کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1585813 | 1514923 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The formation of Al3(ScxZryHf1−x−y)-dispersoids in aluminium alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The formation of Al3(ScxZryHf1−x−y)-dispersoids in aluminium alloys The formation of Al3(ScxZryHf1−x−y)-dispersoids in aluminium alloys](/preview/png/1585813.png)
چکیده انگلیسی
The nucleation and growth of dispersoids during precipitation annealing of Al–Hf–Sc–(Zr)-alloys have been studied by 3D atom probe and TEM. A high number density of Sc-rich clusters was observed in the early stages of precipitation, and these clusters subsequently transform to spherical Al3Sc-dispersoids displaying the L12-structure. Further annealing results in segregation of Zr, Hf and more Sc to the Al3Sc/α-Al matrix-interfaces, and upon completion of precipitation annealing Zr-, Hf-, and Sc-containing “shells” were observed around already existing Al3Sc-dispersoids. A previously developed non-isothermal theoretical approach to diffusion has been used in order to interpret these observations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 421, Issues 1–2, 15 April 2006, Pages 154–160
Journal: Materials Science and Engineering: A - Volume 421, Issues 1–2, 15 April 2006, Pages 154–160
نویسندگان
H. Hallem, W. Lefebvre, B. Forbord, F. Danoix, K. Marthinsen,