کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832474 908121 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of mould design on the solidification of heavy forging ingots of low alloy steels by numerical simulation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Influence of mould design on the solidification of heavy forging ingots of low alloy steels by numerical simulation
چکیده انگلیسی

Ingot casting of a 6-ton, heat-treatable Cr–Mo low alloy steel was simulated using finite element method in three dimensions. Effects of casting parameters including bottom pouring rate, mould slenderness ratio, mould slope, and height and shape of the hot top isolate on solidification behaviour and crack susceptibility during subsequent hot forging of the ingot were investigated. The simulation model was validated against experimental data of two different ingot mould designs. Influences of the casting parameters on the riser efficiency and possible crack formation in the intersection of hot top and ingot body during subsequent open-die forging of the cast steel ingots were discussed. Results showed that pouring the melt under a constant rate, reducing the mould slenderness ratio, and using a proper design for the hot top isolate would all improve the riser efficiency and thereby possibly reduce crack susceptibility during subsequent hot forging.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 31, Issue 3, March 2010, Pages 1096–1104
نویسندگان
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