Effect of mean stress in very high cycle fretting fatigue of a bearing steel
Source abstract
Abstract
Abstract Very high cycle fretting fatigue tests of high carbon chromium GCr15 steel were carried out using an ultrasonic fatigue system to investigate the fatigue strength and the mechanism of its wear and fracture in the damaged area. Fretting reduced the fatigue strength in contrast to the case of plain fatigue, which could escalate even further with the existence of mean stress. Some models were proposed based on the morphologies characterized by a scanning electron microscope: (i) four specific regions on the fracture surface were defined according to the evolution of cracks; (ii) formation of fretting fatigue cracks was analyzed; and (iii) how fretting and mean stress affected the crack propagation after the formation of cracks was analyzed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical stress and fatigue analysis · Metal Alloys Wear and Properties · Electrical Contact Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
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