Nanoindentation and wear properties of Ti and Ti-TiB composite materials produced by selective laser melting

Attar, H., Ehtemam-Haghighi, S., Kent, D., Okulov, I. V., Wendrock, H., Bӧnisch, M., Volegov, A. S., Calin, M., Eckert, J. and Dargusch, M. S. (2017) Nanoindentation and wear properties of Ti and Ti-TiB composite materials produced by selective laser melting. Materials Science and Engineering: A, 688 20-26. doi:10.1016/j.msea.2017.01.096


Author Attar, H.
Ehtemam-Haghighi, S.
Kent, D.
Okulov, I. V.
Wendrock, H.
Bӧnisch, M.
Volegov, A. S.
Calin, M.
Eckert, J.
Dargusch, M. S.
Title Nanoindentation and wear properties of Ti and Ti-TiB composite materials produced by selective laser melting
Journal name Materials Science and Engineering: A   Check publisher's open access policy
ISSN 0921-5093
1873-4936
Publication date 2017-03-14
Sub-type Article (original research)
DOI 10.1016/j.msea.2017.01.096
Open Access Status Not yet assessed
Volume 688
Start page 20
End page 26
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2018
Language eng
Formatted abstract
Ti and Ti-TiB composite materials were produced by selective laser melting (SLM). Ti showed an α΄ microstructure, whereas the Ti-TiB composite revealed a distribution of needle-like TiB particles across an α-Ti matrix. Hardness (H) and reduced elastic modulus (Er) were investigated by nanoindentation using loads of 2, 5 and 10 mN. The results showed higher H and Er values for the Ti-TiB than Ti due to the hardening and stiffening effects of the TiB reinforcements. On increasing the nanoindentation load, H and Er were decreased. Comparison of the nanoindentation results with those derived from conventional hardness and compression tests indicated that 5 mN is the most suitable nanoindentation load to assess the elastic modulus and hardness properties. The wear resistance of the samples was related to their corresponding H/Er and H3/Er2 ratios obtained by nanoindentation. These investigations showed that there is a high degree of consistency between the characterization using nanoindentation and the wear evaluation from conventional wear tests.
Keyword Mechanical property
Nanoindentation
Selective laser melting
Titanium material
Wear
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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