[Kovove materialy - Metallic materials]
    Wed - September 26, 2018 - 15:21 No. of hits : 962622 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 55 (2017), Issue 6

Influence of zinc addition on the precipitation in Al-Mn-Zr alloys
KARLIK, M., VRONKA, M., HAUŠILD, P., KOVÁŘÍK, O.
vol. 55 (2017), no. 6, pp. 395 - 401

Abstract
Two Al-Mn-Zr alloys produced by twin-roll casting having almost the same chemical composition except for the content of zinc (0.10 and 1.66 wt.%, respectively) were investigated. Precipitation reactions during two-step annealing were examined by means of electrical conductivity and differential scanning calorimetry. Furthermore, SEM quantitative particle analysis, energy dispersive spectroscopy, and electron backscattered diffraction were carried out. The results show that 1.1 to 1.8 wt.% of zinc enters into constituent Al15(Mn,Fe)3Si2 phases and that zinc improves nucleation of small Al(Mn,Fe)Si particles, 20 to 100 nm in size, which is beneficial for the recrystallization resistance of the alloy.

Key words
Al-Mn-Zr alloys, Zn addition, microstructure, SEM quantitative particle analysis, phase analysis

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


Article abstracts updated: 2018-08-28 08:52      
Articles in press revised: 2018-09-06 12:56     
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