Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 371, Issue 1-2, Pages 170-177Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2003.11.048
Keywords
direct laser sintering; metallic powder; liquid phase sintering; mechanical properties
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The Cu-based metal powder has been successfully sintered without protection and pre-heating. Bonding mechanisms and the influences of the liquid volume fraction of binder on the density and mechanical properties of direct laser-sintered parts have been investigated. It was found that with the increase in the amount of the binder in the powder mixture, the density of the sintered parts increases and the microstructure become denser. Mechanical properties in terms of tensile strength, impact toughness, and transverse rupture strength have also been studied, showing the increased mechanical properties with the increase in the amount of binder. However, at a high volume of binder, mechanical properties showed a decrease. The low mechanical properties may be caused by the high porosity. (C) 2003 Elsevier B.V. All rights reserved.
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