Effect of Sc on the Hot Cracking Properties of 7xxx Aluminum Alloy and the Microstructure of Squeeze Castings
| العنوان: | Effect of Sc on the Hot Cracking Properties of 7xxx Aluminum Alloy and the Microstructure of Squeeze Castings |
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| المؤلفون: | Zhihua Gao, Yuelong Bai, Purui Zhao, Wei-min Mao, Yongtao Xu, Zhifeng Zhang |
| المصدر: | Materials, Vol 14, Iss 6881, p 6881 (2021) Materials Volume 14 Issue 22 |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Technology, Materials science, Alloy, microstructure, chemistry.chemical_element, engineering.material, mechanical properties, Article, hot tearing, Aluminium, Tearing, Ultimate tensile strength, General Materials Science, Composite material, Ingot, aluminum alloys, Microscopy, QC120-168.85, QH201-278.5, Microstructure, Engineering (General). Civil engineering (General), Grain size, TK1-9971, Cracking, chemistry, Descriptive and experimental mechanics, engineering, Electrical engineering. Electronics. Nuclear engineering, TA1-2040 |
| الوصف: | In this paper, the effect of adding the refiner Sc to the high Zn/Mg ratio 7xxx series aluminum alloy melt on the hot tearing performance, microstructure, and mechanical properties of the alloy is studied. The hot tearing performance test (CRC) method is used to evaluate the hot tearing performance of the alloy. The squeeze casting process was used to form solid cylindrical parts to analyze the structure and properties of the alloy. This study shows that the hot cracking sensitivity of the alloy after the addition of the refiner Sc is significantly reduced. The ingot grain size is significantly reduced, and the average grain size is reduced from about 86 μm to about 53 μm. While the mechanical properties are significantly improved, and the tensile strength reduced from 552 MPa is increased to 571 MPa, and the elongation rate is increased from 11% to 14%. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1996-1944 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70099b559854950420558c56aa325405 https://www.mdpi.com/1996-1944/14/22/6881 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....70099b559854950420558c56aa325405 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19961944 |
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