کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7972727 | 1514621 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of solution treatment time on the microstructure and ductility of naturally-aged A383 alloy die castings
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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 effect of solution treatment time on the microstructure and ductility of naturally-aged A383 alloy die castings The effect of solution treatment time on the microstructure and ductility of naturally-aged A383 alloy die castings](/preview/png/7972727.png)
چکیده انگلیسی
A383 aluminum alloy high pressure die castings were solution treated at 490â¯Â°C for six duration ranging between 15 and 180â¯min, subsequently quenched in water and naturally aged for 4 days. The effects of solution treatment time on the evolution of microstructure and tensile properties were determined. As expected, Si particles became larger and rounder with increasing solution treatment time. In all cases, the size and aspect ratio of the Si particles followed the lognormal distribution. Moreover, the coarsening of Si particles during solution treatment was found to follow the Lifshitz -Slyozov-Wagner model. A new equation was developed for the evolution of the aspect ratio during solution treatment of Al-Si-Mg alloys. Analysis of tensile properties showed that elongation and quality index increased steadily with increasing Si particle size, a result that is in contrast with the widely accepted notion that large Si particles impairs the ductility of cast Al-Si-Mg alloys. The positive correlation between Si particle size and quality index was interpreted to be due to partial healing of oxide bifilms entrained in the castings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 722, 11 April 2018, Pages 1-7
Journal: Materials Science and Engineering: A - Volume 722, 11 April 2018, Pages 1-7
نویسندگان
G. Eisaabadi B., GY Yeom, Murat TiryakioÄlu, Nelson Netto, R. Beygi, M.Z. Mehrizi, SK Kim,