کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
777164 1463844 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of short time post-weld heat treatment on the fatigue crack growth of 2205 duplex stainless steel welds
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
The effect of short time post-weld heat treatment on the fatigue crack growth of 2205 duplex stainless steel welds
چکیده انگلیسی

The influence of γ content and its morphology on the impact and fatigue crack growth behavior of 2205 duplex stainless steel (DSS) welds were studied in this work. Short time post-heating was able to effectively raise the γ content and the impact toughness of the weld. The variation in microstructures showed less influence on the fatigue crack growth rate (FCGR) of the steel plate and weld except in the low ΔK regime. In contrast, residual welding stresses played a more significant affection on the FCGR of the DSS weld than microstructural factors did. Plastic deformation induced martensitic transformation within a definitely thin layer was responsible for the difference in crack growth behavior between specimens in the low ΔK range. Coarse columnar structure was more likely to have tortuous crack path in comparison with the steel plate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 29, Issue 12, December 2007, Pages 2155–2162
نویسندگان
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