کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10421102 905591 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fatigue and damage tolerance behaviour of corroded 2024 T351 aircraft aluminum alloy
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Fatigue and damage tolerance behaviour of corroded 2024 T351 aircraft aluminum alloy
چکیده انگلیسی
The fatigue and damage tolerance behaviour of pre-corroded 2024 T351 aluminum alloy specimens has been investigated and compared to the behaviour of the uncorroded material. The experimental investigation was performed on specimens pre-corroded in exfoliation corrosion environment and included the derivation of S-N and fatigue crack growth curves as well as measurements of fracture toughness. The fatigue crack growth tests were performed for different stress ratios R. To obtain reference material behaviour all mechanical tests were repeated under the same conditions for uncorroded specimens. For the corroded material an appreciable decrease in fatigue resistance and damage tolerance was obtained. The results of the experimental investigation were discussed under the viewpoint of corrosion and corrosion-induced hydrogen embrittlement of the 2024 aluminum alloy. The need to account for the influence of pre-existing corrosion on the material's properties in fatigue and damage tolerance analyses of components involving corroded areas was demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theoretical and Applied Fracture Mechanics - Volume 43, Issue 1, March 2005, Pages 121-132
نویسندگان
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