Microstructure and Properties of Semi-Solid Aluminum Alloys: A Literature Review

被引：69
作者：
Pola, Annalisa [1 ]
Tocci, Marialaura [1 ]
Kapranos, Plato [2 ]
机构：
[1] DIMI Mech & Ind Engn Dept, Via Branze 38, I-25123 Brescia, Italy
[2] Univ Sheffield, Dept Mat Sci & Engn, Sir Robert Hadfield Bldg,Mappin St, Sheffield S1 3JD, S Yorkshire, England
来源：
METALS | 2018年 / 8卷 / 03期
关键词：
semi-solid; microstructure; mechanical properties; wear; corrosion; AL-SI ALLOY; SLIDING WEAR BEHAVIOR; PRESSURE DIE CAST; MG-CU ALLOY; MECHANICAL-PROPERTIES; PITTING CORROSION; METAL-ALLOYS; FATIGUE CHARACTERISTICS; ULTRASOUND TREATMENT; HEAT-TREATMENT;
D O I：
10.3390/met8030181
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Semi-solid processing of aluminum alloys is a well-known manufacturing technique able to combine high production rates with parts quality, resulting in high performance and reasonable component costs. The advantages offered by semi-solid processing are due to the shear thinning behavior of the thixotropic slurries during the mold filling. This is related to the microstructure of these slurries consisting of solid, nondendritic, near-globular primary particles surrounded by a liquid matrix. This paper presents a review on the formation of this nondendritic microstructure, reports on the different proposed mechanisms that might be responsible, and illustrates the relationship between microstructure and properties, in particular, tensility, fatigue, wear, and corrosion resistance.
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页数：17
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