کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9804022 | 1516477 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of tungsten dissolution on the mechanical properties of Ti-W composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Blends of 90 wt.% Ti and 10 wt.% W powders were consolidated by powder metallurgy, using an initial W powder size that was very fine (0.7 and 2 μm) or very coarse (<250 μm). Dissolution of W powders in the Ti matrix during consolidation was almost complete for the former blends (thus forming Ti-10W “alloys”) but very limited for the latter blend (thus forming a Ti-10W “composite”). The Ti-10W alloys exhibit much higher yield and tensile strengths than the Ti-10W composite, indicating that tungsten strengthens titanium more efficiently as a solute atom (solid-solution strengthening) than as a second phase (composite strengthening by load transfer). The Ti-10W alloys also exhibit much higher ductility than the Ti-10W composite, whose brittle W particles exhibit fracture or pull-out from the matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 390, Issues 1â2, 22 March 2005, Pages 62-66
Journal: Journal of Alloys and Compounds - Volume 390, Issues 1â2, 22 March 2005, Pages 62-66
نویسندگان
Heeman Choe, Susan M. Abkowitz, Stanley Abkowitz, David C. Dunand,