Influence of the Mg/Si Ratio on Speed Extrusion of 6XXX Alloys

被引：0

作者：

Gradoboev, Alexander ^{[1
]}

Matveeva, Irina ^{[1
]}

Ryabov, Dmitry ^{[1
]}

Vakhromov, Roman ^{[1
]}

Mann, Victor ^{[2
]}

Krokhin, Aleksandr ^{[2
]}

机构：

[1] LMTI LLC, 6-21 Leninsky Prospect, Moscow 119049, Russia

[2] UC RUSAL, Vasilisa Kozhina Str 1,Floor 2,Room 24, Moscow 121096, Russia

来源：

LIGHT METALS 2022 | 2022年

关键词：

Aluminium billets; Aluminium extrusion; High-speed extrusion; High-speed 6XXX alloys; MagnesiumSilicon ratio; MaxiFlow alloys; Anodizing response;

D O I：

10.1007/978-3-030-92529-1_45

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Development of the building and construction and automotive industries sets the task to increase the productivity of equipment and reduce the cost of aluminium extrusion. The absolute majority among all aluminium wrought alloys for extrusion belongs to Al- Mg-Si alloys (6XXX series). The small additions of Magnesium and Silicon allow precipitation of metastable phases with Mg/Si ratio close to 1 during aging, resulting in 5 times higher strength in comparison with pure aluminium. The paper shows the evaluation of the effect of MagnesiumSilicon ratio on the extrusion speed of the developed high-speed 6XXX alloys named as MaxiFlow family. Specially developed composition and homogenization parameters of these alloys ensure the increase of extrusion speed up to 10-30% compared to the standard alloys. The study of the influence of the content of alloying and impurity elements and modes of homogenization on the phase composition of 6XXX billets is presented as well as the anodizing response.

引用

页码：322 / 328

页数：7

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