrNi i 20Cr2Ni4A podwaja się, a stal 34CrNi1Mn wzrasta 1,6 razy, w zależności od stanu początkowego, i odporność na zużycie wszystkich próbek stali wzrasta średnio 30 razy.

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Section: Results and Analysismentioning

confidence: 99%

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

2019

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“…The literature devoted to plasma hardening, for example, [1,[3][4][5] does not contain direct indications of the effect of the martensitic interval on the phase-structural composition of the hardened layer.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…In [5], the influence of the oscillation regime on the surface quality when using a low-temperature plasma is considered. The most favorable modes are shown and conclusions are drawn about the need for further monitoring of the process.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Increasing efficiency of plasma hardening by local cooling of surface by air with negative temperature

Bespalova

Лебедев

Frolenkova

et al. 2019

EEJET

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The results of modeling electrical processes in low-temperature plasma modification of metal surfaces

Мартынов

Syssky

2020

2020 4th Scientific School on Dynamics of Complex Networks and Their Application in Intellectual Robotics (DCNAIR)

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Fluctuations in the Process Plant as a Quality Assessment Criterion of Low-temperature Plasma Hardening Process

Cited by 5 publications

References 1 publication

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

Applying Surface Plasma Hardening for Improving The Tribological Characteristics of Steel Parts

Increasing efficiency of plasma hardening by local cooling of surface by air with negative temperature

The results of modeling electrical processes in low-temperature plasma modification of metal surfaces

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