Influence of carrier gas composition on microstructures and mechanical properties of cold-sprayed titanium coatings

Y. Ichikawa, K. Ogawa, N. Nose, Y. Nomura, M. Takahashi, H. Amano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Microstructures and mechanical properties of cold sprayed coatings depend on the spraying parameters, such as, gas temperature, gas pressure, etc. Carrier gas is also one of the key parameters for engineering these coatings. Gas and particle velocities depend markedly on types of gases and their pressures. Therefore, coating quality drastically changed by carrier gas characteristics. Moreover, gas purity is directly associated with gas price and manufacturing cost and it is also important for industrial users. In contrast, small changes of purity do not strongly affect carrier gas velocity. However, the carrier gas and sprayed particles are possible to interact during spraying process. Moreover, the gas impurities can effect on the coating quality. In order to make clear the effects of gas composition on coating quality, this study investigated mechanical properties and microstructures of several cold-sprayed titanium coatings, which produced with different gas composition. Carrier gases were helium-based gases, with impurity levels up to 10% in volume. The results indicated that the gas composition strongly affected the mechanical properties of coatings, which it is also important factor of coating production.

Original languageEnglish
Title of host publicationInternational Thermal Spray Conference and Exposition, ITSC 2013
Subtitle of host publicationInnovative Coating Solutions for the Global Economy
PublisherASM International
Pages205-209
Number of pages5
ISBN (Print)9781632666819
Publication statusPublished - 2013 Jan 1
EventInternational Thermal Spray Conference and Exposition: Innovative Coating Solutions for the Global Economy, ITSC 2013 - Busan, Korea, Republic of
Duration: 2013 May 132013 May 15

Publication series

NameProceedings of the International Thermal Spray Conference

Other

OtherInternational Thermal Spray Conference and Exposition: Innovative Coating Solutions for the Global Economy, ITSC 2013
CountryKorea, Republic of
CityBusan
Period13/5/1313/5/15

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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