Nanoindentation and wear properties of Ti and Ti-TiB composite materials produced by selective laser melting
Research output: Contribution to journal › Article › Research › peer-review
Authors
Organisational units
External Organisational units
- School of Chemical Engineering, The University of Queensland
- Edith Cowan University, Joondalup
- University of the Sunshine Coast
- Institute of Coastal Research
- Leibniz Institute for Solid State and Materials Research, Dresden
- Ural Federal University
- Erich Schmid Institute of Materials Science
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.
Details
| Original language | English |
|---|---|
| Pages (from-to) | 20-26 |
| Number of pages | 7 |
| Journal | Materials science and engineering: A, Structural materials: properties, microstructure and processing |
| Volume | 688 |
| Early online date | 31 Jan 2017 |
| DOIs | |
| Publication status | Published - Mar 2017 |
