Synergistic Effect of Mo and V Addition on Al-Si Alloys Containing High Iron Impurity

被引：2
|
作者：
Kishor, Modalavalasa [1 ]
Ram, Karri Yaswin Phani [1 ]
Rao, A. K. Prasada [1 ]
Nahid, Shaik Ansar Ghousiya [2 ]
Ramavajjala, Anil Kumar [2 ]
机构：
[1] BML Munjal Univ, Gurugram 122413, India
[2] Jawaharlal Nehru Aluminum Res Dev & Design Ctr, Nagpur 440023, Maharashtra, India
来源：
INTERNATIONAL JOURNAL OF METALCASTING | 2024年 / 18卷 / 04期
关键词：
Fe-rich intermetallic; Al-Si alloys; morphological refinements; microstructural analysis; molybdenum; vanadium; MECHANICAL-PROPERTIES; RICH INTERMETALLICS; THERMAL-ANALYSIS; FE; ALUMINUM; SOLIDIFICATION; PHASES; CURVE;
D O I：
10.1007/s40962-024-01274-z
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The current study aims to take a step forward in understanding the morphological changes of Fe-rich intermetallics using Fe correctors. Specifically, minor additions of molybdenum (Mo) and vanadium (V) were employed to investigate the morphological changes in hard beta-phases (beta-Al5FeSi) into granular alpha-phases in Al-Si-2.5Fe scrap alloy. The microstructure and composition of the intermetallic phases were characterized using SEM-EDS, Xrd, and optical microscopy. The combined effect of vanadium and molybdenum showed significant improvement in intermetallic formation while suppressing the platelet beta-Al5FeSi morphologies. Interestingly, a new quinary AlSiFeMoV phase was discovered through SEM-EDS and XRD. Thermal analysis was performed to investigate the influence of Fe-rich intermetallics in the presence of alloying additions V and Mo. Moreover, the microstructure revealed various alpha-phase morphologies, including quadrilateral, polygonal, and Chinese script structures, which were subjected to detailed intermetallic analysis in this study. A hardness test was performed to understand the effect of Mo and V additions on the Al-Si-2.5Fe scrap alloy. A synergistic effect was observed at 1 wt.% of Mo and V additions in the scrap alloy revealed that significant drop up to 17.19% hardness was observed in the synergistic-affected alloy.
引用
收藏
页码：3538 / 3548
页数：11
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