کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9809648 1517713 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Feasibility of laminar plasma-jet hardening of cast iron surface
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Feasibility of laminar plasma-jet hardening of cast iron surface
چکیده انگلیسی
Nontransferred DC laminar plasma jets of stable flow and low impinging pressure acting on the substrate were used to heat W-Mo-Cu cast iron for phase transfer hardening of the surface layer. Substrates were heated in multipass with or without overlapping or heated with only single-pass. Surface morphologies of the molten trace and microstructure of the cross-section were observed, and the hardness distribution of the treated surface layer was examined. The surface layer of single-pass-heated specimen has an average hardness of about 900 HV0.1, while the specimen treated with multipass shows an average hardness of about 700 HV0.1, because of the heat effect from the neighboring pass treating, compared with the substrate hardness of about 300 HV0.1. The results demonstrate the stable and favorably controlled heating of the laminar plasma jet on the substrate surface and feasibility of using it as a tool for surface hardening of cast iron.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 197, Issues 2–3, 22 July 2005, Pages 345-350
نویسندگان
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