Background and activities

I am Professor 2 at the institute, and employed in Equinor.

My competence area covers steel for onshore and offshore applications in the energy sector (oil, gas and renewables). My core competence is within materials charcterization, an din particular the use on EBSD in SEM.  

I teach the course TMT4242 Steel Offshore.  

In 2009 I was the winner of the Cook/Ablett Award for published work of particular merit in the field of metals for the article “SEM/EBSD based in-situ studies of deformation-induced phase transformations in supermartensitic stainless steels”. The article was published in Materials Science and Technology 2008 vol. 24 no. 1. 

Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications

Part of book/report

  • Hjeltereie, Isabella Juul; Akselsen, Odd Magne; Karlsen, Morten; Hjelen, Jarle. (2015) Characterization of Non-metallic Inclusions in Ferritic Weld Metals for Arctic Applications. Proceedings of the twenty-fifth International Ocean and Polar Engineering Conference - ISOPE 2015.
  • Jahrsengene, Gøril; Wenn, Maia; Karlsen, Morten; Westermann, Ida; Akselsen, Odd Magne; Hjelen, Jarle. (2015) EBSD Quantification of Retained Austenite in 9% Ni Steel Related to Thermal Treatments. Proceedings of the twenty-fifth International Ocean and Polar Engineering Conference - ISOPE 2015.
  • Kildahl, Pernille; Karlsen, Morten; Aursand, Mats; Hjelen, Jarle. (2014) Martensite Formation in Austenite Related to Deformation Twins in Adjacent Ferrite Grains in Duplex Stainless Steel. IMC 18 International Microscopy Congress 2014 Proceedings.
  • Hansen, Kristoffer Werner; Sætran, Truls Gruben; Karlsen, Morten; Nilsen, Tor Arild; Dall, Wilhelm; Hjelen, Jarle. (2012) Phase Transformation Study of Artic Steels by EBSD during In Situ Heating and Gas Quenching. Proceedings of the Twenty-second (2012) International Offshore and Polar Engineering Conference.
  • Mohseni, Peyman; Solberg, Jan Ketil; Karlsen, Morten; Akselsen, Odd Magne; Østby, Erling. (2012) Determination of Crystallographic facet orientations on fracture surfaces of an Arctic steel by using EBSD. Proceedings of the Twenty-second (2012) International Offshore and Polar Engineering Conference.
  • Enstad, A. J.; Karlsen, Morten; Astad, S. P.; Hjelen, Jarle; Solberg, Jan Ketil; Akselsen, Odd Magne; Østby, Erling. (2011) EBSD Characterization of Arctic Steel during in situ Heating. Proceedings of the Twenty-First (2011) International Offshore and Polar Engineering Conference.
  • Pedersen, J.H.; Astad, S.P.; Karlsen, Morten; Hjelen, Jarle; Solberg, Jan Ketil; Akselsen, Odd Magne; Østby, Erling. (2011) In situ EBSD Investigation of Arctic Steel at Sub-zero Temperatures. Proceedings of the Twenty-First (2011) International Offshore and Polar Engineering Conference.
  • Astad, Svein Prestrud; Bjering, Olav Kigen; Karlsen, Morten; Solberg, Jan Ketil; Hjelen, Jarle; Akselsen, Odd Magne; Østby, Erling. (2010) EBSD Measurements Combined with Optical Microscopy to Quantify Complex Microstructures in Steels. IMC17 International Microscopy Congress 2010 Proceedings.