Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30451
Title: Microstructure and mechanical properties of selective laser melted magnesium
Authors: Ng, CC
Savalani, MM 
Lau, ML
Man, HC 
Keywords: Hardness
Magnesium
Mechanical properties
Microstructure
Selective laser melting
Issue Date: 2011
Publisher: North-Holland
Source: Applied surface science, 2011, v. 257, no. 17, p. 7447-7454 How to cite?
Journal: Applied surface science 
Abstract: The effects of laser processing parameters on the microstructure and mechanical properties of selective laser-melted magnesium were investigated. The results show that the microstructure characteristics of the laser-melted samples are dependent on the grain size of SLM magnesium. The grains in the molten zone coarsen as the laser energy density increases. In addition, the average hardness values of the molten zone decreases significantly with an increase of the laser energy densities and then decreased slowly at a relatively high laser energy density irrespective of mode of irradiation. The hardness value was obtained from 0.59 to 0.95 GPa and corresponding elastic modulus ranging from 27 to 33 GPa. The present selective laser-melted magnesium parts are promising for biomedical applications since the mechanical properties are more closely matched with human bone than other metallic biomaterials.
URI: http://hdl.handle.net/10397/30451
ISSN: 0169-4332
EISSN: 1873-5584
DOI: 10.1016/j.apsusc.2011.03.004
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