Influence of Surface Ultrafine Grain Structure on Cavitation Erosion Damage Resistance

Kyryliv, Yaroslav; Kyryliv, V. І.; Sas, N. B.

doi:10.1007/978-3-030-17759-1_7

Cited by 3 publications

(3 citation statements)

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“…In particular, when the NCS and UFGS are formed on the surface, its chemical composition can be changed [1] and it protects the matrix material from hydrogen saturation [2], corrosion [3], wear [4], and contact fatigue [5]. One of the methods for the UFGS formation is vibration-centrifugal hardening (VCH) [6][7][8]. It is shown [6][7][8] that VCH due to the significant weight of the strengthening tool forms a UFGS of high microhardness and considerable (up to 7 mm) depth.…”

Section: Introductionmentioning

confidence: 99%

“…One of the methods for the UFGS formation is vibration-centrifugal hardening (VCH) [6][7][8]. It is shown [6][7][8] that VCH due to the significant weight of the strengthening tool forms a UFGS of high microhardness and considerable (up to 7 mm) depth.…”

Section: Introductionmentioning

confidence: 99%

“…In the developed VCH method, the processing regimes can be used to control the parameters of the hardened layer, in particular, the tool weight over a wide range (from 3.5 to 7.5 kg) with a constant diameter of the balls. Such conditions change the depth and microhardness of the surface layer due to changes in contact loads in the treatment zone [6,7].…”

Section: Introductionmentioning

confidence: 99%

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Residual Stresses Formed by Vibration‐Centrifugal Hardening

Kyryliv

Sas

et al. 2020

Advances in Materials Science and Engineering

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The residual stresses of the first kind, which are formed by vibration-centrifugal hardening, are calculated. These are shown to increase in the hardened layer with increasing processing time and the weight of the hardening tool. The residual compressive stresses in the hardened layer after vibration-centrifugal hardening for optimal parameters reach maximum values: circular stresses up to σcirmax = 1600 MPa and radial stresses up to σr = 290 MPa. Their correlation with surface microhardness is shown.

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