Processing of Al-12Si-TNM composites by selective laser melting and evaluation of compressive and wear properties

Prashanth, Konda G., Scudino, Sergio, Chaubey, Anil K., Loeber, Lukas, Wang, Pei, Attar, Hooyar, Schimansky, Frank P., Pyczak, Florian and Eckert, Juergen (2016) Processing of Al-12Si-TNM composites by selective laser melting and evaluation of compressive and wear properties. Journal of Materials Research, 31 1: 55-65. doi:10.1557/jmr.2015.326


Author Prashanth, Konda G.
Scudino, Sergio
Chaubey, Anil K.
Loeber, Lukas
Wang, Pei
Attar, Hooyar
Schimansky, Frank P.
Pyczak, Florian
Eckert, Juergen
Title Processing of Al-12Si-TNM composites by selective laser melting and evaluation of compressive and wear properties
Journal name Journal of Materials Research   Check publisher's open access policy
ISSN 2044-5326
0884-2914
Publication date 2016-01-01
Year available 2016
Sub-type Article (original research)
DOI 10.1557/jmr.2015.326
Open Access Status Not yet assessed
Volume 31
Issue 1
Start page 55
End page 65
Total pages 11
Place of publication New York, United States
Publisher Cambridge University Press
Language eng
Formatted abstract
Al–12Si (80 vol%)–Ti52.4Al42.2Nb4.4Mo0.9B0.06 (at.%) (TNM) composites were successfully produced by the selective laser melting (SLM). Detailed structural and microstructural analysis shows the formation of the Al6MoTi intermetallic phase due to the reaction of the TNM reinforcement with the Al–12Si matrix during SLM. Compression tests reveal that the composites exhibit significantly improved properties (∼140 and ∼160 MPa higher yield and ultimate compressive strengths, respectively) compared with the Al–12Si matrix. However, the samples break at ∼6% total strain under compression, thus showing a reduced plasticity of the composites. Sliding wear tests were carried out for both the Al–12Si matrix and the Al–12Si–TNM composites. The composites perform better under sliding wear conditions and the wear rate increases with increasing loads. At high loads, the wear takes place at three different rates and the wear rate decreases with increasing experiment duration.
Keyword Materials Science, Multidisciplinary
Materials Science
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 24 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 16 Jun 2017, 08:19:31 EST by Anthony Yeates on behalf of Learning and Research Services (UQ Library)