Fabrication of functionally graded materials (FGMs) by laser metal deposition (LMD) has the potential to offer solutions to key engineering problems over the traditional metalworking techniques. But the issues that need to be addressed while building FGMs are intermixing in the layers and cracking due to the residual stresses. This paper is to present the study of the effect of process parameters (laser power and travel speed) on the degree of dilution between the substrate (or, previous layer) and powder material for few metallurgical systems.
S. R. Pulugurtha et al., "Functionally Graded Materials by Laser Metal Deposition (preprint),", Mar 2010.
Materials Science and Engineering
Mechanical and Aerospace Engineering
Air Force Research Laboratory
Keywords and Phrases
LMD; FGMs; Intermixing; Cracking; Dilution
01 Mar 2010