22 February 2013 Corrosion performance of laser-welded austenitic-ferritic connections
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In order to reduce the material costs of white-goods made of stainless steels, tailored constructions with unequally alloyed stainless steels shall be used. For that purpose nickel-alloyed austenitic stainless steels are supposed to be limited to zones with demanding needs for corrosions resistance, whereas nickel-free ferritic stainless steels provide an attractive cost-performance ratio for the remaining components of a system. Particularly the present article discusses the corrosion performance of austenitic-ferritic connections, welded with high-power disc lasers at accelerated feed rates, as a function of the shielding gas composition and the surface condition.
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M. Weigl, M. Weigl, M. Schmidt, M. Schmidt, "Corrosion performance of laser-welded austenitic-ferritic connections", Proc. SPIE 8603, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II, 86030P (22 February 2013); doi: 10.1117/12.2006022; https://doi.org/10.1117/12.2006022

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