The authors wish to make the following correction to this paper [1]:
The microstructure of the AA1100 base metal (Figure 8b) was shown for the wrong sample. This was caused by a wrong micrograph being included in the assembly of images from a similar aluminium base metal sample, but of different grade (6xxx).
We have reverted to the AA1100 weld sample, repolished and re-etched, and retaken the image. We have taken the opportunity to replace the original Figure 8 by repeating the metallography test. Hence, the following correction needs to be made to Figure 8.
1. Correction—Old Version
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2. Correction—New Version
The old Figure 8 needs to be replaced with the following:
Figure 8.
Microstructure of the grain distribution in the cross section of the AA1100 FSW weld (processed at 1120 rpm and 250 mm/min); (a) general view of the cross section, (b) the base metal, and (c) the stirring zone (SZ), at higher magnification.
The purpose of Figure 8 was to show the changes in grain morphology and size across the weld section. We have taken this opportunity to provide a better quality image.
The change is limited to the replacement of Figure 8 and edits to the caption.
The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.
Reference
- Tamadon, A.; Baghestani, A.; Bajgholi, M.E. Influence of WC-Based Pin Tool Profile on Microstructure and Mechanical Properties of AA1100 FSW Welds. Technologies 2020, 8, 34. [Google Scholar] [CrossRef]
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