Thermally induced morphology changes of wire arc sprayed copper and corrosion-resistant steel (316L)

21st Chemnitz Seminar on Materials Engineering – 21. Werkstofftechnisches Kolloquium

Winkler, R.^1 ; Saborowski, E.^1 ; Paczkowski, G.^1 ; Lampke, T.^1

Materials and Surface Engineering Group, Institute of Materials Science and Engineering, Chemnitz University of Technology, Chemnitz

D-09125, Germany^1

关键词: Corrosion-resistant steel;    Electrical discharge machining;    Heat-treatment effects;    Mechanical and thermal properties;    Morphological features;    Reference specimens;    Temperature dependent;    Three point bending;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/480/1/012010/pdf
DOI  :  10.1088/1757-899X/480/1/012010

来源: IOP

【 摘 要 】

This contribution deals with the determination of the mechanical and thermal properties of thermally sprayed materials. To this end, a comprehensive characterization of copper (Cu 98.7) and corrosion-resistant steel (316L) is carried out by temperature-dependent tensile, three-point bending and caloric tests within a temperature range from 293 K up to 1173 K. For this purpose, thick coatings were manufactured by wire arc spraying. The resulting volume was further processed by electrical discharge machining into suitable test samples. Reference specimens from the corresponding solid materials were also tested for evaluating the morphological features of the coatings. During the calorimetric examinations, the thermally applied materials were exposed to temperatures of up to 1173 K. As a result, permanent property changes could be observed. To investigate these heat treatment effects, metallographic preparations and XRD analyses were performed. Based on the results, conclusions on the morphology of the thermally applied materials could be drawn.