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

Hooyar Attar, S. Ehtemam-Haghighi, D. Kent, I. V. Okulov, H. Wendrock, Matthias Bönisch, A. S. Volegov, Mariana Calin, Jürgen Eckert, M.S. Dargusch

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

167 Zitate (Scopus)


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.
Seiten (von - bis)20-26
FachzeitschriftMaterials science and engineering: A, Structural materials: properties, microstructure and processing
Frühes Online-Datum31 Jan. 2017
PublikationsstatusVeröffentlicht - März 2017

Dieses zitieren