کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5464478 | 1517555 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure related enhancement in wear resistance of tool steel AISI D2 by applying laser heat treatment followed by ultrasonic impact treatment
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructure related enhancement in wear resistance of tool steel AISI D2 by applying laser heat treatment followed by ultrasonic impact treatment Microstructure related enhancement in wear resistance of tool steel AISI D2 by applying laser heat treatment followed by ultrasonic impact treatment](/preview/png/5464478.png)
چکیده انگلیسی
The surface layers of tool steel AISI D2 were modified by laser heat treatment (LHT) conducted using the solid state fiber-laser, by ultrasonic impact treatment (UIT) and by the combined LHT + UIT process. The paper is focused on the establishing the correlation between the microstructure, hardness and wear resistance of the modified layers. XRD analysis and TEM observations show that the LHT process results in the formation of microstructure comprised submicronic ferrite/austenite grains, martensitic needles and secondary carbides while the combined LHT + UIT process leads to the formation ultra-fine grained structure (~ 80-250 nm) with grain boundaries fixed with fine secondary carbides (~ 20 nm), and some areas of martensitic feathers. The observed microstructural features and phase compositions are shown to affect the wear resistance of the AISI D2 steel surface measured both in quasi-static and dynamic conditions. The modified layers demonstrate almost double, triple and four times decrease in the wear losses in dynamic conditions with regard to the initial surface after the LHT, UIT, and combined LHT + UIT processes, respectively. Theoretical evaluations of the wear resistance Wâ 1th using the Archard expression correlate well with the experimental data Wâ 1exp, especially when the local plasticity characteristics δРdescribing the retained plasticity was taken into account.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 328, 15 November 2017, Pages 344-354
Journal: Surface and Coatings Technology - Volume 328, 15 November 2017, Pages 344-354
نویسندگان
D.A. Lesyk, S. Martinez, B.N. Mordyuk, V.V. Dzhemelinskyi, Ð. Lamikiz, G.I. Prokopenko, Yu.V. Milman, K.E. Grinkevych,