Fatigue-crack growth in 2090 AlLi alloy

作者: P.S. Pao , L.A. Cooley , M.A. Imam , G.R. Yoder

DOI: 10.1016/0036-9748(89)90076-8

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摘要: Abstract The fatigue-crack growth kinetics of the 12.7 mm thick 2090-T8E41 alloy plate vary significantly with thickness location. apparent rates in midthickness location are substantially lower than those surface region at intermediate and high applied stress intensity ranges. crack related to extraordinarily tortuous fatigue profile which induces closure levels. Such a appears be primarily consequence alloy's intense crystallographic texture its great propensity for planar slip.

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