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

    Fingerprint Dive into the research topics of 'Dust explosion properties of aluminum, titanium, zinc and iron based alloy powders used for cold spray'. Together they form a unique fingerprint.

    Cite this