Duplex surface treatments of light alloys

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Abstract

Duplex or hybrid surface engineering is the sequential application of two (or more) established surface technologies to produce a surface composite with combined properties which are unobtainable through any individual surface technology. Low friction coatings such as DLC, nitrides and oxides can be used as the top coating layer, which can not only increase wear resistance but also diminish interfacial shear stress and strain, and reduce the tendency for debonding of top coatings. A deep case-hardened layer can be used as the bottom layer, which can significantly enhance the load-bearing capacity and improve the coating/film adhesion. In this chapter, the mechanisms, potential techniques, and applications of the duplex and hybrid treatments of titanium and aluminium alloys have been summarized.
Original languageEnglish
Title of host publicationSurface Engineering of Light Alloys Aluminium: Magnesium and Titanium Alloys
EditorsHanshan Dong
Place of PublicationBoca Raton
PublisherWoodhead
Pages501-545
Number of pages662
ISBN (Print)9781845695378
Publication statusPublished - 2010

Publication series

NameWoodhead Publishing Series in Metals and Surface Engineering
PublisherWoodhead Publishing

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