Fabrication of functionally graded TiC/Ti composites by Laser Engineered Net Shaping

Directed Energy Deposition Processes

“…Read reference [4] related to thin-wall structures made using DED. What are the main differences between modeling thin wall and bulky structures?…”

Influence of scanning speed on the microhardness property of additive manufactured titanium alloy

“…Also, LMD can be used to repair high valued component parts that are prohibitive to be repaired and discarded in the past (Ploude, 2003;Bergan, 2012) and can be used to make part with functionally graded materials (Liu and Dupont, 2003). Lots of research has appeared in the literature in the last decades on the influence of processing parameters on the evolving properties of Ti6Al4V alloy using LMD (Wu et al 2004;Griffith et al 2000;Srivastava et al 2001;Kelly and Kampe, 2004a;Brandl et al 2011;Kelly and Kampe, 2004b;Gharbi et al 2013;Schwender et al 2001;Mok et al 2008;Mahamood et al 2014b andKobryn et al 2000).…”

Laser melting functionally graded composition of Waspaloy® and Zirconia powders

“…Whether fabrication using the SLM process improves the performance of the component and avoids premature failure can only be determined after further advanced testing and analysis. Tables Table 1 Waspaloy ® Nominal Weight Composition in percent [30] Table 2 Partially stabilized ceramic Zirconia with 7-9% yttria weight composition [31] Table 3 Volume compositions of material Table 4 Optimized processing parameters for processing Waspaloy ® Figure Legends …”

“…Liu et al also used the LENS process to fabricate functionally graded Titanium Carbide and Titanium (TiC/Ti) parts. The researchers successfully processed these compositions of material to produce functionally graded TiC/Ti crack free parts [30]. Another laser based SFF process known as Selective Laser Sintering (SLS) also uses a laser to melt powders, however the material is processed from a pre-layed powder bed rather then by powder injection.…”