سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

Indentation Size Scale Effect on Mechanical Properties of Cold SprayCoating

Publish Year: 1392
Type: Conference paper
Language: English
View: 977

This Paper With 8 Page And PDF Format Ready To Download

Export:

Link to this Paper:

Document National Code:

WMECH02_180

Index date: 12 July 2014

Indentation Size Scale Effect on Mechanical Properties of Cold SprayCoating abstract

For well over a hundred years, hardness testing has provided engineers a quick measure of the mechanical properties of a material or coating. However, the technique has also been fraught with potential artifacts, many of which are related to a phenomenon known as the indentationsize effect . Unlike bulk materials, experimental studies on the hardness measurements of cold spray coatings in different load regimes shows strong dependency on the indentation size in a manner different from the Nix–Gao model. In cold spray coating additional parameters such asporosity and cohesive strength between cold sprayed particles affect the hardness measurements. As a result the hardness loss was observed by increasing the indentation load. To interpret the experimental observation, a two dimensional model was developed taking into consideration the inter particle damage. Ductile damage initiation in combination with the linear damage evolution models has been used. The deviation of load-displacement curves in the material with inter particle defects in comparison to bulk material was studied to explain the mechanism involved in hardness loss. Furthermore, microstructural characterization before and after indentation, was used to examine the relationships between processing conditions, coating microstructure and mechanical behavior of coatings fabricated with cold spray process.

Indentation Size Scale Effect on Mechanical Properties of Cold SprayCoating Keywords:

Indentation Size Scale Effect on Mechanical Properties of Cold SprayCoating authors

A Moridi

PhD Student

M Guagliano

Professor, Politecnico di Milano - Department of Mechanical Engineering, Via G. La Masa,۱,۲۰۱۵۶, Milan, Italy

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
Gouldstone A, Chollacoop N, Dao M, Li J, Minor A, ...
Fischer-Cripps AC. N anoindentation , second edi. New York: Springer; ...
Nix WD, Gao H. (1998), Journal of the Mechanics and ...
Goldbaum D, Ajaja J, Chromik RR, Wong W, Yue S, ...
Moridi A, Hassani -Gangaraj SM, Guagliano M, Vezzu S. (2014), ...
Moridi A, Has sani-Gangaraj SM, Guagliano M. (2013), Applied Surface ...
Assadi H, Gartner F, Stoltenhoff T, Kreye H. (2003), Acta ...
Schmidt T, Gartner F, Assadi H, Kreye H. (2006), Acta ...
Bae G, Xiong Y, Kumar S, Kang K, Lee C. ...
Dao M, Chollacoop N, Van Vliet KJ, Venkatesh T a, ...
Lee H, Chen Y, Claisse A, Schuh CA. (2013), Experimental ...
Chollacoop N, Dao M, Suresh S. (2003), Acta Materialia 51, ...
Tai K, Dao M, Suresh S, Palazoglu A, Ortiz C. ...
ABAQUS 6.10-1. (2010), . ...
Nemat-Nasse. S, Guo W.G., Cheng J.Y. (1999), Acta Materialia 47, ...
Hooputra H, Gese H, Dell H, Werner H. (2004), Internationa ...
نمایش کامل مراجع