Microstructure and mechanical properties of suction-cast aluminium-cerium alloys

被引：4
|
作者：
Gope, Rahul [1 ]
Mondol, Sukla [2 ]
Ganguly, Sourav [3 ]
Mandal, Animesh [1 ,4 ]
机构：
[1] Indian Inst Technol Bhubaneswar, Sch Minerals Met & Mat Engn, Argul, India
[2] Natl Inst Technol, Dept Met & Mat Engn, Warangal, India
[3] Inst Minerals & Mat Technol IMMT, Adv Mat Technol Dept, CSIR, Bhubaneswar, India
[4] Indian Inst Technol Bhubaneswar, Sch Minerals Met & Mat Engn, Argul 752050, Odisha, India
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 17期
关键词：
Aluminium alloys; Suction-casting; Hardness; Tensile behaviour; Brittle fracture; AL-CE; GRAIN-SIZE; CU; PRECIPITATION; SYSTEM; SC; ZR;
D O I：
10.1080/02670836.2023.2228056
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present investigation, the microstructure and tensile properties of Al-12Ce, Al-12Ce-4Si, and Al-12Ce-4Si-0.4Mg alloys (wt-%), fabricated by suction-casting (SC) and gravity-casting (GC) were compared. The SC alloys exhibited finer grains and a higher number of precipitates than the GC alloys. Addition of Si and Mg in Al-12Ce alloy improved the hardness substantially. Incorporation of 4Si and 0.4Mg enhanced the yield and tensile stress but reduced ductility in the SC alloys. The SC Al-12Ce-4Si-0.4Mg alloy illustrated the best hardness and tensile strength. The fracture behaviour of the SC Al-12Ce alloy changed from quasi-cleavage to complete cleavage fracture following the addition of 4Si and 0.4Mg.
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页码：2824 / 2841
页数：18
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