کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10615139 | 987222 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase transformations in Ti-35Nb-7Zr-5Ta-(0.06-0.68)O alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Aging at higher temperatures resulted in resolution of the Ï phase in 0.06 wt.% O. Lenticular α precipitation was observed at higher O content, the volume fraction of α increasing with increasing O at a constant aging temperature and with increasing aging temperature at a constant O content. The latter also resulted in coarsening of the α precipitates and an increase in their aspect ratio. Finally aging of these alloys resulted in the formation of precipitate free zones (PFZs) along prior β grain boundaries, the width of these zones increasing with an increasing aging temperature. These observations are consistent with the ability of O to suppress Ï phase formation through interruption of the ã111ã lattice displacement required for this phase's formation, while promoting α phase formation at higher O content, presumably through local ordering within the β phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 25, Issue 3, May 2005, Pages 389-397
Journal: Materials Science and Engineering: C - Volume 25, Issue 3, May 2005, Pages 389-397
نویسندگان
J.I. Qazi, B. Marquardt, L.F Allard, H.J. Rack,