Review and Prospects for Current Studies on Very High Cycle Fatigue of Metallic Materials for Machine Structural Use

Abstract

In recent years, mechanical structures such as railway wheels, rails, offshore structures, bridges, engine components, load bearing parts of automobiles, etc. have to endure for a long term up to 10 8-10 10 loading cycles in order to save resources and to reduce the cost together with the environmental load to the globe. Thus, the fatigue behavior of structural materials in the very high cycle regime of 10 8-10 10 cycles has become an important subject of the research. In this paper, a review of the current studies in this area performed by many researchers is described in order to provide a certain milestone in the history of the research on fatigue behavior of the metallic materials in the very high cycle regime.

Effects of loading condition on very-high-cycle fatigue behaviour and dominant variable analysis

“…Recent studies [10,11] have confirmed the existence of fine grains in FGA. Surface defects may become non-propagating cracks [12], and sometimes grain boundary could also become a crack origin for high carbon chromium steel under low tempering temperature [5,13].…”

Fatigue crack propagation properties of Ti–6Al–4V in vacuum environments

“…Additionally, structural refinements of microstructures during the formations of the fine concave-convex feature were pointed out [13,14]. In this study, the following mechanism of the formation of granular region as shown in Fig.…”

Investigation of mechanical properties of Armco-iron during fatigue test

“…The characteristic features of the response of the material to giga cyclic fatigue test mode are the initiation of subsurface fatigue cracks and splitting (dual or duplex) of the Weller curve (Naimark et al 2014;Sakai 2009;Wang et al 1999). The analysis of published studies suggests that the physical mechanisms underlying these effects are not understood yet.…”