Effect of Sc and Zr addition on mechanical properties of cellular aluminum foam

被引：0
|
作者：
Huang, Li [1 ,2 ,3 ]
Liu, Shanguang [1 ,2 ,3 ]
Hao, Huilin [1 ,2 ,3 ]
Li, Shasha [1 ,2 ,3 ]
Du, Xuchu [1 ,2 ,3 ]
Lu, Zheng [1 ,2 ,3 ]
机构：
[1] AECC Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China
[2] Beijing Engn Res Ctr Adv Aluminum Alloys & Applica, Beijing 100095, Peoples R China
[3] Innovat Ctr Adv Aluminum Alloy, Beijing 100095, Peoples R China
来源：
CAILIAO GONGCHENG-JOURNAL OF MATERIALS ENGINEERING | 2024年 / 52卷 / 11期
关键词：
cellular alluminum alloy foam; precipitate phase; aging-treatment; resistance; compressive strength; AL-ZR; PRECIPITATION EVOLUTION; TI ALLOYS; MINOR SC; SCANDIUM; MICROSTRUCTURE; REFINEMENT; RESISTANCE;
D O I：
10.11868/j.issn.1001-4381.2022.000856
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ca and TiH2 as the thickening agent and blowing agent, respectively, Al-0. 16Sc, Al0. 21Sc, and Al-0. 16Sc-0. 17Zr cellular foams with porosity of (72 +/- 0. 5)degrees o were successfully fabricated by the melt-foaming method. The microstructure and compressive strength of the foams with isochronal aging treatment were investigated. The results show that during isochronal aging between 200 degrees C and 600 degrees C, Al-0. 16Sc and Al-0. 21Sc foams achieve their peak yield strengths (about 21. 4 MPa and 26. 8 MPa, respectively) at 325 degrees C due to the precipitation strengthening of Al3Sc/Al-3(Sc1-xTix). Unlike the AlSc foam, the yield strength of the Al-0. 16Sc-0. 17Zr alloy foam reaches 23. 7 MPa at 325 degrees C and 24. 7 MPa at 400 degrees C, representing an increase of 100. 8 degrees o and 109 degrees o than those of the cast alloy, respectively. Zr addition not only significantly enhances the strength of the Al-Sc foams, but also effectively affects the coarsening of the Al3Sc/Al-3(Sc1-xTix) precipitate.
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页码：107 / 117
页数：11
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