Diisocyanate type effects on flexibility and coating performance of UV-curable hard coatings based on tetrafunctional urethane acrylates
Sign Up to like & getrecommendations! Published in 2018 at "Polymer Bulletin"
DOI: 10.1007/s00289-018-2363-5
Abstract: Tetrafunctional urethane acrylates based on different types of diisocyanates were synthesized and were then used to prepare a series of five UV-cured hard coatings on polycarbonate (PC) substrate. The coating syrups consisted of the urethane… read more here.
Keywords: coating performance; cured hard; hard coatings; urethane acrylates ... See more keywords
Structure, Deformation, and Fracture of Hard Coatings During Sliding Friction
Sign Up to like & getrecommendations! Published in 2019 at "Russian Physics Journal"
DOI: 10.1007/s11182-019-01856-z
Abstract: The paper considers the current state of the problem of choosing methods for surface hardening of metallic materials aimed at ensuring advanced tribological characteristics of friction pairs. Several technological processes of surface engineering are analyzed… read more here.
Keywords: fracture hard; deformation fracture; friction; hard coatings ... See more keywords
Effect of plasma-assisted laser pretreatment of hard coatings surface on the physical and chemical bonding between PVD soft and hard coatings and its resulting properties
Sign Up to like & getrecommendations! Published in 2020 at "Applied Surface Science"
DOI: 10.1016/j.apsusc.2020.145342
Abstract: Abstract This research reveals for the first time, how different surface pretreatments (including mechanical polishing, plasma etching, femtosecond laser texturing, and plasma-assisted femtosecond laser texturing) on the PVD hard coatings impact the physical and chemical… read more here.
Keywords: soft hard; plasma assisted; assisted laser; hard coatings ... See more keywords
Evaluation of fracture toughness of VN hard coatings: Effect of preferred orientation
Sign Up to like & getrecommendations! Published in 2022 at "Materials Chemistry and Physics"
DOI: 10.1016/j.matchemphys.2021.125253
Abstract: Abstract The objectives of this study were to evaluate the fracture toughness (Gc) of vanadium nitride (VN) hard coatings using internal energy-induced cracking (IEIC) method, and investigate the effect of preferred orientation on the fracture… read more here.
Keywords: fracture; hard coatings; effect; texture ... See more keywords
A novel approach for the prediction of deformation and fracture in hard coatings : Comparison of numerical modeling and nanoindentation tests
Sign Up to like & getrecommendations! Published in 2018 at "Mechanics of Materials"
DOI: 10.1016/j.mechmat.2017.11.006
Abstract: Abstract The mechanical behavior of coating systems is studied by means of a novel numerical modeling approach. The damage and fracture evolution within the coating system are modeled employing cohesive zone (CZ) regions in addition… read more here.
Keywords: nanoindentation; fracture; hard coatings; numerical modeling ... See more keywords
Wear resistance evaluation of hard-coatings for sheet blanking die
Sign Up to like & getrecommendations! Published in 2018 at "Procedia Manufacturing"
DOI: 10.1016/j.promfg.2018.07.282
Abstract: Abstract Stamping of advanced high strength steel (AHSS) sheet blanks lead to elevated level of wear, surface quality issues and consequently production interruptions. In order to address wear-oriented problems in stamping dies several countermeasures have… read more here.
Keywords: resistance evaluation; wear resistance; hard coatings; sheet ... See more keywords
Ab initio-guided development of super-hard Mo–Al–Cr–N coatings
Sign Up to like & getrecommendations! Published in 2017 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2017.06.052
Abstract: Abstract The ab initio-guided adjustment in N 2 -partial pressure during reactive magnetron sputtering allowed the preparation of single-phase cubic-structured Mo 1 − x − y Al x Cr y N z coatings with Al-contents up… read more here.
Keywords: initio guided; guided development; hard coatings; super hard ... See more keywords
Elastic modulus and damping of coatings based on microscopic defects
Sign Up to like & getrecommendations! Published in 2019 at "Surface Engineering"
DOI: 10.1080/02670844.2018.1512234
Abstract: ABSTRACT In this study, the influence of microscopic defects on the elastic modulus and damping of hard coatings was examined by finite element (FE) analysis. We present a method based on image processing and FE… read more here.
Keywords: hard coatings; elastic modulus; microscopic defects; modulus damping ... See more keywords
Durability of nanolayer Ti–Al–O–N hard coatings under simulated polycarbonate melt processing conditions
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/ac2e31
Abstract: To protect forming tools and components from abrasion, adhesion and corrosion, the application of thin hard coatings by physical vapor deposition is state-of-the-art. The use of a hybrid coating technology, consisting of high power pulse… read more here.
Keywords: melt processing; durability; polycarbonate melt; hard coatings ... See more keywords
Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15217750
Abstract: In tribological applications, the degradation of alloy nitride coatings is an issue of increasing concern. The drawbacks of monolayer hard coatings can be overcome using a multilayer coating system. In this study, single-layer TiAlNbN and… read more here.
Keywords: multilayer; hard coatings; tribological performance; tialnbn ... See more keywords