Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 527, Issue 29-30, Pages 7585-7592Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2010.08.075
Keywords
Rapid Manufacturing (RM); Selective Laser Melting (SLM); Hardmetals; Microstructure; Hardness
Categories
Funding
- Alexander von Humboldt Foundation Germany
- Natural Science Foundation of Jiangsu Province [BK2009374]
- NUAA [NS2010156]
Ask authors/readers for more resources
Selective Laser Melting (SLM) of W-Ni-graphite powder mixture was performed to prepare in situ WC/Ni(2)W(4)C(M(6)C) cemented carbide based hardmetals. The WC phase was developed via a multi-laminated growth mechanism and it experienced block-shaped-triangle-elliptical morphological change on decreasing the linear energy density. The amount of the formed M(6)C increased and its structure changed from a granular form to a ring shape at a lower laser energy input. SLM-processed cemented carbide based hardmetals possessed a high densification level of 96.3% and a maximum microhardness of 1870.9 HV(0.1). The dominant metallurgical mechanisms behind the microstructural developments were also proposed. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available