Materials Science Forum, Vol.465-466, 207-212, 2004
Effect on explosive cladding of TITAN 12/SS 304 L plates under multiple conditions (Design matrix)
Joining of dissimilar metals has always attracted attention of researchers because of their wider applications in aerospace, defense and naval applications. Explosive cladding is one of the non-conventional diffusion bonding techniques, which offers strong and metallurgical bonds in dissimilar metal combinations. Attempts were made to explosively clad titanium (ASTM grade 1)-stainless steel (SS 304L grade) plates using granular nitroglycerine explosive (detonation velocity 2800 m/s). The flyer (titanium) and the parent (SS) plates were of 3.5 mm and 3.0 mm thickness, respectively. The experiments were conducted by adopting a 3 parameter-2 level design matrix and by varying the e/m. ratio (1.0 and 1.75), preset angle alpha (3degrees and 8degrees), and stand-off distance (5 mm and 10 mm). All the experiments were open air explosions. The micro structural changes, interfacial wavy configurations and modifications, and the effects of the parameters on the strength of the bond are discussed. Models have been developed correlating the parameters and the strength of the bonds.
Keywords:analysis of variance (ANOVA);correlation coefficient;explosive cladding;factorial technique;wavy interface geometry