Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Metrology and Measurement Systems

The Journal of Committee on Metrology and Scientific Instrumentation of Polish Academy of Sciences

4 Issues per year


IMPACT FACTOR 2016: 1.598

CiteScore 2016: 1.58

SCImago Journal Rank (SJR) 2016: 0.460
Source Normalized Impact per Paper (SNIP) 2016: 1.228

Open Access
Online
ISSN
2300-1941
See all formats and pricing
More options …
Volume 18, Issue 2 (Jan 2011)

Issues

The Influence of the Load on the Hardness

Jozef Petrík
  • Faculty of Metallurgy, Dept. of Integrated Management, Technical University of Košice, Letná 9, 04 001 Košice, Slovakia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Pavol Palfy
  • Faculty of Metallurgy, Dept. of Integrated Management, Technical University of Košice, Letná 9, 04 001 Košice, Slovakia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2011-06-09 | DOI: https://doi.org/10.2478/v10178-011-0005-5

The Influence of the Load on the Hardness

The objective of the submitted paper is to analyze the influence of the load on the calibration of micro-hardness and hardness testers. The results were validated by Measurement Systems Analysis (MSA), Analysis of Variance (ANOVA) and Z-score. The relationship between the load and micro-hardness in calibration of micro-hardness testers cannot be explained by Kick's Law (Meyer's index "n" is different from 2). The conditions of Kick's Law are satisfied at macro-hardness calibration, the values of "n" are close to 2, regardless of the applied load. The apparent micro-hardness increases with the increase of the load up to 30 g; the reverse indentation size effect (ISE) behavior is typical for this interval of the loads. The influence of the load on the measured micro-hardness is statistically significant for majority of calibrations.

Keywords: hardness; load; calibration; uncertainty; MSA

  • Swornowski, P. (2006). The influence of inaccuracy of calculating algorithms used in the CMMs on measurement results - final report. Metrology and Measurement Systems, 13(4), 433-446.Google Scholar

  • Veles, P. (1985). Mechanical properties and testing of metals. Alfa/SNTL, 307-320. (in Slovak)Google Scholar

  • Sangwal, K., Surowska, B., Błaziak, P. (2002). Analysis of the indentation size in the microhardness measurement of some cobalt-based alloys. Materials Chemistry and Physics, 77(2), 511-520.Google Scholar

  • ISO 10 012:2003 Measurement management systems - Requirements for measurement processes and measuring equipment.Google Scholar

  • STN EN ISO 6507-2:2005 Metallic materials. Vickers hardness test. Part 2: Verification and calibration of testing machines.Google Scholar

  • STN EN ISO 6507-1:2005 Metallic materials. Vickers hardness test. Part 1: Test method.Google Scholar

  • Adamczak, S. et al. (2011). Statistical validation of the method for measuring radius variations on the machine tool. Metrology and Measurement Systems, 18(1), 35-46.Web of ScienceGoogle Scholar

  • Measurement system s analysis (MSA). (2003). Reference manual. Third edition, 102-120.Google Scholar

  • Methodical guidelines for accreditation. (1998). Proficiency testing schemes. MSA 0113-98, 32-34. (in Slovak).Google Scholar

  • Tobolski, E. (2003). Uncertainty in Hardness testing. Advanced materials & processes, 161(5), 25-26.Google Scholar

  • EA-10/16 EA Guidelines on the Estimation of Uncertainty in Hardness Measurements. (2004). Annex Guideline to the evaluation of the uncertainty of the Brinell and the Vickers measuring method.Google Scholar

  • Dietrich, E. (2001) Es geht auch einfach. Messunsicherheit in Analogie zur Prüfmittelfähigkeit bestimmen. QZ Magazine, 46 (3), 264 - 265. (in German).Google Scholar

  • Fotowicz, P. (2010). Systematic effect as a part of the coverage interval. Metrology and Measurement Systems, 17 (3), 439-446.Google Scholar

  • Petrík, J., Palfy, P. (2010). The quality of Vickers hardness tester calibration. Journal of Engineering. Annals Faculty of Engineering Hunedoara, 8 (1), 63-66.Google Scholar

  • Gong, J., Wu, J., Guan, Zh. (1999). Examination of the Indentation Size Effect in Low-load Vickers Hardness Testing of Ceramics. Journal of the European Ceramic Society, 19, 2625 - 2631.CrossrefGoogle Scholar

  • Sangwal, K., Hordyjewicz, M., Surowska, B. (2002). Microindentation hardness of SrLaAlO4 and SrLaGaO4 single crystals. Journal of Optoelectronics and Advanced Materials, 4(4), 875-882.Google Scholar

About the article


Published Online: 2011-06-09

Published in Print: 2011-01-01


Citation Information: Metrology and Measurement Systems, ISSN (Print) 0860-8229, DOI: https://doi.org/10.2478/v10178-011-0005-5.

Export Citation

This content is open access.

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
S. Vorotilo, E.A. Levashov, V.V. Kurbatkina, D.Yu. Kovalev, and N.A. Kochetov
Journal of the European Ceramic Society, 2017
[2]
Jozef Petrík and Pavol Palfy
MAPAN, 2014, Volume 29, Number 1, Page 43

Comments (0)

Please log in or register to comment.
Log in