Details

Autor(en) / Beteiligte

• Grenadyorov, Alexander
• Oskirko, Vladimir
• Zakharov, Alexander
• Oskomov, Konstantin
• Rabotkin, Sergey
• Semenov, Vyacheslav
• Solovyev, Andrey
• Shmakov, Alexander

Titel

Properties of TiAlN Coatings Obtained by Dual-HiPIMS with Short Pulses

Ist Teil von

• Materials, 2023-02, Vol.16 (4), p.1348

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• The paper focuses on the dual high-power impulse magnetron sputtering of TiAlN coatings using short pulses of high power delivered to the target. The surface morphology, elemental composition, phase composition, hardness, wear resistance, and adhesive strength of TiAlN coatings with different Al contents were investigated on WC-Co substrates. The heat resistance of the TiAlN coating was determined with synchrotron X-ray diffraction. The hardness of the TiAlN coating with a low Al content ranged from 17 to 30 GPa, and its wear rate varied between 1.8∙10 and 4.9∙10 mm ·N ·m depending on the substrate bias voltage. The HF1-HF2 adhesion strength of the TiAlN coatings was evaluated with the Daimler-Benz Rockwell C test. The hardness and wear rate of the Ti Al N coating were 26.5 GPa and 5.2∙10 mm ·N ·m , respectively. The annealing process at 700 °C considerably worsened the mechanical properties of the Ti Al N coating, in contrast to the Ti Al N coating, which manifested a high oxidation resistance at annealing temperatures of 940-950 °C.