Development of the microstructure and mechanical properties of cold-sprayed IN718 alloy coating by a novel in-situ shot peening process

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

Abstract

In this study, in-situ shot-peening approach was introduced by mixing large stainless steel (SS) shots with diameters over 150 pm with IN718 spray powders to aim at developing a novel approach to achieve dense coating. Effect of mixed stainless steel shot content on the microstructure and mechanical properties of the IN718 coating was examined. Results show that IN718 coating can be deposited without any shot peening particle inclusions for their relatively low velocity. It was revealed that the deposition efficiency of the IN 718 powders is improved by the in-situ shot peening effect. With increasing shot fraction in the powder mixture from 0% to 50 vol.%, the coating porosity decreased from 5.6% to 0.2% only by using N2 accelerating gas. Remarkable work hardening induced by impact of the shot peening particles was detected.

Original languageEnglish
Title of host publicationASM International - International Thermal Spray Conference and Exposition, ITSC 2015
EditorsArvind Agarwal, Yuk-Chiu Lau, Andre McDonald, Giovanni Bolelli, Filofteia-Laura Toma, Amadeu Concustell, Christian A. Widener, Erja Turunen
PublisherASM International
Pages293-298
Number of pages6
ISBN (Electronic)9781510811546
StatePublished - 2015
EventInternational Thermal Spray Conference and Exposition, ITSC 2015 - Long Beach, United States
Duration: 11 May 201514 May 2015

Publication series

NameProceedings of the International Thermal Spray Conference
Volume1

Conference

ConferenceInternational Thermal Spray Conference and Exposition, ITSC 2015
Country/TerritoryUnited States
CityLong Beach
Period11/05/1514/05/15

Fingerprint

Dive into the research topics of 'Development of the microstructure and mechanical properties of cold-sprayed IN718 alloy coating by a novel in-situ shot peening process'. Together they form a unique fingerprint.

Cite this