کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
791299 901949 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel technique for reducing macrosegregation in heavy steel ingots
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
A novel technique for reducing macrosegregation in heavy steel ingots
چکیده انگلیسی

Solid steel balls were added to the melt during the pouring process. A reference 500 kg steel ingot with no addition of solid balls was poured to provide a realistic comparison with the typical macrosegregation found in conventional industry heavy ingots. The experiments show that by adding solid balls the degree of macrosegregation is reduced, the formation of A-type segregation is prevented, a generally refined microstructure is obtained and the mechanical properties are improved. Numerical simulation of the solidification process confirms that the addition of solid balls increases the cooling rate, imposing large temperature gradient which refine the microstructure and alleviate the extent of macrosegregation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 210, Issue 4, 1 March 2010, Pages 703–711
نویسندگان
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