1 Correction to: Rare Met. DOI 10.1007/s12598-016-0692-9

The original version of this article was inadvertently published with incorrect references as below:

Section 1:

“Friction-stir welding (FSW) technology invented at The Welding Institute, UK, in December 1991 is a solid-state joining process for joining aluminum alloys and used increasingly in aerospace, transportation and car manufacturing industries [1, 2].”

Section 3.2:

“It can be said that the presence of threads on the pin enhances flow and mixing of materials. As expected, the absence thread on the pin restricts the material flow around the pin and subsequently reduces the WNZ area.”

The correct reference is updated as below:

Reference “Thomas WM, Nicholas ED, Needham JC, Murch MG, Temple Smith P and Dawes CJ: Friction stir butt welding, 1991, US Patent 9125978·8.” should be added as Ref. [3] to the above sentence in Section 1.

Reference “Eftekharinia H, Amadeh AA, Khodabandeh A, Paidar M. Microstructure and wear behavior of AA6061/SiC surface composite fabricated via friction stir processing with different pins and passes. Rare Met. 2016, 492–493(4):1.” should be added as Ref. [17] to the above sentence in Section 3.2.

And correspondingly all of the references should be reordered.