Effect of electroless Ni-B and Ni-W-B coatings on the corrosion-fatigue behaviour of 7075 Al alloy

Rasid Ahmed Yildiz*, Kenan Genel, Turgut Gulmez

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Özet

This research experimentally determines the effect of electroless Ni-B and Ni-W-B coatings on the fatigue and corrosion-fatigue life of 7075 Al alloy substrate. SEM, XRD, fracture toughness and potentiodynamic polarization tests exhibited the characteristics of the coatings. The fatigue test results revealed that easy crack initiation from the brittle coating is the main responsible for a reduction in fatigue performance of coated specimen. The Ni-B coating offered superior resistance in terms of both corrosion and corrosion fatigue compared to Ni-W-B coating. Considerable improvement was achieved in corrosion fatigue performance of Ni-B coated specimens.

Orijinal dilİngilizce
Makale numarası106040
DergiInternational Journal of Fatigue
Hacim144
DOI'lar
Yayın durumuYayınlandı - Mar 2021

Bibliyografik not

Publisher Copyright:
© 2020 Elsevier Ltd

Finansman

This study was supported by Istanbul Technical University, Project Number 34461.

FinansörlerFinansör numarası
Istanbul Teknik Üniversitesi34461

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