Bond strength between TiN coating and microstructural constituents of a high speed steel determined by first principle calculations
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In: Acta materialia, Vol. 222.2022, No. 1 January, 117439, 01.01.2022.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Bond strength between TiN coating and microstructural constituents of a high speed steel determined by first principle calculations
AU - Gsellmann, Matthias
AU - Scheiber, Daniel
AU - Klünsner, Thomas
AU - Zalesak, Jakub
AU - Zhang, Zaoli
AU - Leitner, Harald
AU - Mitterer, Christian
AU - Ressel, Gerald
AU - Romaner, Lorenz
N1 - Publisher Copyright: © 2021
PY - 2022/1/1
Y1 - 2022/1/1
N2 - The adhesion of protective hard coatings to the substrate is one of the most important parameters that influence the performance of metal cutting tools. By a combination of high-resolution transmission electron microscopy and first principles modelling we determine the interface adhesion between a TiN hard coating and microstructural constituents of a high speed steel on an atomic level for the first time. Based on experimentally observed orientation relationships, multiple structures are studied for each interface and both interface cohesion and resistance to sliding are evaluated for MC and M 6C carbides as well as the martensitic matrix to TiN coating. We find that TiN coatings have high adhesion to MC carbides, while lower adhesion is present for M 6C and the martensitic matrix. Close agreement with experimental measurements validates this approach and suggests new strategies for developing steels with increased coating adhesion.
AB - The adhesion of protective hard coatings to the substrate is one of the most important parameters that influence the performance of metal cutting tools. By a combination of high-resolution transmission electron microscopy and first principles modelling we determine the interface adhesion between a TiN hard coating and microstructural constituents of a high speed steel on an atomic level for the first time. Based on experimentally observed orientation relationships, multiple structures are studied for each interface and both interface cohesion and resistance to sliding are evaluated for MC and M 6C carbides as well as the martensitic matrix to TiN coating. We find that TiN coatings have high adhesion to MC carbides, while lower adhesion is present for M 6C and the martensitic matrix. Close agreement with experimental measurements validates this approach and suggests new strategies for developing steels with increased coating adhesion.
UR - http://www.scopus.com/inward/record.url?scp=85118779691&partnerID=8YFLogxK
U2 - 10.1016/j.actamat.2021.117439
DO - 10.1016/j.actamat.2021.117439
M3 - Article
VL - 222.2022
JO - Acta materialia
JF - Acta materialia
SN - 1359-6454
IS - 1 January
M1 - 117439
ER -
