Selective laser melting of Iron based alloys

Project description
This order consist of several paragraphs; all the references have to be organized according to the “EndNote” program:
1) the first paragraph explain about additive manufacturing, its advantages, future. and then explain selective laser melting as one of those additive manufacturing process; explain their characteristics, major process, common problems.
2) the second paragraph, shows the feasibility of producing iron-based alloys parts by selective laser melting, and then made a brief literature survey of the selective laser melting of iron-based alloys such as pure iron or steel. Covers what people did in brief, also say the challenges and problems reported there such as porosity.
3) the third paragraph, cover the effect of heat treatment on the densification, microstructure and properties of the materials produced by additive manufacturing/ selective laser melting. you should say something like reduction in porosity, improvement of properties, etc. i.e. the challenges written in the second paragraph can be improved using heat treatments.
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Added on 25.12.2014 15:41
The link below is useful to see previous articles on the selective laser melting (SLM) of steel and Iron:
http://www.sendspace.com/filegroup/m9iCN7OMMbiyjEpE%2Bg8x%2B2%2BPAKK9IysXYuWlSnxGYio0mXoV8g1xOrfsnA3JeDOyO