کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5007526 1461602 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of laser shock processing on fatigue life of 2205 duplex stainless steel notched specimens
ترجمه فارسی عنوان
اثر تراکم شکن لیزر بر روی عمر خستگی نمونه های بتونی 2205 دوبلکس از جنس استنلس استیل
کلمات کلیدی
پردازش شوک لیزری، آزمون خستگی، فولاد ضد زنگ دوبلکس، استرس باقی مانده، میکرو سختی، جهت نوردی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی
The effect laser shock processing (LSP) on high cycle fatigue behavior of 2205 duplex stainless steel (DSS) notched samples was investigated. The swept direction parallel (LSP 1) and perpendicular (LSP 2) to rolling were used in order to examine the sensitivity of LSP to manufacturing process since this steel present significantly anisotropy. The Nd:YAG pulsed laser operating at 10 Hz frequency and 1064 nm wavelength was utilized. The LSP configuration was the water jet mode without protective coating. Notched specimens 4 mm thick were treated on both sides, and then fatigue loading was applied with R = 0.1. The results showed that the LSP 2 condition induces higher compressive residual stresses as well as a higher fatigue life than the LSP 1 condition. By applying LSP 2 condition, an enhancement of fatigue life up to 402% is reported. In addition, the microhardness profiles showed different depths of hardening layer for each direction, according to the anisotropy observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 97, 1 December 2017, Pages 308-315
نویسندگان
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