DEPENDENCE OF INDENTATION PROPERTIES OF ELECTROTECHNICAL STEEL ON TEMPERATURE AND GRAIN ORIENTATION

作者：Gavendova Petra^*; Ctvrtlik Radim; Kovac Frantisek; Pesek Ladislav; Petryshynets Ivan

来源：Chemicke Listy, 2012, 106: S413-S416.

• non-oriented electrotechnical steel
• high-temperature nanoindentation
• nanohardness measurement

P. Gavendova(a), R. Ctvrtlik(b), F. Kovac(a), L. Pesek(c), and I. Petryshynets(a) ((a) Institute of Materials Research, Slovak Academy of Sciences, Kosice, Slovakia, (b) Palacky University, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Joint laboratory of Optics of Palacky University and Institute of Physics of Academy of Sciences of the Czech Republic, Olomouc, Czech Republic, (c) Department of Materials Science, Technical University of Kosice, Faculty of Metallurgy, Kosice, Slovakia): Dependence of Indentation Properties of Electrotechnical Steel on Temperature and Grain Orientation The elevated temperature response of NO electrical steel was examined using a nanoindenter Nano Test NT 600 with tip and sample heating. Hardness was faound to decrease with increasing temperature in each of tested grain orientation. The similar situation occured in the case of elastic modulus. It was shown some diferences in values of hardness and indentation modulus between particular grain orientations. Conversely, the magnitude of the load drops/serrated flow in the load displacement curve was found to increase with temperature.

• 出版日期2012