Surface analytical examinations of welded nickel alloys by XPS, SNMS and SEM/EDX |
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| Authors: | G Pajonk H -D Steffens B Reznik H Bubert H Jenett |
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| Institution: | (1) Lehrstuhl für Werkstofftechnologie, Universität Dortmund, Otto-Hahn-Str. 6, D-44227 Dortmund, Federal Republic of Germany;(2) Institut für Spektrochemie und angewandte Spektroskopie (ISAS), Bunsen-Kirchhoff-Str. 11, D-44139 Dortmund, Federal Republic of Germany |
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| Abstract: | Tarnish layers are formed in the heat affected zone during the welding of steels and nickel based alloys. They commonly consist of oxides of the alloying elements. The corrosion behaviour of welded components is generally influenced by the thickness and composition of the oxide films. In the following the corrosion behaviour of annealed samples cut from NiMo28 and NiMo16Cr16Ti is investigated, correlating XPS, SNMS and SEM/EDX data to their pitting corrosion potentials.Dedicated to Professor Dr. rer. nat. Dr. h.c. Hubertus Nickel on the occasion of his 65th birthday |
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| Keywords: | welding nickel alloys tarnish layer surface analytics |
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