کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1575087 1514735 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Workhardening and the microstructural characteristics of shot- and laser-peened austenitic stainless steel
ترجمه فارسی عنوان
سختی کاری و ویژگی های ریز ساختار فولاد ضد زنگ آستنیتی شات و لیزر پوشیده شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی

The mechanical properties of shot- and laser-peened austenitic stainless steels, AISI316, were evaluated via Vickers hardness tests, and the correlation between workhardening and microstructural characteristics were discussed. Dislocation density, which is a microstructural feature, was determined via X-ray line profile analysis. Martensite was generated only by the shot-peening process. A linear relationship is observed between the hardness and the square root of the dislocation density in spite of the martensite formation on the shot-peened specimen. Therefore, the hardness is increased only by workhardening and is not affected by the martensite. We also clarified that a compressive residual stress greater than the original yield strength of the bare material can be induced because of the increase in yield strength caused by workhardening due to dislocation density increase with the peening process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 608, 1 July 2014, Pages 21–24
نویسندگان
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