Mitsubishi Heavy Industries Limited

Masanobu Misaki

Toyoaki Yasui

Yoshihiro Wada

Katsuyasu Hananaka

Yozo Nakamura

Yukio Kodama

Toshirou Kobayashi

A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even 1000&#xb0; C. or higher and also having very high wear resistance.

High wear resistant hard film

A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even at 1000&#xb0; C. or higher and also having very high wear resistance.

Growing community of inventors

Shiga-ken, Japan

Masanobu Misaki