Extrusion and intrusion evolution in cyclically strained cast superalloy Inconel 738LC using confocal laser scanning microscope and AFM

0354459 - ÚFM 2011 RIV GB eng J - Journal Article
Obrtlík, Karel - Juliš, M. - Man, Jiří - Podrábský, T. - Polák, Jaroslav
Extrusion and intrusion evolution in cyclically strained cast superalloy Inconel 738LC using confocal laser scanning microscope and AFM.
Journal of Physics: Conference Series. Roč. 241, - (2010), Art. No. 012054. ISSN 1742-6588. E-ISSN 1742-6596.
[ICSMA-15 (15th International Conference on the Strength of Materials). Dresden, 16.08.2009-21.08.2009]
R&D Projects: GA AV ČR 1QS200410502; GA ČR GA106/07/1507
Institutional research plan: CEZ:AV0Z20410507
Keywords : fatigue * persistent slip marking * Inconel 738LC
Subject RIV: JL - Materials Fatigue, Friction Mechanics
http://iopscience.iop.org/1742-6596/240/1/012054

Surface relief within persistent slip markings (PSMs) was studied using confocal scanning laser microscopy (CSLM) and atomic force microscopy (AFM) in cast nickel base superalloy Inconel 738LC cyclically strained in strain control at room temperature. Extrusion and intrusion topography and kinetics are documented. The dependence of extrusion height on the number of cycles is obtained. Two regimes of extrusion growth are identified. Average intrusion growth rate is assessed.
Permanent Link: http://hdl.handle.net/11104/0193456