大気圧熱プラズマジェットにより窒化した鉄鋼表面のトライボロジー特性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2024/05/01

タイトル(英語): Tribological Properties of Steel Surface Nitrided by Atmospheric-Pressure Thermal Plasma Jet

著者名: 安藤　祥歩（大分大学理工学部），小栁　皓幹（大分大学理工学部），市來　龍大（大分大学理工学部），大津　健史（大分大学理工学部），古木　貴志（大分大学理工学部），金澤　誠司（大分大学理工学部）

著者名(英語): Shoho Ando (Faculty of Science and Technology, Oita University), Koki Koyanagi (Faculty of Science and Technology, Oita University), Ryuta Ichiki (Faculty of Science and Technology, Oita University), Takefumi Otsu (Faculty of Science and Technology, Oita University), Takashi Furuki (Faculty of Science and Technology, Oita University), Seiji Kanazawa (Faculty of Science and Technology, Oita University)

キーワード: 大気圧プラズマ窒化，トライボロジー特性，局所酸化　　atmospheric-pressure plasma nitriding，tribological property，local oxidization

要約(英語): We performed the ball-on-disk tribological test for tool steels nitrided by the atmospheric-pressure pulsed-arc plasma jet to investigate improvement of the wear resistance. The test with an alumina ball proved that the plasma-jet nitriding decreases the wear rate approximately by half. Moreover, the friction coefficient, as well as the wear rate, is reduced drastically when the compound layer has been formed on the outermost steel surface. In addition, we examined the tribological properties of the locally oxidized spot undesirably formed on the steel surface during the relevant nitriding treatment. As a result, the oxidized spot can be readily removed in a few minutes even by relatively a small load.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.144 No.5 （2024）

本誌掲載ページ: 159-164 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/144/5/144_159/_article/-char/ja/