Effect of Volume-Surface Hardening on the Cyclic Strength of Fragments of Solebars of Freight Bogies

Nikulin, S.; Fedin, V. M.; Рожнов, А. Б.; Рогачев, С. О.; Armizonov, A. A.

doi:10.1007/s11041-016-9942-6

Cited by 7 publications

(4 citation statements)

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“…Analyzing the obtained results, it can be assumed that diamond smoothing significantly increases the value of residual stresses in the surface layers due to an increase in the dislocation density. These findings coincide with the results in numerous works [2,3,[6][7][8]13,16,21]. Since residual stresses significantly affect wear resistance, a reserve is created after combined processing to increase wear resistance.…”

Section: Resultssupporting

confidence: 91%

“…Residual stresses determine the quality and operational characteristics of hydropower plants [1][2][3][4][5][6][7][8]. The level of residual stresses is in many cases an important parameter that determines the quality of these mechanisms.…”

Section: Introductionmentioning

confidence: 99%

“…Compressive residual stresses formed on the surfaces of parts by various technological methods prevent the initiation and propagation of fatigue microcracks, increasing their performance. Therefore, for hydropower plant parts operating under sliding friction conditions, especially in cases of fatigue and abrasive wear during operation, it is important to create a surface layer with compressive residual stresses [4,[6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Combined Processing on Residual Stresses in the Surface Layer of Power Plant Parts

2022

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The purpose of this research was to analyze the change in residual stresses in the surface layer of steel samples taking into account the technological heredity effect on the value and sign of residual stresses. An installation of combined processing was developed. Combined processing consists of sequentially performing electromechanical processing and diamond smoothing. All areas of the samples were studied—after machining (i.e., in the initial state), after electromechanical processing, and after diamond smoothing. The research shows that the sign and value of residual stresses are significantly affected by the combined processing modes. The main parameters of the surface layer are formed at the final stage of the combined processing–diamond smoothing. This paper gives recommendations on the use of combined processing for power plant parts.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effect of Combined Processing on Residual Stresses in the Surface Layer of Power Plant Parts

2022

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“…4, в, г представлены аналогичные резуль-таты для фрагмента из стали 20ГЛ после объемно-по-верхностной закалки [19,20]. Результаты расчета по-верхностных напряжений приведены в таблице.…”

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