کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
795180 1466758 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Residual stress during heat treatment of steel grinding balls
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Residual stress during heat treatment of steel grinding balls
چکیده انگلیسی

This work aimed to model the temperature distribution, phase transformation and residual stress induced during the heat treatment of grinding balls of 3 and 5 in. diameter. The temperature model considered factors such as the heating of the water and the formation of a steam layer that surrounds the balls at the start of the quenching. The model of the residual stress field considered: the temperature distribution, the force equilibrium equations and the constitutive thermo-elastic relationships, including the expansion due to the austenite–martensite transformation.A good agreement between the experimental and theoretical values for the temperature distribution was obtained with the differences at the end of the quenching being no higher than 0.5%. The experimental behavior of the balls in a mill simulator, as well as the residual stress measured by X-ray diffraction, agreed satisfactorily with the theoretical predictions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 208, Issues 1–3, 21 November 2008, Pages 450–456
نویسندگان
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