Abstract
With the development of new materials processing techniques such as severe plastic deformation (SPD) with the equal-channel angular (ECA) extrusion technique [1], bulk structural materials of very fine grain size (UFG: ultrafme grain size) and extraordinary strength are becoming a reality. Among the mechanical properties of interest, the fatigue strength is considered to be of special importance. It is therefore timely to consider critically to what extent a drastically reduced grain size, compared to conventional grain size, will be expected to affect the fatigue behavior. Because of the lack of detailed studies so far, such considerations must of necessity be based not only on the limited data on fatigue of SPD-material but also largely on some basic considerations and “extrapolations” from work on materials of conventional grain size.
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Mughrabi, H. (2000). On the Grain-Size Dependence of Metal Fatigue: Outlook on the Fatigue of Ultrafine-Grained Metals. In: Lowe, T.C., Valiev, R.Z. (eds) Investigations and Applications of Severe Plastic Deformation. NATO Science Series, vol 80. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4062-1_31
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DOI: https://doi.org/10.1007/978-94-011-4062-1_31
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