کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832970 908128 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal stress analysis of Wc–Co/Cr–Ni multilayer coatings on 316L steel substrate during cooling process
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Thermal stress analysis of Wc–Co/Cr–Ni multilayer coatings on 316L steel substrate during cooling process
چکیده انگلیسی

In this study, a thermal stress analysis was performed in WC–Co/Cr–Ni multilayer coatings deposited on 316L steel substrate during the cooling process from 1273 K to room temperature. Firstly, the cooling curve of this coating system was measured by a thermocouple, experimentally. Then, this curve was considered for numerical analysis. With this regard, a transient thermal analysis was carried out using finite element method (FEM) utilizing ANSYS software. Thermal residual stresses were calculated for all system and were compared for different nodes selected in terms of concentrated stress areas on the model. The compressive and tensile stresses occurred in WC–Co/Cr–Ni coatings and 316L substrate owing to the different thermal expansion coefficients in each material, respectively. Additionally, the cooling curves determined from experimental and numerical studies are very similar to each other and the differences between them can be neglected.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 30, Issue 3, March 2009, Pages 770–774
نویسندگان
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