Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 142, Issue 3, Pages 725-737Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0924-0136(03)00814-8
Keywords
laser surface melting; XRD; XPS; titanium alloy; composite
Ask authors/readers for more resources
Overlapping tracks were produced by laser processing using a powder SiC (similar to6 mum) preplacement technique which has been developed to modify the surface structure of a Ti-6Al-4V alloy. A continuous-wave CO2 laser was used for the processing which produced six overlapping tracks covering 14 turn across the surface of a 10 mm thick plate. Under spinning beam conditions, a surface alloyed/metal matrix composite (MMC) layer over 300 mum in depth was produced on the alloy. The surface contained a complex microstructure, but with no cracks and only two pores at the melt/HAZ interface. Using XRD and XPS analysis, it was shown that the solidified melt consisted of alpha'-Ti, Ti0.55C0.45 and Ti5Si3 phases, which vary with melt depth and with the particular group of overlapping tracks examined. Therefore, no new phases to those previously identified in single track laser processing experiments were found in this work. (C) 2003 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