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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 1/2019

11.12.2018

Effects of Vanadium on Modification of Iron-Rich Intermetallics and Mechanical Properties in A356 Cast Alloys with 1.5 wt.% Fe

verfasst von: Bo Lin, Haoyu Li, Rui Xu, Huaqiang Xiao, Weiwen Zhang, Shaobo Li

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 1/2019

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Abstract

Formation of Fe-rich intermetallics and mechanical properties of vanadium-modified A356 cast alloys with 1.5 wt.% Fe were investigated using image analysis, scanning electron microscopy, differential scanning calorimetry, and a tensile test. The results showed that V content has no apparent influence on α-Al grain size in A356 alloys with high Fe content. Also, 0.8 wt.% V is beneficial for improving mechanical properties in A356 cast alloys with high Fe content. Specifically, these results can be attributed to the formation of Chinese script or block α-Fe phases, refined needle-like β-Fe (Al5FeSi), and decreased porosities. An excessive amount of V deteriorates mechanical properties of alloys because it leads to VSi2 formation, large sized iron-rich intermetallics, and increased porosities.
Vorheriger Artikel High-Temperature Oxidation of Stellite 12 Hardfacings: Effect of Mo on Characteristics of Oxide Scale
Nächster Artikel The Effect of Chemical Composition and Processing Technology on the Microstructure, Texture and Earing Behavior of DR Tinplate

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Metadaten
Titel
Effects of Vanadium on Modification of Iron-Rich Intermetallics and Mechanical Properties in A356 Cast Alloys with 1.5 wt.% Fe
verfasst von
Bo Lin
Haoyu Li
Rui Xu
Huaqiang Xiao
Weiwen Zhang
Shaobo Li
Publikationsdatum
11.12.2018
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 1/2019
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-018-3798-4

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