کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5467838 1518624 2017 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strengthening effect of nano-scaled precipitates in Ta alloying layer induced by high current pulsed electron beam
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Strengthening effect of nano-scaled precipitates in Ta alloying layer induced by high current pulsed electron beam
چکیده انگلیسی
In this study, the combination of magnetron sputtering and high current pulsed electron beam are used for surface alloying treatment of Ta film on high speed steel. And the Ta alloying layer is about 6 μm. After tempering treatment, TaC phase forms in Ta alloying layer when the treated temperature is over 823 K. Through the TEM and HRTEM observation, a large amount of nano-scaled precipitates (mean diameter 5-8 nm) form within the δ-Fe grain in Ta alloying layer after tempering treatment and these nano-scaled precipitates are confirmed as TaC particles, which contribute to the strengthening effect of the surface alloying layer. The hardness of tempered alloying layer can reach to 18.1 GPa when the treated temperature is 823 K which increase by 50% comparing with the untreated steel sample before surface alloying treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 398, 1 May 2017, Pages 9-12
نویسندگان
, , , , ,