Journal
SCRIPTA MATERIALIA
Volume 96, Issue -, Pages 25-28Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2014.10.011
Keywords
Laser treatment; Powder consolidation; Metal matrix composites (MMCs); Nanocomposite; Selective laser melting (SLM)
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Funding
- National Natural Science Foundation of China [51322509]
- Outstanding Youth Foundation of Jiangsu Province of China [BK20130035]
- Program for New Century Excellent Talents in University [NCET-13-0854]
- Science and Technology Support Program, Jiangsu Provincial Department of Science and Technology of China [BE2014009-2]
- Program for Distinguished Talents of Six Domains in Jiangsu Province of China [2013-XCL-028]
- Fundamental Research Funds for the Central Universities [NE2013103]
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A novel ring-structured nanoscale TiC reinforcement with a regular distribution was tailored along the grain boundaries of the matrix by selective laser melting (SLM) to produce TiC/AlSi10 Mg nanocomposite parts. Relative to the SLM-processed unreinforced AlSi10 Mg part, the TiC/AlSi10 Mg nanocomposite part with the novel reinforcement architecture exhibited elevated microhardness (188.3 HV0.1) and tensile strength (486 MPa) without a reduction in elongation (10.9%), due to the combined effects of grain refinement and grain boundary strengthening caused by the ring-structured nanoscale TiC reinforcement. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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