کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8023174 1517531 2018 37 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tribocorrosion behavior of boronized AISI 4140 steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Tribocorrosion behavior of boronized AISI 4140 steel
چکیده انگلیسی
In this study, AISI 4140 steel was boronized using powder-pack‑boronizing process, seeking to produce a monophasic iron boride (Fe2B) layer. The microstructural and chemical characteristics were evaluated by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), respectively and Grazing incidence X-ray diffraction (GIXRD). Mechanical behavior was probed by instrumented indentation while tribological behavior was determined through pin-on-disc tests. For the pin-on-disc tests, two condition were evaluated, dry condition and also immersed in 3.5% NaCl solution, which was connected to a potentiostat, monitoring the open circuit potential (OCP). The single Fe2B layer was indeed obtained with a thickness around 42 μm. The iron boride layer showed significantly lower wear rate and also lower coefficient of friction (COF) during tribocorrosion tests, in comparison with unboronized specimens. An opposite behavior was verified during dry tribological tests, where unboronized samples presented lower COF behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 352, 25 October 2018, Pages 265-272
نویسندگان
, , , ,