کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7210407 1469209 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphology Development and Kinetics of Plate or Rod Shaped Precipitates in Aluminum Alloys
ترجمه فارسی عنوان
توسعه مورفولوژی و سینتیک رسوبات پلات یا رس در آلیاژهای آلومینیوم
کلمات کلیدی
آلیاژ آلومینیوم، سالخورده، رسوب می کند تکامل مورفولوژی، مدل،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک مواد
چکیده انگلیسی
Microstructure quantitatively analysis is significant for building the relationship between microstructure and properties, especially the ageing precipitation kinetics in aluminum alloys. In the present paper, a core parameter (aspect ratio) was introduced to describe the morphology change of precipitation. Aspect ratios of T1-plate precipitates in Al-Cu-Li-Zr alloys, S-plate precipitates in Al-Cu-Mg alloys and β-rod precipitates in Al-Mg-Si alloys were quantitatively analyzed. Results indicate that aspect ratios of precipitates increase at the early stage of ageing, then reach the peak and finally decrease slowly. The soft-impingement theory and HHC theory were introduced to model the ageing kinetics. Thermodynamics and kinetics parameters of different precipitates were also calculated in the model. Simulated results of different precipitates agree well with the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 46, Issue 4, April 2017, Pages 876-881
نویسندگان
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