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Effect of molten particle temperature on the bonding formation during plasma spraying of metal alloy coatings

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Molten droplet temperature is a dominant factor influencing the bonding formation at the interface between splats during plasma spraying. In this study, the effect of molten droplet temperature on the interface bonding formation between nickel-base alloy splats was investigated. One novel shellcore-structured Mo-clad NiCr powder and conventional NiCr powder were used as the feedstock. Stainless steel with surface polishing was used as the substrate. The NiCrMo particle with a temperature over 2647 °C was generated by plasma spraying in comparison with that about 2167 °C for NiCr droplet. The molten droplet temperature when it impacted on the substrate surface was changed continuously by changing spray distance. The particle temperature was measured by DPV2000 and the interface bonding state was characterized by the cross-section samples of splat-substrate interface prepared by FIB. Results show that the interface bonding ratio can be increased from ∼40% to 80% when the average molten droplet temperature is increased from ∼2167 to 2647 °C.

Original languageEnglish
Title of host publicationASM International - International Thermal Spray Conference, ITSC 2018
EditorsFardad Azarmi, Timothy Eden, Hua Li, Filofteia-Laura Toma, Kantesh Balani, Tanvir Hussain, Kentaro Shinoda
PublisherASM International
Pages390-396
Number of pages7
ISBN (Electronic)9781510880405
StatePublished - 2018
EventInternational Thermal Spray Conference, ITSC 2018 - Orlando, United States
Duration: 7 May 2018 → 10 May 2018

Publication series

NameProceedings of the International Thermal Spray Conference
Volume2018-May

Conference

ConferenceInternational Thermal Spray Conference, ITSC 2018
Country/TerritoryUnited States
CityOrlando
Period7/05/18 → 10/05/18

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