کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
272747 505030 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of cooling rate on mechanical properties of aged ITER-grade CuCrZr
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Effect of cooling rate on mechanical properties of aged ITER-grade CuCrZr
چکیده انگلیسی

The effects of the cooling rate on the microstructure and the mechanical properties of aged CuCrZr alloys were examined. The CuCrZr alloys were solution annealed at 980 °C for 0.5 h, cooled down by four different cooling methods and then aged at 400–620 °C for 2 h. The strength showed the highest value at an aging temperature of 440 °C irrespective of the cooling rate and it was decreased gradually with an increase of the aging temperature up to 620 °C. The strength of the CuCrZr alloys was highly dependant on the distribution of the precipitates and the highest strength was obtained in the CuCrZr alloys with a number of Guinier–Preston zones. For the same aging temperature, the strength was increased with the cooling rate but the difference in the strength became smaller when the CuCrZr alloys were aged at above 580 °C. The yield strength of the CuCrZr alloys was higher than the minimum value (150 MPa at 250 °C) required for the design of the International Thermonuclear Experimental Reactor first wall up to an aging temperature of 600 °C when a gas cooling method after a solution annealing was performed with cooling rates of 89 and 207 °C/min.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 83, Issues 10–12, December 2008, Pages 1503–1507
نویسندگان
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