influence of defects on the very high cycle fatigue behaviour of forged aeronautic titanium alloy

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ID: 189465
2014
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Abstract
This paper is focused on fatigue failure of forged aeronautic titanium alloy Ti-6Al-4Mo under VHCF loading. Continuous fatigue tests were carried out in gigacycle fatigue regime (up to on 1010 cycles) on specimens machined from real aircraft compressor disk produced by forging. It has been shown, that crack initiation site shifts from surface to subsurface location with stress amplitude decreasing and fatigue life increasing. Microstructural inhomogeneities so that “hard” alpha particles, borders of large alpha lamella clusters and TiN particles are the cause of fatigue crack nucleation in forged Ti-6Al-4Mo titanium alloy under VHCF loading.
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alexander2014matecinfluence Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Nikitin Alexander;Palin-Luc Thierry;Shanyavskiy Andrey;Bathias Claude
Journal acta botânica brasílica
Year 2014
DOI
10.1051/matecconf/20141210004
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