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Advances in Materials Science and Engineering
Volume 2017, Article ID 9324271, 7 pages
Research Article

Testing of Microalloyed Steel Quality under Creep Conditions for a New Intended Use

Institute of Materials, Faculty of Metallurgy, Technical University of Košice, Letná 9, 040 02 Košice, Slovakia

Correspondence should be addressed to Mária Mihaliková; ks.ekut@avokilahim.airam

Received 11 April 2017; Revised 8 June 2017; Accepted 14 June 2017; Published 18 July 2017

Academic Editor: Patrice Berthod

Copyright © 2017 Mária Mihaliková et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper deals with the testing of microalloyed steels H300LAD and H380LAD under creep conditions. To test the properties of these steels, tensile and creep tests were carried out in the temperature range of 200–500°C. Torn samples were subjected to microscopic and submicroscopic observations. Microalloyed steels were compared with the alloyed steels C16E and 16Mo3 bypasses used at the same temperatures. The results of the experiments highlighted the possibility of application of microalloyed steels in operations within the specified temperature range.