کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11001653 | 1001561 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of in situ Al3Nb-NbB2-NbC/Al inoculant and its effect on microstructures and properties of weldable Al-Cu-Mn alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The in-situ Al3Nb-NbB2-NbC/Al inoculant (Al-5Nb-0.75B4C) ingots and ribbons were prepared with Al-Nb and B4C powers to refine the Al-Cu-Mn alloy. The Al3Nb-NbB2-NbC/Al inoculant ribbons showed excellent inoculant effect, which modified the dendrite crystals to equiaxed crystals and refined the grains from ~100â¯Âµm to ~30â¯Âµm. The transmission electron microscopy (TEM) images of the Al-Cu-Mn alloys reveal that the θⲠphases were refined from ~83â¯nm to ~40â¯nm and their number densities were also increased significantly. The selected area electron diffraction (SAED) patterns indicate that there are orientation relationships (ORs) between α-Al and Al3Nb, NbB2 and NbC, which suggest that these particles possess nucleation potency to α-Al. After inoculated by 1% Al3Nb-NbB2-NbC/Al ribbons, the ultimate tensile strength and elongation of the Al-Cu-Mn alloy were improved from 435â¯MPa and 8.4% to 514â¯MPa and 11.5%, respectively. The welding microstructure and property of the Al-Cu-Mn alloy inoculated by 1% Al3Nb-NbB2-NbC/Al inoculant were also improved significantly.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 738, 19 December 2018, Pages 273-282
Journal: Materials Science and Engineering: A - Volume 738, 19 December 2018, Pages 273-282
نویسندگان
Jinhua Ding, Chunxiang Cui, Yijiao Sun, Jiejie Shi, Sen Cui, Qing Ma,