Effect of a deep cryogenic treatment on wear and microstructure of a 6101 aluminum alloy

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Autore principale: Steier, Volker Franco
Data di pubblicazione: 2016
Altri autori: Ashiuchi, Edgar Sobral, Araújo, José Alexander
Natura: Article
Lingua: eng
Fonte: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/21496
http://dx.doi.org/10.1155/2016/1582490
Riassunto: The aim of this work is to evaluate the effect of a deep cryogenic treatment (DCT) on the wear behavior and on the microstructure of an aluminum alloy. In order to compare the level of improvement on the wear resistance provided by the DCT with a more traditional technique, a test matrix which included DCT, CrN coated specimens, and combinations of both modification methods was conducted.The wear behavior was investigated using microabrasive wear tests.Thecryogenic treated specimens proved to have similar lowwear rates as the specimens coated with CrN. The most distinct improvementwas reachedwith a combination of both techniques. In the case of the DCT, the performed microstructural analysis identified the generation of additional GP-zones as the reason for the improved wear resistance.