A comparative research on mechanical properties of monolayer, gradient and multi-module coatings on CrN(C) base

• Autorzy: Mydłowska K. , Libralesso L. , Szparaga Ł. , Gilewicz A. , Ratajski J.

Identyfikatory

DOI

10.15199/28.2018.1.2

Warianty tytułu

PL

Badania właściwości mechanicznych jednowarstwowych, wielomodułowych oraz gradientowych powłok na bazie CrN(C)

• Języki publikacji: EN

Abstrakty

EN

Chromium has been used for decades for the production of relatively thick, hard, wear resistant coatings in a wide range of industries — including the automotive and aircraft industry. Whilst traditional hard chromium finished coatings have no known health hazards, the chemicals, used in the process of application, comprise hexavalent chromium compounds (Cr6+ ions) and chromium in this state is extremely toxic. Due to the European directive on chemicals (REACH), hard chromium coatings, produced from highly toxic and carcinogenic baths, must be replaced by “green” solutions. In certain applications, the coatings obtained by PVD method can be the alternative to hard chromium electroplating where superior wear resistance to that of hard chromium electroplate is required — especially if a thin coating is suitable. Among PVD coatings, the chrome nitride coatings have demonstrated to possess excellent wear resistance properties. In this article was presented a fragment of research on this subject, carried out as part of an international research project CORNET, whose aim was to develop technologies of anti-wear and anti-corrosion coatings as replacements for hard chromium and cadmium coatings for applications in the aerospace and automotive industries. In particular, the article contains a description of the investigation of the mechanical properties of monolayer, gradient and multi-module coatings on CrN(C) base deposited with use of the cathodic arc evaporation CAE-PVD method on nitrided steel 42CrMo4 and additionally in the case of gradient and multi-module coatings on substrates of HS6–5–2 steel. The investigation includes the adhesion analysis by scratch test and by the Rockwell C indentation test (VDI — Verein Deutscher Ingenieure indentation test) tribomechanical analysis by pin–on–disc, measurement of friction coefficient and nanoindentation tests.

PL

W związku z europejską dyrektywą dotyczącą chemikaliów (REACH) twarde powłoki chromowe, produkowane w toksycznych i rakotwórczych kąpielach, muszą być zastąpione przez rozwiązania „zielone”. W niektórych zastosowaniach, między innymi w przemyśle lotniczym, powłoki otrzymywane metodą PVD mogą być alternatywą dla powłok z twardego chromu. Wokół tego problemu zogniskowano badania, których fragment opisano w artykule. Zasadniczym celem tych badań było porównanie właściwości tribomechanicznych powłok jednowarstwowych CrN oraz wielomodułowych i gradientowych CrN/CrCN osadzanych na azotowanych podłożach ze stali 42CrMo4 oraz dodatkowo w przypadku powłok wielomodułowych i gradientowych na podłożach ze stali HS6–5–2.

Słowa kluczowe

EN

PVD coatings; mechanical properties; monolayer coatings; multi-module coating; gradient coatings

PL

stale typu HSLA; obróbka cieplno-plastyczna; struktura; właściwości mechaniczne

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 2018
• Tom: Vol. 39, nr 1
• Strony: 8--14
• Opis fizyczny: Bibliogr. 29 poz., fig., tab.

Twórcy

autor

Mydłowska K.

• Faculty of Technology and Education, Koszalin University of Technology, Koszalin

autor

Libralesso L.

• CRM asbl, Liege, Belgium

autor

Szparaga Ł.

• Faculty of Technology and Education, Koszalin University of Technology, Koszalin

autor

Gilewicz A.

• Faculty of Technology and Education, Koszalin University of Technology, Koszalin

autor

Ratajski J.

• Faculty of Technology and Education, Koszalin University of Technology, Koszalin

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).