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Wear behavior of Ti6Al4V biomedical alloys processed by selective laser melting, hot pressing and conventional casting
- Source :
- Transactions of Nonferrous Metals Society of China. 27:829-838
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- The aim of this work was to study the influence of the processing route on the microstructural constituents, hardness and tribological (wear and friction) behavior of Ti6Al4V biomedical alloy. In this sense, three different processing routes were studied: conventional casting, hot pressing and selective laser melting. A comprehensive metallurgical, mechanical and tribological characterization was performed by X-ray diffraction analysis, Vickers hardness tests and reciprocating ball-on-plate wear tests of Ti6Al4V/Al 2 O 3 sliding pairs. The results showed a great influence of the processing route on the microstructural constituents and consequent differences on hardness and wear performance. The highest hardness and wear resistance were obtained for Ti6Al4V alloy produced by selective laser melting, due to a markedly different cooling rate that leads to significantly different microstructure when compared to hot pressing and casting. This study assesses and confirms that selective laser melting is potential to produce customized Ti6Al4V implants with improved wear performance.
- Subjects :
- Materials science
Metallurgy
Alloy
Metals and Alloys
Titanium alloy
02 engineering and technology
Tribology
engineering.material
021001 nanoscience & nanotechnology
Geotechnical Engineering and Engineering Geology
Condensed Matter Physics
Microstructure
Hot pressing
020303 mechanical engineering & transports
0203 mechanical engineering
Casting (metalworking)
Vickers hardness test
Materials Chemistry
engineering
Selective laser melting
0210 nano-technology
Subjects
Details
- ISSN :
- 10036326
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Transactions of Nonferrous Metals Society of China
- Accession number :
- edsair.doi...........553fc786bf006b41a42517367b33f55b