Break-in effect roller residual stresses and fatigue resistance of specimens of steel 40KHN
Year: 2013
Type: article
Abstract: Residual stress and fatigue specimens with a diameter of 45 mm steel 40KhN after running roller investigated. Revealed the thickness layer with compressive residual stress is 1 mm, the axial residual stress is 1.8 times higher than the county and to the surface of the slow-down stress by 20 %. Fatigue tests of notched specimens radius 3 mm after DFND roller have shown that the fatigue limit is increased in the case when the depth of cut is three times the thickness of a layer of compressive residual stress, and the quantitative relationship between the residual stress and endurance limit is well reflected using the criterion of average integral residual stresses
Institution: Samara State Technical University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W3030675271