Publication detail

Coating of Cr–V ledeburitic steel with CrN containing a small addition of Ag

JURČI, P. DLOUHÝ, I.

Czech title

Cr-N povlak obsahující malá množství Ag na Cr-V ledeburitické oceli

English title

Coating of Cr–V ledeburitic steel with CrN containing a small addition of Ag

Type

journal article - other

Language

en

Original abstract

Samples made from Vanadis 6 PM ledeburitic tool steel were surface machined, ground, and mirror polished. They were heat treated and coated with CrN with and without Ag addition by reactive magnetron sputtering. The CrN film grew in a typically columnar manner. A small addition of 3% Ag did not lead to alterations in the growth mechanism. The Ag addition in the CrN improved adhesion of the coating, which can be attributed to the capability of CrAgN coating to accommodate higher deformation energy before failure. The CrAgN coating exhibited superior tribological properties at intermediate temperatures. Flexural strength decreased slightly for the CrN- or CrAgN-coated material compared to uncoated steel.

Czech abstract

Vzorky z ledeburitické oceli Vanadis 6PM byly povrchově broušeny a leštěny do zrcadlového lesku. Po tepelném zpracování byla ocel za použití magnetronového naprašování povlakována CrN povlakem s přídavkem a bez přídavku Ag. Vrstva CrN byla standardně tvořena kolumnárními krystaly. Přídavek 3 % Ag nevedl ke změně mechanismu růstu vrstvy. Přídavek Ag v CrN vrstvě vedl ke zlepšení adhese povlaku, což bylo přisouzeno schopnosti povlaku akomodovat vyšší deformační práci předcházející lomu. CrAgN povlak vykazoval vynikající tribologické chování při zvýšených teplotách. V důsledku přítomnost stříbra klesla pevnost v ohybu poměrně nevýrazně.

English abstract

Samples made from Vanadis 6 PM ledeburitic tool steel were surface machined, ground, and mirror polished. They were heat treated and coated with CrN with and without Ag addition by reactive magnetron sputtering. The CrN film grew in a typically columnar manner. A small addition of 3% Ag did not lead to alterations in the growth mechanism. The Ag addition in the CrN improved adhesion of the coating, which can be attributed to the capability of CrAgN coating to accommodate higher deformation energy before failure. The CrAgN coating exhibited superior tribological properties at intermediate temperatures. Flexural strength decreased slightly for the CrN- or CrAgN-coated material compared to uncoated steel.

Keywords in Czech

Magnetronové naprašování, CrN povlak, Ag, ledeburitická ocel, vrypován zkouška, pevnost v ohybu

Keywords in English

Magnetron sputtering, Cr–N coating, Ag, Ledeburitic steel, Scratch test, Flexural strength

RIV year

2011

Released

22.06.2011

ISSN

0169-4332

Volume

257

Number

24

Pages from–to

10581–10589

Pages count

9

BIBTEX


@article{BUT90941,
  author="Petr {Jurči} and Ivo {Dlouhý},
  title="Coating of Cr–V ledeburitic steel with CrN containing a small addition of Ag",
  year="2011",
  volume="257",
  number="24",
  month="June",
  pages="10581--10589",
  issn="0169-4332"
}