Dust explosion properties of aluminum, titanium, zinc and iron based alloy powders used for cold spray

K. Sakata, K. Tagomori, N. Sugiyama, S. Sasaki, Y. Shinya, T. Nanbu, Y. Kawashita, I. Narita, Hirofumi Miyahara

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

Abstract

Cold-spray processing typically employs finer and smaller-diameter metal powders than those of the conventional thermal spraying powders. Furthermore, cold-sprayed particles exhibit fewer oxides than thermally sprayed particles due to the absence of particle melting during spraying. For these reasons, it is necessary to give extra attention to dust explosion and dust fire when using the cold spray, for industrial and R&D purposes. The dust explosion properties of metal powders used for the cold spray were examined for the purpose of not only preventing the dust explosions and fires, but also protecting the workers' safety and health. In order to utilize this new technology of cold spray for industrial use, it is necessary to manage the risks based on risk assessment. However, there are few research reports focused on such risk management. Therefore, in this study, the dust explosion properties of aluminum, titanium, zinc and iron based alloy powders were evaluated by JIS Z 8818: "Test method for minimum explosible concentration of combustible dusts", IEC61241-2-3(1994-09) Section3: "Method for determining minimum ignition energy dust/air-mixtures", and JIS Z 8817: "Test method for explosion pressure and rate of pressure rise of combustible dusts". This paper reports on the dust explosion properties of the above-mentioned metal powders.

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
Pages190-195
Number of pages6
ISBN (Print)9781632666819
Publication statusPublished - Jan 1 2013
EventInternational Thermal Spray Conference and Exposition: Innovative Coating Solutions for the Global Economy, ITSC 2013 - Busan, Korea, Republic of
Duration: May 13 2013May 15 2013

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
Period5/13/135/15/13

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Sakata, K., Tagomori, K., Sugiyama, N., Sasaki, S., Shinya, Y., Nanbu, T., Kawashita, Y., Narita, I., & Miyahara, H. (2013). Dust explosion properties of aluminum, titanium, zinc and iron based alloy powders used for cold spray. In International Thermal Spray Conference and Exposition, ITSC 2013: Innovative Coating Solutions for the Global Economy (pp. 190-195). (Proceedings of the International Thermal Spray Conference). ASM International.