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RETRACTED ARTICLE: Comparison on grain refinement efficiency of peritectic and eutectic alloying elements on pure aluminium

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This article was retracted on 11 March 2016

Abstract

The work investigated the grain refining efficiency of peritectic forming solutes as well as eutectic solutes on pure Al. Significant grain refinement for peritectic and small refinement for the eutectic elements were achieved and the mechanisms of refinement were studied. In order to investigate the grain structure and solidification phenomena for each set of alloys, a TP-1 test, as well as thermal analysis, was performed and back scattered images were used to analyze the phases that may contribute to the grain refinement. It appears that the significant grain refinement of peritectic elements is due to the formation of in-situ properitectic particles and their appropriate constitutional undercooling. The results suggest that the availability of potent nuclei and exogenous particles play major roles in the grain refinement efficiency. However, in the case of eutectic elements only segregation power contributes to refinement whilst the availability of potent nuclei is of paramount importance.

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Correspondence to R. Haghayeghi.

Additional information

This article has been retracted at the request of the editorial board of Metals and Materials International. The article was examined following the COPE guidelines with regard to suspected plagiarism in a published manuscript.

The article contains a substantial amount of taken from a previously published article with no acknowledgement of the source.

Fig. 2 (a) and (b) and Fig. 3 are taken from: Revisiting the role of peritectics in grain refinement of Al alloys Feng Wang, Zhilin Liu, Dong Qiu, John A. Taylor, Mark A. Easton, Ming-Xing Zhang Acta Materialia 61 (2013) 360–370

Fig. 2 (a) and (b) are taken from Fig. 9 (a) and (c). In the original source, the figure is related to cooling curves of pure Al and Al-0.40 wt% V, but in the paper in question it is presented as cooling curves of Al-1.6 wt% Cu and Al-0.18 wt% V

Fig. 3 is taken with slight modification from Fig. 8 (c) and (d). In the original source, the figure is related to SEM results for Al-0.40 wt% V, but in the paper in question it is presented as SEM results for Al-0.18 wt% V

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Haghayeghi, R., Kapranos, P. RETRACTED ARTICLE: Comparison on grain refinement efficiency of peritectic and eutectic alloying elements on pure aluminium. Met. Mater. Int. 20, 713–717 (2014). https://doi.org/10.1007/s12540-014-4016-z

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  • DOI: https://doi.org/10.1007/s12540-014-4016-z

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