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Theoretical study on nanoindentation hardness measurement of a particle embedded in a matrix.
- Source :
-
Philosophical Magazine . May2015, Vol. 95 Issue 14, p1573-1586. 14p. - Publication Year :
- 2015
-
Abstract
- The finite element method was used to simulate indentation tests on a particle embedded in a matrix, to investigate the influence of the properties of the particle and the matrix, and the indentation depth on the measured hardness. The particle’s work-hardening exponent and the mismatch in particle and matrix yield strength have a significant influence on the measured hardness. A particle-dominated indentation depth was identified, within which the measured nanoindentation hardness agrees very well with the true hardness of the particle material. Numerical results from the simulations of a wide range of material properties determined that the measured hardness is within 5% difference of the particle’s true hardness when the indentation depth is less than 13.5% of the particle’s radius. The results can be used in practice as a guideline to measure the hardness of a particle embedded in a matrix and provides the theoretical basis to develop a particle-embedded method to measure the hardness of individual particles. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 14786435
- Volume :
- 95
- Issue :
- 14
- Database :
- Academic Search Index
- Journal :
- Philosophical Magazine
- Publication Type :
- Academic Journal
- Accession number :
- 102701535
- Full Text :
- https://doi.org/10.1080/14786435.2015.1040097