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Coatings
Special Issues
Hard Wear-Resistant Coatings for Cutting Tools
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Special Issue "Hard Wear-Resistant Coatings for Cutting Tools"

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Corrosion, Wear and Erosion".

Deadline for manuscript submissions: 30 March 2024 | Viewed by 3839

Special Issue Editor

Prof. Dr. Li Chen

E-Mail Website
Guest Editor
State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
Interests: hard coatings; material characterizations; physical vapor deposition

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your new research work to the Special Issue on "Hard Wear Resistant Coatings for Cutting Tools".

With the continuing industrial revolution, cutting tools are required to be environmentally benign and economically effective. During machining, the hardness and wear resistance of cutting tools significantly influence machining efficiency and precision. Coating is an effective approach to enable cutting tools to meet increasingly enhanced demands. The combination of tools and coatings is conducive to higher machining efficiency and precision, as well as better thermal properties and longer service life than the original tools. Considerable progress has been made to develop tribologically compatible coatings with exceptional wear resistance and low friction.

This Special Issue is dedicated to the recent experimental or theoretical achivements in the field of hard and wear-resistant coatings for cutting tools. New research papers, and reviews, are welcomed. In particular, topics of interest include but are not limited to the following:

  • Hard coatings;
  • Coated tools;
  • Cutting performance;
  • Tribological behaviour;
  • Fracture toughness;
  • Friction and wear;
  • Self-lubricating behavior;
  • Oxidation resistance;
  • Thermal stability;
  • Adhesion between coating and substrate;
  • Material characterization;
  • New analytical methods;
  • Novel deposition technology;
  • Modeling and characterization methods of surface;
  • Advanced surface modification techniques.

Prof. Dr. Li Chen
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hard coatings  
  • cutting tools
  • toughness
  • wear resistance
  • hardness
  • cutting performance
  • tribological properties

Published Papers (3 papers)

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Article
Tribological Properties and Cutting Performance of AlTiN Coatings with Various Geometric Structures
by
Bin Li
,
Yuxiang Xu
,
Guoliang Rao
,
Qimin Wang
,
Jun Zheng
,
Ruiyuan Zhu
and
Yubo Chen
Coatings 2023, 13(2), 402; https://doi.org/10.3390/coatings13020402 - 09 Feb 2023
Cited by 3 | Viewed by 972
Abstract
The development of advanced machining techniques requires high-performance tool coatings. To improve the wear resistance and cutting performance of AlTiN coatings, a structure optimization strategy involving bias control and a nano-multilayer architecture strategy is presented. The investigated AlTiN coatings were deposited by cathodic [...] Read more.
The development of advanced machining techniques requires high-performance tool coatings. To improve the wear resistance and cutting performance of AlTiN coatings, a structure optimization strategy involving bias control and a nano-multilayer architecture strategy is presented. The investigated AlTiN coatings were deposited by cathodic arc evaporation and studied with regard to phase structure, hardness, adhesion, and tribological properties by a combination of X-ray diffraction, nanoindentation, scratch, and ball-on-disk friction tests. A high bias potential (up to −120 V) with enhanced adatom mobility suppressed the formation of the wurtzite structure AlN in AlTiN. In addition, the epitaxial growth of Al0.67Ti0.33N on Al0.5Ti0.5N in the AlTiN nano-multilayer could also promote the single-phase structure. The hardness of AlTiN-based coatings with a dominated cubic structure was 3–4 GPa higher than conventional ones. In addition, the interlayer interfaces in the Al0.67Ti0.33N/Al0.5Ti0.5N multilayer could deflect the cracks and thus improve the fracture toughness. As a consequence, the Al0.67Ti0.33N/Al0.5Ti0.5N multilayer with enhanced mechanical properties obtained the lowest wear rate of 1.1 × 10−5 mm3/N·m and the longest cutting lifetime of 25 min during dry turning the SUS304 stainless steel. Full article
(This article belongs to the Special Issue Hard Wear-Resistant Coatings for Cutting Tools)
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Article
Structure, Mechanical and Thermal Properties of TiSiWN Coatings
by
Wen Hu
,
Jianwei Du
,
Zheren Liu
,
Xu Sun
and
Li Chen
Coatings 2023, 13(1), 119; https://doi.org/10.3390/coatings13010119 - 08 Jan 2023
Viewed by 1237
Abstract
Elemental alloying has been proven to be a valid approach for improving the performance of coatings and has attracted significant research attention. This study aims to explore the impact of W-addition on the structure, mechanical and thermal properties of arc evaporated TiSiN coatings. [...] Read more.
Elemental alloying has been proven to be a valid approach for improving the performance of coatings and has attracted significant research attention. This study aims to explore the impact of W-addition on the structure, mechanical and thermal properties of arc evaporated TiSiN coatings. Ti0.88Si0.12N coating presents a single-phase structure of fcc-(Ti, Si)N, while Ti0.88Si0.08W0.04N and Ti0.84Si0.09W0.07N coatings show a fcc-(Ti, Si, W)N and bcc-W dual-phase structure. As the W content increases, the surface quality of our coatings is obviously improved on account of the pronounced reduction in growth defects, including macroparticles and holes. Introduction of W slightly increases the hardness from 40.0 ± 0.5 GPa for Ti0.88Si0.12N to 41.6 ± 1.1 GPa for Ti0.88Si0.08W0.04N and 42.0 ± 1.0 GPa for Ti0.84Si0.09W0.07N. All our coatings possess a high thermal stability with their hardness values remaining above 38 GPa even after annealing at 1100 °C. Meanwhile, as a result of the suppressed anatase to rutile TiO2 transformation, alloying with W ameliorates the oxidation resistance of TiSiN coatings. After 750 °C oxidation for 10 h, the W-containing coatings only reveal oxide layers of ~301.5 (Ti0.88Si0.08W0.04N) and 279.2 nm (Ti0.84Si0.09W0.07N), whereas Ti0.88Si0.12N coating has already been entirely oxidized. Full article
(This article belongs to the Special Issue Hard Wear-Resistant Coatings for Cutting Tools)
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Article
Structural, Mechanical, and Thermal Properties of the TiAlTaN/TiAlBN Multilayer
by
Zheng Li
,
Li Chen
,
Jie Zhang
and
Xu Sun
Coatings 2022, 12(12), 1951; https://doi.org/10.3390/coatings12121951 - 12 Dec 2022
Cited by 1 | Viewed by 871
Abstract
A multilayer structure and incorporation of the fourth element are promising strategies to improve the properties of TiAlN coatings. In this study, the structural, mechanical, and thermal properties of the Ti0.34Al0.48Ta0.18N/Ti0.42Al0.54B0.04N [...] Read more.
A multilayer structure and incorporation of the fourth element are promising strategies to improve the properties of TiAlN coatings. In this study, the structural, mechanical, and thermal properties of the Ti0.34Al0.48Ta0.18N/Ti0.42Al0.54B0.04N multilayer, as well as the Ti0.34Al0.48Ta0.18N and Ti0.42Al0.54B0.04N monolithic coatings, were carefully researched. Coherent growth of the multilayer structure induces a single-phase cubic structure of the Ti0.34Al0.48Ta0.18N/Ti0.42Al0.54B0.04N multilayer, even though the Ti0.34Al0.48Ta0.18N and Ti0.42Al0.54B0.04N coatings have a single-phase cubic structure and a mixed cubic and wurtzite structure, respectively. The Ti0.34Al0.48Ta0.18N/Ti0.42Al0.54B0.04N multilayer reveals a higher hardness of 38.2 ± 0.9 GPa due to interfacial strengthening, corresponding to 32.4 ± 0.6 GPa of Ti0.34Al0.48Ta0.18N and 32.7 ± 0.9 GPa of Ti0.42Al0.54B0.04N. During annealing, our three kinds of coating demonstrate an age-hardening effect. The Ti0.34Al0.48Ta0.18N/Ti0.42Al0.54B0.04N multilayer presents a hardness peak of 40.0 ± 0.9 GPa at 1000 °C, whereas the Ti0.34Al0.48Ta0.18N and Ti0.34Al0.48Ta0.18N coatings show the hardness peaks of 37.1 ± 0.7 and 35.0 ± 0.6 GPa at 900 °C, respectively. Furthermore, the improved oxidation resistance is obtained by the Ti0.34Al0.48Ta0.18N/Ti0.42Al0.54B0.04N multilayer. Full article
(This article belongs to the Special Issue Hard Wear-Resistant Coatings for Cutting Tools)
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