کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1558971 1513825 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study and thermodynamic assessment of the Al–Fe rich side of the Al–Zn–Fe system at 300 and 550 ° C
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Experimental study and thermodynamic assessment of the Al–Fe rich side of the Al–Zn–Fe system at 300 and 550 ° C
چکیده انگلیسی

The phase relations of the Al–Zn–Fe system on the Al–Fe rich side at 300 and 550 °C were studied by means of the diffusion couple technique. The morphologies of Al96.2Zn3.8/Fe diffusion couples were observed by scanning electron microscopy (SEM) and the composition profiles were determined using energy dispersive spectroscopy (EDS). The intermetallics layer formed between the Al96.2Zn3.8 and Fe end-members were mainly Fe2Al5 phase. The diffusion path identified at 300 °C was (Al)→Fe4Al13→Fe2Al5→bcc(Fe)→(Fe), and that was (Al)→Fe4Al13→Fe2Al5→(Fe) at 550 °C. Based on the literature information and the current experimental results, the Al-Zn-Fe system was re-assessed thermodynamically with a CALPHAD approach. The calculated phase diagrams at 300, 450 and 550 °C agreed well with current experimental results as well as the data from the literature.


► The Al–Zn–Fe system was thermodynamically assessed.
► The phase equilibria on Al–Fe rich side was studied by a Al96.21Zn3.79/Fe diffusion couple.
► A set of self-consistent thermodynamic parameters was obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Calphad - Volume 37, June 2012, Pages 116–125
نویسندگان
, , , , , , , ,