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http://dx.doi.org/10.5695/JKISE.2018.51.5.297

Development of Sn-Al Thermal Diffusion Coating Technology for Improving Anti-Galling Characteristics of 304 Stainless Steel  

Hwang, Ju-Na (Dept. of Aeronautical & Mechanical Design Engineering, Korea National University of Transportation)
Kang, Sung-Hun (KB-Biomed)
Cho, Sungpil (4D Biomaterials Center, Korea National University of Transportation)
Jeong, Hui-Jong (Viblock Co. Ltd.)
Kim, Dong-Uk (Viblock Co. Ltd.)
Lee, Bang-Hui (Viblock Co. Ltd.)
Hwang, Jun (Dept. of Aeronautical & Mechanical Design Engineering, Korea National University of Transportation)
Lee, Yong-Kyu (4D Biomaterials Center, Korea National University of Transportation)
Publication Information
Journal of the Korean institute of surface engineering / v.51, no.5, 2018 , pp. 297-302 More about this Journal
Abstract
The important drawback of hardware fasteners consisted of 304 stainless steel (STS) is a frequent galling caused by a combination of friction and adhesion between the sliding surface. To improve the anti-galling effect, Sn-Al coatings by a thermal diffusion have been developed. The thermal diffusion by pack cementation with an $AlCl_3$ activator at $250^{\circ}C$ for 1 hour produced an Sn-Al alloy coating layer with an average thickness of $9.9{\pm}0.5{\mu}m$ on the surface of 304 STS fasteners. Compared with the galling frequency of the 304 STS fasteners, Sn-Al coatings on the surface of 304 STS fasteners demonstrated about 2.8-time reduction of the galling frequency.
Keywords
Thermal diffusion coating; Tin-Aluminum; Anti-galling; Stainless steel; Pack cementation;
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Times Cited By KSCI : 1  (Citation Analysis)
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