کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7992368 | 1516147 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structures and tensile properties of Sc-containing 1445 Al-Li alloy sheet
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structures and tensile properties of Sc-containing 1445 Al-Li alloy sheet Structures and tensile properties of Sc-containing 1445 Al-Li alloy sheet](/preview/png/7992368.png)
چکیده انگلیسی
The strength and precipitates after T8-aging (second-step aging at 170â¯Â°C following first-step aging at 150â¯Â°C for 4â¯h after 6% predeformation) and grain structures of 1445 Al-Li alloy (Al-1.7Li-1.5Cu-0.9Mg-0.1Mn-0.1Zr-0.1Ag-0.1Ti-0.08Sc-0.07Ni) cold-rolled sheet were investigated. The main precipitates are δⲠ(Al3Li) and Sâ² (Al2CuMg). It is critical that nano-sized Al3(Sc,Zr) dispersoids are formed, and the Cu-enriched and Sc-containing W phases (AlCuSc) are not found. Due to the strong pinning effect of the nano-sized Al3(Sc,Zr) dispersoids on sub-grain boundaries and dislocations, the solutionized 1445 Al-Li alloy sheet displays non-recrystallization characteristics, which corresponds to a high volume fraction of deformation textures of Copper {112}<111>, Brass {011}<211> and S {123}<634>. This non-recrystallization feature makes the 1445 Al-Li alloy suitable for thin sheet. In addition, due to the addition of minor Ni, Al9FeNi particles instead of Al7Cu2Fe particles are formed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 747, 30 May 2018, Pages 471-483
Journal: Journal of Alloys and Compounds - Volume 747, 30 May 2018, Pages 471-483
نویسندگان
Zhuo-wei Peng, Jin-feng Li, Feng-jian Sang, Yong-lai Chen, Xu-hu Zhang, Zi-qiao Zheng, Qing-lin Pan,