کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7983018 | 1514767 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of Cu addition and solution heat treatment on the microstructure, hardness and tensile properties of Al-15%Mg2Si-0.15%Li composite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
This study has been carried out to investigate the effect of Cu addition (0.1-3Â wt%) on the microstructure, hardness and tensile properties of Al-15%Mg2Si-0.15%Li in-situ metal matrix composite before and after solutionizing heat treatment. It was found that the presence of Cu at higher concentrations (>1Â wt%) results in the formation of hard Cu-rich intermetallics segregated in cell boundaries which intensifies ultimate tensile strength (UTS) values, but reduces elongation percentage (El%). Further results revealed that solution heat treatment partially dissolves different types of intermetallics which leads to proper distribution of such hard particles and ductility enhancement. The study of the fracture surfaces of the heat treated specimens via scanning electron microscopy (SEM) revealed fine dimples which are the main characteristic of ductile fracture mode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 576, 1 August 2013, Pages 36-44
Journal: Materials Science and Engineering: A - Volume 576, 1 August 2013, Pages 36-44
نویسندگان
M. Emamy, A.R. Emami, K. Tavighi,