Improving the mechanical and anti-wear properties of AlTiN coatings by the hybrid arc and sputtering depositionShow others and affiliations
2019 (English)In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 378, article id 125022Article in journal (Refereed) Published
Abstract [en]
Arc-evaporated AITiN coatings with remarkable adhesion and thermal stability are widely used in manufacturing. However, the large residual stress and surface roughness limit their high-level applications for advanced machining. In this study, a hybrid technique combining cathodic arc evaporation and magnetron sputtering was utilized to enhance the mechanical properties and wear resistance of AlxTi1-xN with x = similar to 0.65. The hybrid AIM coatings exhibited a nano-multilayer architecture with alternating arc-evaporated and magnetron sputtered constituents, which decreased their residual stress from -7.1 GPa to about -5.0 GPa. In addition, the hybrid AlTiN showed higher indentation toughness than the monolithic coatings. The hybrid AITiN coating with a target sputtering power of 7.0 kW showed excellent wear resistance at room and high temperature. At 800 degrees C, the hybrid coatings mainly showed abrasive and oxidation wear, while the monolithic AITiN coating showed abrasive/oxidation wear and brittle failure.
Place, publisher, year, edition, pages
ELSEVIER SCIENCE SA , 2019. Vol. 378, article id 125022
Keywords [en]
AlTiN; Hybrid deposition; Mechanical properties; Residual stress; Wear resistance
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:liu:diva-163065DOI: 10.1016/j.surfcoat.2019.125022ISI: 000503100800073OAI: oai:DiVA.org:liu-163065DiVA, id: diva2:1384224
Note
Funding Agencies|National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51875109, 51801032]; National Key Research and Development Program of China [SQ2017YFGH001672]; Natural Science Foundation of Guangdong Province, ChinaNational Natural Science Foundation of Guangdong Province [2018A030310546]
2020-01-092020-01-092020-01-09