کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1574106 | 1514699 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combining effects of TiB2 and La on the aging behavior of A356 alloy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Combining effects of TiB2 and La on the aging behavior of A356 alloy Combining effects of TiB2 and La on the aging behavior of A356 alloy](/preview/png/1574106.png)
چکیده انگلیسی
In the present work, the combining effects of TiB2 and La on the aging behavior of A356 alloy were investigated by comparing microstructures and age-hardening curves. The results demonstrated that, with the addition of TiB2, the density of precipitates upon aging is increased with a smaller size due to the increased dislocation density caused by the coefficient mismatch of thermal expansion between the matrix and reinforcements, therefore significantly increasing the aging hardness of the matrix. La helps to refine the SDAS of the α-Al grains and disperse the TiB2 particles and leads to an acceleration in the aging kinetics which shortens the peak-aged time by some 30 min based on the existence of TiB2, further improving the aging precipitation hardening. Further, it was also noted that the La alloyed composite achieved a superior tensile property due to the improved aging precipitation strengthening.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 644, 17 September 2015, Pages 425-430
Journal: Materials Science and Engineering: A - Volume 644, 17 September 2015, Pages 425-430
نویسندگان
Tongmin Wang, Yufei Zhao, Zongning Chen, Yuanping Zheng, Huijun Kang,