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1. (WO2015125898) HARD COATING FILM AND METHOD OF FORMING SAME

Pub. No.:    WO/2015/125898    International Application No.:    PCT/JP2015/054694
Publication Date: Aug 27, 2015 International Filing Date: Feb 19, 2015
IPC: C23C 14/06
B23B 27/14
B32B 15/01
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
株式会社神戸製鋼所
Inventors: NII Hiroaki
二井 裕瑛
YAMAMOTO Kenji
山本 兼司
Title: HARD COATING FILM AND METHOD OF FORMING SAME
Abstract:
The present invention relates to a hard coating film that is formed on a substrate, that is provided with a layer (A) of which the composition is [Ti(BCN)] and a layer (B) of which the composition is [TiAl(CN)], [AlCr(CN)], [TiCrAlSi(CN)], or [TiSi(CN)], and that is characterized in that: a foundation layer comprising the layer (B) is formed on the substrate; an adhesion-reinforcing layer in which the layer (A) and the layer (B) are stacked repeatedly in an alternating manner is formed on the foundation layer; the thickness of the layer (A) increases compared to the foundation layer (2) side as the thickness of the adhesion-reinforcing layer increases; and the maximum thickness of the layer (A) is 20-50 nm. The hard coating film is formed on the substrate surface of a jig tool or the like, has high coating film hardness, and exhibits excellent adhesion and wear resistance during cutting and the like.