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Surface Modification of Ferritic Stainless Steel by Active Screen Plasma Nitriding Nii, Hiroaki 70330173 Nishimoto, Akio (C) IOP Publishing Ltd アクティブスクリーンプラズマ窒化法 ステンレス鋼 表面改質 active screen plasma nitriding stainless steel surface modification 関西大学 Kansai University Plasma nitriding is a surface modification process with a low environmental impact. Active screen plasma nitriding (ASPN) is one of the new plasma nitriding technologies, and can eliminate problems related to conventional direct current plasma nitriding (DCPN). In this study, ferritic stainless steel SUS430 samples were treated by ASPN to increase their wear resistance without decreasing their corrosion resistance. ASPN was performed in a nitrogen-hydrogen atmosphere with 25%N2 + 75%H2 for 18 ks at 623 K, 673 K, 723 K, 773 K, and 823 K under 600 Pa using an SUS304 screen. When the sample was treated at 673 K by ASPN, the pitting corrosion resistance and wear resistance of its surface were improved because of the formation of the Sα phase and a deposited layer containing Ni on the sample surface. IOP Publishing 2012-09 eng journal article VoR http://hdl.handle.net/10112/10445 https://kansai-u.repo.nii.ac.jp/records/11518 10.1088/1742-6596/379/1/012052 17426588 Journal of Physics: Conference Series 379 1 7 https://kansai-u.repo.nii.ac.jp/record/11518/files/KU-1100-20120900-00.pdf application/pdf 5.4 MB 2019-05-23