کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1601893 | 1005221 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling of titanium aluminides turbo-charger casting
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The castability of titanium aluminide (TiAl) turbo-charger was investigated with various casting parameters. The fluidity of TiAl alloys increased with mold preheating temperature and centrifugal force. The thermo-physical variables estimated by casting process were applied to the modeling of TiAl turbo-charger casting using the Magmasoft®. In the case of real casting process, there were many misruns and cold-shuts due to low fluidity of molten TiAl alloy. However, in the modeling, molten TiAl alloys never stop even though the turbo-charger has both the curvature and thin wall parts. Therefore, there were no major defects such as misruns and cold-shuts in the modeling process. The gap between casting and modeling remains in TiAl alloy turbo-charger casting since the modeling process cannot explain the microstructural evolution during solidification and metal-mold reaction between mold materials and TiAl alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 15, Issue 4, April 2007, Pages 468-474
Journal: Intermetallics - Volume 15, Issue 4, April 2007, Pages 468-474
نویسندگان
Si-Young Sung, Young-Jig Kim,