Changes of the Magnetic Properties during Heat Treatment in AISI 304

  • Tatiana Oršulová Department of Material Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, Žilina 010 01, Slovakia
  • Peter Palček Department of Material Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, Žilina 010 01, Slovakia
  • Jozef Kúdelčík Department of Physics, Faculty of Electrical Engineering, University of Žilina, Univerzitná 8215/1, Žilina 010 01, Slovakia

Abstract

The aim of this study was to evaluate changes of the magnetic properties during heat treatment in austenitic stainless steel AISI 304. Investigated changes were caused by plastic deformation in material. Specific composition of alloying elements in austenitic stainless steels has got influence on their deformation behavior. Samples were heat treated before measurement of magnetic properties in different intervals of temperatures. The first series of measurements has shown, that it is necessary to make more precise analysis of temperature intervals in the second part of experiment. For verification of structural changes in material there was used hardness test Vickers method and observation by light optical microscope. There was proven that AISI 304 is slightly magnetic after cold forming, although in general it is considered as non-magnetic.

Keywords: stainless steel, austenite, martensite, magnetic properties
Published online
2018-05-09
How to Cite
Oršulová, T., Palček, P. and Kúdelčík, J. “Changes of the Magnetic Properties during Heat Treatment in AISI 304”, Periodica Polytechnica Transportation Engineering. doi: https://doi.org/10.3311/PPtr.12102.
Section
Articles