کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1568830 | 999908 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of Portevin–Le Chatelier effect on rupture mode of alloy 718 specimens
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
A set of tensile tests has been carried out under air environment in the temperature range (450–700 °C) in order to characterize the interactions between oxidation assisted intergranular cracking and Portevin–Le Chatelier effect. It is shown that the occurrence of jerky flow stops the intergranular damaging mechanism. The construction of a temperature versus strain rate diagram showing dynamic strain aging, intergranular fracture and PLC instabilities locations is then proposed. The surprising relation between crack initiation disappearance and PLC instabilities of type C in the temperature range explored is discussed. Finally the assumption of the occurrence of such phenomenon at the tip of a propagating crack is addressed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 375, Issue 1, 30 March 2008, Pages 95–101
Journal: Journal of Nuclear Materials - Volume 375, Issue 1, 30 March 2008, Pages 95–101
نویسندگان
V. Garat, J.-M. Cloue, D. Poquillon, E. Andrieu,