EfFect of substrate preheating on bonding strength of cold-sprayed Mg coatings

X. K. Suo, M. Yu, M. P. Planche, H. Liao, M. Yu, W. Y. Li

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

1 Scopus citations

Abstract

A magnesium coating with a low porosity and high microhardness was elaborated using cold spraying. However at present, a poor bonding strength between the coating and substrate limits its application. This paper aims at improving the bonding strength between the coating and substrate using substrate preheating. Aluminum substrates were heated to 100, 200 and 300°C respectively by a flame prior to cold spraying. The results show that substrate preheating can significantly increase the bonding strength. The bonding strength increased from 3.3±0.8 MPa to 11.6±0.5 MPa when the substrate temperature increased from room-temperature to 200°C. The fracture analyses show that the coating fracture occurred within the coating when the substrate was preheated at 200°C.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition, ITSC 2012 - Air, Land, Water and the Human Body
Subtitle of host publicationThermal Spray Science and Applications
PublisherASM International
Pages317-322
Number of pages6
ISBN (Print)9781632666796
StatePublished - 2012
EventInternational Thermal Spray Conference and Exposition - Air, Land, Water and the Human Body: Thermal Spray Science and Applications, ITSC 2012 - Houston, TX, United States
Duration: 21 May 201224 May 2012

Publication series

NameProceedings of the International Thermal Spray Conference

Conference

ConferenceInternational Thermal Spray Conference and Exposition - Air, Land, Water and the Human Body: Thermal Spray Science and Applications, ITSC 2012
Country/TerritoryUnited States
CityHouston, TX
Period21/05/1224/05/12

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