HARD COATING AND HARD COATING-COVERED MEMBER

Title:

HARD COATING AND HARD COATING-COVERED MEMBER

Document Type and Number:

WIPO Patent Application WO/2017/037955

Kind Code:

A1

Abstract:

A hard coating 24 coated on the surface of a tool base material 30 is configured so as to have a total film thickness of 0.5-20 µm and has alternately laminated therein, by physical vapor deposition, an A layer 34 and a nanolayer-alternated layer 40 having a B layer 36 and a C layer 38 alternately laminated therein at nano-order thicknesses. The A layer 34 has a thickness of 50-1,000 nm and is an AlCr nitride having a compositional formula of [Al1-UCrU]N and an atomic ratio U of 0.20-0.80. The B layer 36 has a thickness of 1-100 nm and is a TiAl nitride having a compositional formula [Ti1-WAlW]N and an atomic ratio W of 0.30-0.85. The C layer 38 has a thickness of 1-100 nm and is a TiSi nitride having a compositional formula [Ti1-YSiY]N and an atomic ratio Y of 0.05-0.45. The nanolayer-alternated layer 40 has a thickness of 50-1,000 nm.

Inventors:

SAKURAI MASATOSHI (JP)
WANG MEI (JP)
SUGITA HIROAKI (JP)

Application Number:

PCT/JP2015/075270

Publication Date:

March 09, 2017

Filing Date:

September 04, 2015

Export Citation:

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Assignee:

OSG CORP (JP)

International Classes:

B23B27/14; C23C14/06; B23B51/00; B23C5/16

Foreign References:

JP2011167794A	2011-09-01
JP2010207916A	2010-09-24
US20150232978A1	2015-08-20
JP2013516331A	2013-05-13

Other References: