کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155900 | 1666366 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure and mechanical properties of friction stir welded ferrite-martensite DP700 steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the present work, friction stir welding technique was applied on 2â¯mm thick ferrite-martensite DP700 steel sheets at rotational speeds of 600, 800 and 1000â¯rpm. The microstructure and mechanical properties of the welds were evaluated. It was found that Zener-Hollomon parameter decreased with increasing rotational speed that leads to grain coarsening in the stir zone. It was also found that increment of rotational speed increased softening phenomenon in sub-critical heat affected zone. The results also showed that the presence of WC particles in the stir zone, which was due to the tool wear, as well as formation of a soft ferrite band degrade the tensile properties at rotational speed of 600â¯rpm while HAZ softening was responsible for reduction of strength and ductility in conditions of 800 and 1000â¯rpm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 737, 8 November 2018, Pages 213-222
Journal: Materials Science and Engineering: A - Volume 737, 8 November 2018, Pages 213-222
نویسندگان
Mahdi Mahmoudiniya, Amir Hossein Kokabi, Shahram Kheirandish, Leo A.I. Kestens,