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Fatigue strength of Mg alloy coated with Al coatings via in-situ shot-peening assisted cold spray

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, pure Al coatings were deposited on ZK60-T5 Mg alloy substrates via in-situ shot-peening assisted cold spray in order to study the effect of the Al coating on fatigue behavior of coated samples. Fatigue behavior of the coated and un-coated samples has been investigated through experimental tests. The size and shape distribution of powders, microstructural characteristics of coatings and fractography of fatigue test samples have been studied using scanning electron microscopy. The average microhardness of pure Al coating is higher than 70 HV50. In order to obtain the fatigue S-N diagram for each set, coated and un-coated samples have been tested in a load-controlled condition. The tension-compression fatigue experiments reveal that the fatigue property of ZK60-T5 alloy coated with pure Al coatings has significantly deteriorated compared with un-coated samples.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition, ITSC 2017
PublisherASM International
Pages772-776
Number of pages5
ISBN (Electronic)9781510858220
StatePublished - 2017
EventInternational Thermal Spray Conference and Exposition, ITSC 2017 - Dusseldorf, Germany
Duration: 7 Jun 20179 Jun 2017

Publication series

NameProceedings of the International Thermal Spray Conference
Volume2

Conference

ConferenceInternational Thermal Spray Conference and Exposition, ITSC 2017
Country/TerritoryGermany
CityDusseldorf
Period7/06/179/06/17

Keywords

  • Aluminum coating
  • Cold spray
  • In-situ shot-peening
  • Magnesium alloy
  • Microstructure
  • Tension-compression fatigue strength

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