Accession Number : ADA523926


Title :   Functionally Graded Materials by Laser Metal Deposition (PREPRINT)


Descriptive Note : Technical paper preprint


Corporate Author : MISSOURI UNIV OF SCIENCE AND TECHNOLOGY ROLLA


Personal Author(s) : Pulugurtha, Syamala R ; Newkirk, Joseph ; Liou, Frank ; Chou, Hsin-Nan


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a523926.pdf


Report Date : Mar 2010


Pagination or Media Count : 33


Abstract : 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.


Descriptors :   *CRACKING(FRACTURING) , *LASER APPLICATIONS , *MATERIAL FORMING , *DEPOSITION , METALLURGY , DILUTION , FABRICATION


Subject Categories : Fabrication Metallurgy


Distribution Statement : APPROVED FOR PUBLIC RELEASE