Strength ranking for interfaces between a TiN hard coating and microstructural constituents of high speed steel determined by micromechanical testing
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In: Materials and Design, Vol. 204.2021, No. June, 109690, 31.03.2021.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Strength ranking for interfaces between a TiN hard coating and microstructural constituents of high speed steel determined by micromechanical testing
AU - Gsellmann, Matthias
AU - Klünsner, Thomas
AU - Mitterer, Christian
AU - Krobath, Martin
AU - Wurmshuber, Michael
AU - Leitner, Harald
AU - Ecker, Werner
AU - Marsoner, Stefan
AU - Maier-Kiener, Verena
AU - Kiener, Daniel
AU - Ressel, Gerald
N1 - Publisher Copyright: © 2021 The Author(s)
PY - 2021/3/31
Y1 - 2021/3/31
N2 - Knowledge about the adhesion of protective hard coatings on tool materials is of great importance to understand their failure mechanisms in metalworking. Until now, common techniques such as scratch and indentation tests are used to establish a qualitative ranking of a coating's adhesion on various substrate materials. Nevertheless, there is a lack of quantitative measures to describe the strength of the interfaces between individual microstructural constituents of substrate-coating composites. The current work investigates the interfacial strength and thus the adhesion of TiN deposited as a hard coating on an MC-type carbide, an M 6C-type carbide and on martensite being constituents of high speed steels. Tensile stresses were introduced at the interface between TiN and the individual microstructural constituents of a high speed steel via micromechanical testing of a novel MSC specimen within a scanning electron microscope. The tested MSC specimens were subsequently investigated in detail by scanning electron microscopy. Evaluation of the interface stress at fracture via finite element analysis yielded a ranking in interface strength and therefore coating adhesion in a sequence from high to low strength values from MC/TiN over M 6C/TiN to martensite/TiN.
AB - Knowledge about the adhesion of protective hard coatings on tool materials is of great importance to understand their failure mechanisms in metalworking. Until now, common techniques such as scratch and indentation tests are used to establish a qualitative ranking of a coating's adhesion on various substrate materials. Nevertheless, there is a lack of quantitative measures to describe the strength of the interfaces between individual microstructural constituents of substrate-coating composites. The current work investigates the interfacial strength and thus the adhesion of TiN deposited as a hard coating on an MC-type carbide, an M 6C-type carbide and on martensite being constituents of high speed steels. Tensile stresses were introduced at the interface between TiN and the individual microstructural constituents of a high speed steel via micromechanical testing of a novel MSC specimen within a scanning electron microscope. The tested MSC specimens were subsequently investigated in detail by scanning electron microscopy. Evaluation of the interface stress at fracture via finite element analysis yielded a ranking in interface strength and therefore coating adhesion in a sequence from high to low strength values from MC/TiN over M 6C/TiN to martensite/TiN.
UR - http://www.scopus.com/inward/record.url?scp=85103793603&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2021.109690
DO - 10.1016/j.matdes.2021.109690
M3 - Article
VL - 204.2021
JO - Materials and Design
JF - Materials and Design
SN - 0264-1275
IS - June
M1 - 109690
ER -
