An investigation has been made of the laser surface alloying of titanium using a continuous feed of aluminium powder. By means of a continuous wave CO2 laser operating at 1·8 kW power, with a beam diameter of 3 mm, ranges of traverse speed (from 3 to 20 mm s−1) and aluminium powder feed rate (from 0·03 to 0·11 g s−1) were used to produce a series of alloyed zones with aluminium contents in the range ∼20–80 at.-%. Conditions for obtaining reasonable homogeneity and reproducibility of composition were determined.
MST/1353
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