کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10128771 1645147 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-temperature wear properties and microstructural characterization of 40CrNiMo structural steel treated by cryogenic laser peening
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
High-temperature wear properties and microstructural characterization of 40CrNiMo structural steel treated by cryogenic laser peening
چکیده انگلیسی
The purpose of this study was to explore the effects of Cryogenic Laser Peening (CLP) on the high-temperature wear properties and microstructural response of 40CrNiMo structural steel. The high-temperature wear characteristics and the microhardness in depth direction were measured, as well as the worn surface morphologies were observed by Scanning Electron Microscopy (SEM), while the microstructure was also characterized by Transmission Electron Microscopy (TEM) observation. The experimental results cleared that CLP could effectively increase the microhardness, as well as a large number of twins, higher-density of dislocation structures and ultra-fine grains were produced by CLP, leading to a remarkable decrease of wear mass loss and thus an improved high-temperature wear resistance. Moreover, the microscopic strengthening mechanism of CLP was also analyzed in detail.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 157, November 2018, Pages 320-323
نویسندگان
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