Photo of Lina Rogström

Lina Rogström

Associate Professor, Docent


My research focuses on hard, wear resistant coatings used for example by the tooling industry. Many tools for metal machining are covered with a thin layer (1-10 µm) of a hard material that increases the lifetime of the tool substantially. During metal machining, the tool is exposed to both high temperatures and pressures and the tool surface is worn when hard particles in the the chip slides across the surface. Coatings with high temperature stability and wear resistance are required to enhance the cutting performance and increase the cutting speed while reducing the need for cooling fluids.

To find materials that have a high wear resistance and that can be used at high temperatures an increased knowledge of the material behavior of the tool during use is needed. I use a combination of several experimental techniques to study the coating properties under conditions similar to the conditions the tool experiences in a metal machining operation. In addition, I use high-energy x-ray techniques to study the behavior of the tool in real time during machining.



Sanjay Kumar Nayak, Tun-Wei Hsu, Robert Boyd, Jens Gibmeier, Norbert Schell, Jens Birch, Lina Rogström, Magnus Odén (2024) Dynamic evolution of internal stress, grain growth, and crystallographic texture in arc-evaporated AlTiN thin films using in-situ synchrotron x-ray diffraction Acta Materialia, Vol. 272, Article 119899 Continue to DOI
Janella Salamania, Florian Bock, L. J. S. Johnson, Ferenc Tasnadi, K. M. Calamba Kwick, Alireza Farhadizadeh, Igor Abrikosov, Lina Rogström, Magnus Odén (2024) High temperature decomposition and age hardening of single-phase wurtzite Ti1−xAlxN thin films grown by cathodic arc deposition Physical Review Materials, Vol. 8, Article 013602 Continue to DOI
Maiara Moreno, Jon Martin Andersson, Jens Eriksson, Per Alm, K. Hedström, Rachid M'Saoubi, Isabella Citlalli Schramm, Norbert Schell, Mats P. Johansson-Jöesaar, Magnus Odén, Lina Rogström (2024) Strain and phase evolution in TiAlN coatings during high-speed metal cutting: An in operando high-energy x-ray diffraction study Acta Materialia, Vol. 263, Article 119538 Continue to DOI


Lina Rogström, Maiara Moreno, J. M. Andersson, M. P. Johansson-Jöesaar, Magnus Odén, K. Klementiev, Lars-Åke Näslund, Martin Magnuson (2023) Structural changes in Ti1-xAlxN coatings during turning: A XANES and EXAFS study of worn tools Applied Surface Science, Vol. 612, Article 155907 Continue to DOI
Naureen Ghafoor, Samira Dorri, Justinas Palisaitis, Lina Rogström, Babak Bakhit, Grzegorz Greczynski, Lars Hultman, Jens Birch (2023) Phase separation paths in metastable Zr1-xAlxN monolithic layers compared to multilayers with TiN: Growth versus annealing temperatures Materialia, Vol. 28, Article 101758 Continue to DOI