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304 스테인레스강의 고착방지성능 향상을 위한 Sn-Al 열 확산 코팅 기술 개발
황주나(Ju-Na Hwang),강성훈(Sung-Hun Kang),조성필(Sungpil Cho),정희종(Hui-Jong Jeong),김동욱(Dong-Uk Kim),이방희(Bang-Hui Lee),황준(Jun Hwang),이용규(Yong-Kyu Lee) 한국표면공학회 2018 한국표면공학회지 Vol.51 No.5
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 AlCl₃ activator at 250℃ for 1 hour produced an Sn-Al alloy coating layer with an average thickness of 9.9 ± 0.5 μm 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.