Duplex stainless steel surface bay laser cladding
DOI:
https://doi.org/10.3989/revmetalm.2004.v40.i6.296Keywords:
Duplex steel, laser cladding, metallic powders, Ni alloys.Abstract
Laser cladding is one of the most promissing techniques to restore damaged surfaces and achieve properties similar to those of the base metal. In this work, duplex stainless steels have been cladded by a nickel alloy under different processing conditions. The influence of the beam speed and defocusing variables has been evaluated in the microstructure both of the cladding and heat affected zone, HAZ. These results have been correlated to mechanical properties by means of microhardness measurements from cladding area to base metal through the interface. This technique has shown to be very appropriate to obtain controlled mechanical properties as they are determined by the solidification microstructure, originated by the transfer of mass and heat in the system.
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