Microstructural evolution and mechanical property enhancement of a cold sprayed Cu-Zn alloy coating by post-spray friction stir processing

C. J. Huang, Y. C. Xie, C. Verdy, M. P. Planche, H. L. Liao, G. Montavon, W. Y. Li, Y. Feng

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

Abstract

An innovative hybrid process which combines the two very effective solid-state techniques of cold spraying (CS) and friction stir processing (FSP), was proposed to fabricate a high-strength ultrafine-grained Cu-Zn coating. Results show that the CSed coating had an elongated microstructure with 78.42% of low-angle grain boundaries. Following FSP, there appear ultrafine grains with 90.47% of high-angle grain boundaries and a composition of α, β' and γ phases while the CSed coatings was mainly a. Significant mechanical properties enhancement is achieved, i.e. with the ultimate tensile strength increasing from 87.2 MPa to 257.5 MPa and fracture elongation increasing from 0.17% to 0.81%. The precipitates have a significant effect on the fracture behavior of FSPed coating.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition, ITSC 2017
PublisherASM International
Pages425-428
Number of pages4
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
Volume1

Conference

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

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