Influence of the shaping effect on hardness homogeneity by Vickers indentation analysis
نویسندگان
چکیده
Influence of the shaping effect on hardness homogeneity by Vickers indentation analysis B. Guillaume a,∗, F. Boschini a, A. Rulmont a, M. Ausloos b, R. Cloots a a Laboratoire de Chimie Inorganique Structurale, SUPRATECS, Department of Chemistry, Chemistry Inst. B6, University of Liège, Sart-Tilman, B-4000 Liège, Belgium b Physique Statistique et des Matériaux, SUPRATECS, Department of Physics, Physics Inst. B5, University of Liège, Sart-Tilman, B-4000 Liège, Belgium
منابع مشابه
Finite element analysis of elastic-plastic solids under Vickers indentation: surface deformation
Finite element modeling has been used to study the development of surface deformation during indentation with a Vickers indenter. A wide range of materials with different elastic modulus and yield stresses are examined. Results show that in a pyramidal indentation process, for a perfectly plastic material, sinking-in during loading can change to pile-up in unloading. This phenomenon depends on ...
متن کاملConventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests
We evaluate Vickers hardness and true instrumented indentation test (IIT) hardness of 24 metals over a wide range of mechanical properties using just IIT parameters by taking into account the real contact morphology beneath the Vickers indenter. Correlating the conventional Vickers hardness, indentation contact morphology, and IIT parameters for the 24 metals reveals relationships between conta...
متن کاملIndentation Hardness Measurements at Macro-, Micro-, and Nanoscale: A Critical Overview
The Brinell, Vickers, Meyer, Rockwell, Shore, IHRD, Knoop, Buchholz, and nanoindentation methods used to measure the indentation hardness of materials at different scales are compared, and main issues and misconceptions in the understanding of these methods are comprehensively reviewed and discussed. Basic equations and parameters employed to calculate hardness are clearly explained, and the di...
متن کاملStudy of the concept of representative strain and constraint factor introduced by Vickers indentation
The application of the concept of the representative strain is often used in the stress-strain curve determination from indentation test because it can significantly simplify the analysis of the indentation response. A new methodology for determining the representative strain for Vickers indentation is presented in this article. Following a procedure based on finite element simulations of inden...
متن کاملBrinell and Vickers Hardness Measurement Using Image Processing and Analysis Techniques
Mechanical hardness testing is fundamental in the evaluation of the mechanical properties of metallic materials due to the fact that the hardness values allow one to determine the wear resistance of the material involved, as well as the approximate values of its ductility, flow tension, among a number of other key characteristics. As a result, the main objective of the present work has been the...
متن کامل