Alloy 5083 (AlMg4.5Mn0.7Cr0.15) obtained using rapidly solidified master alloys

被引：0

作者：

Ghica, G. V. ^{[1
]}

Buzatu, M. ^{[1
]}

Petrescu, I. M. ^{[1
]}

Iacob, G. ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Mat Sci & Engn Fac, Bucharest 060042, Romania

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2015年 / 17卷 / 5-6期

关键词：

Master alloys; Grain finishing; Rapid solidification; Morphology; Structure;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to increase the homogeneity, grain finishing and physic-mechanical characteristics of the AlMg4.5Mn0.7Cr0.15 (5083) alloy have been used in the development stage and treatment in the liquid phase: conventional solidified AlMg20 master alloy; solidified conventional and rapidly AlMn10, AlCr4 master alloys (which contains fusible heavy elements); solidified conventional and rapidly AlTi5B1 master alloy (for grain finishing). Rapid cooling performed on copper disk has allowed obtaining bands (splatters) with a thickness of 200...300 pm and about 1.5...3 mm wide. Solidification rate was estimated between 10(-2)...10(-3)C/s. The rapid cooling on copper disk of the master alloys ensured uniform dispersion leading to increased homogeneity and grain finishing alloy. Structural analyzes performed (SEI and X-ray diffraction), allowed to establish the main phases present in the master alloys and alloys solidified conventional and rapidly. The effect of rapid solidification was materialized in considerable improvement of the mechanical properties of alloy AlMg4.5Mn0.7Cr0.15 (5083).

引用

页码：799 / 805

页数：7

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