کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10669734 | 1008785 | 2014 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Role of interface curvature on stress distribution under indentation for ZrN/Zr multilayer coating
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Role of interface curvature on stress distribution under indentation for ZrN/Zr multilayer coating Role of interface curvature on stress distribution under indentation for ZrN/Zr multilayer coating](/preview/png/10669734.png)
چکیده انگلیسی
Contact damage in curved interface nano-layered metal/nitride (150 (ZrN)/10 (Zr) nm) multilayer is investigated in order to understand the role of interface morphology on contact damage under indentation. A finite element method (FEM) model was formulated with different wavelengths of 1000Â nm, 500Â nm, 250Â nm and common height of 50Â nm, which gives insight on the effect of different curvature on stress field generated under indentation. Elastic-plastic properties were assigned to the metal layer and substrate while the nitride layer was assigned perfectly elastic properties. Curved interface multilayers show delamination along the metal/nitride interface and vertical cracks emanating from the ends of the delamination. FEM revealed the presence of tensile stress normal to the interface even under the contact, along with tensile radial stresses, both present at the valley part of the curve, which leads to vertical cracks associated with interfacial delamination. Stress enhancement was seen to be relatively insensitive to curvature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 571, Part 2, 28 November 2014, Pages 283-289
Journal: Thin Solid Films - Volume 571, Part 2, 28 November 2014, Pages 283-289
نویسندگان
Nisha Verma, Vikram Jayaram,