Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5443744 | Scripta Materialia | 2017 | 4 Pages |
Abstract
In a recent paper, Sisi Xiang & al. [Acta Materialia 116 (2016) 343] studied microstructure evolutions of γⲠprecipitates during creep of a Ni-based single crystal superalloy, with a special focus on hyperfine γⲠparticles nucleating in the γ matrix channels. This paper is misleading, claiming that hyperfine γⲠparticles nucleate during high temperature creep exposure at 1100 °C. The aim of the present comments is to reconsider these results based on the available literature on hyperfine γⲠparticles nucleation mechanisms and subsequent morphological evolutions at high temperature.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jonathan Cormier, Vincenzo Caccuri, Jean-Briac le Graverend, Patrick Villechaise,