BRINELL INDENTATION DIAMETER MEASUREMENT WITHOUT USING an OPTICAL MICROSCOPE

Year 2019, Volume: 20 , 36 - 40, 16.12.2019

Utku Kaya

https://doi.org/10.18038/estubtda.630526

Abstract

The Brinell
hardness test method has been in common use for over 100 years. The Brinell
test method provides hardness measurement near the deformed or cracked zone. In
this work, there is an approach to obtaining several railway steel samples'
hardness by using a spherical indenter without optical measurement. Spherical
indentation diameter is commonly effected by sink-in and pile-up effect that
influences optical measurement negatively. Because of that, the purposed
approach aims to obtain average hardness values by using indentation and
relaxation curves. 

Keywords

Brinell hardness, Indentation diameter, Spherical indenter, Pile-up, Sink-in

References

• Huber N, Tsakmakis Ch. A finite element analysis of the effect of hardening rules on the indentation test. Journal of Engineering Materials and Technology—Transactions of the ASME 1998;120:143–8.
• Hill R, Storakers B, Zdunek AB. A theoretical study of the Brinell hardness test. Proceedings of the Royal Society of London1989;423:301–30.
• Biwa S, Storakers B. An analysis of fully plastic Brinell indentation. Journal of Mechanics and Physics of Solids 1995;43:1303–33.
• Field JS, Swain MV. Determining the mechanical properties of small volumes of material from submicrometer spherical indentations. Journal of Materials Research 1995;10(1):101–12.
• Adler TA, Dogan ON. Damage by indentation and single impact of hard particles on a high chromium white cast iron. Wear 1997;203–204:257–66.
• Taljat B, Zacharia T, Kosel F. New analytical procedure to determine stress–strain curve from spherical indentation data. International Journal of Solids and Structures 1998;35:4411–
• ANDERSON DD, WARKENTIN AA, BAUER RR. Simulation of Deep Spherical Indentation Using Eulerian Finite Element Methods. ASME. J. Tribol.2011; 133(2):021401-021401-8. doi:10.1115/1.4003703.