Surface-modified, WC-based cemented carbide member, hard-coated, WC-based cemented carbide member, and their production methods

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United States of America Patent

PATENT NO 9492872
APP PUB NO 20140170432A1
SERIAL NO

14236510

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Abstract

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The ion bombardment of Cr, etc. onto a surface of a WC-based cemented carbide substrate in a nitrogen-based gas forms a modified phase having a bcc structure on the substrate surface, and a hard coating containing at least Cr formed thereon has high adhesion to the substrate by the modified phase.

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Patent Owner(s)

Patent OwnerAddress
HITACHI TOOL ENGINEERING LTDTOKYO 105-0023

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Fumihiro Narita, JP 1 1
Isaka, Masakazu Yasu-shi, JP 6 11

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