Kabushiki Kaisha Kobe Seiko Sho

Hidetoshi Nishimoto

Hiroshi Satoh

Yasuaki Sugizaki

Tatsuya Yasunaga

Keiji Ueda

Kazutoshi Shimogori

Takashi Yashiki

Koki Ikeda

Masao Toyama

Takenori Nakayama

Hirohiko Sakai

Shingo Nomura

Yasunori Wada

Junji Kawahuku

Shoji Miyake

Yoshinori Terada

Kenji Umei

Junji Kawafuku

A machine part comprises: a base part formed of a titanium alloy or an aluminum alloy and having a roughened surface of Ra 0.5 .mu.m or above and PPI.sub.50 or above; and a Ni--P electrodeposit layer formed over the surface of the base part by an electroplating process using a Ni--P plating bath containing a stress relaxing agent, and having a stress of 20 kgf/mm.sup.2 or below. The machine part has a small specific gravity, excellent seizure resistance, wear resistance and fatigue strength.

Machine part resistant to rolling friction

A corrosion resistant Ti based alloy comprising:

Corrosion resistant Ti alloy containing Cu, Si, and a platinum group

Corrosion resistant Ti-Cr-Ni alloy containing a platinum group metal

Zn-Mg alloy is plated by vapor deposition on the surface of metals. Since Zn and Mg are vapor-deposited as a vapor mixture of an optional ratio on the surface of metals, plated layers of excellent corrosion resistance, peeling resistance of coating film, formability, etc. can be formed. There is disclosed a method of forming uniform vapor mixtures of Zn and Mg, and vapor-depositing them on the surface of metals as the method forming the vapor-deposited layers.

Zn-Mg alloy vapor deposition plated metals of high corrosion resistance,

Provided herein is an Al-Cr alloy vapor deposited product having high corrosion resistance which can be used under a corrosive environment for a long period of time on account of the outstanding corrosion resistance and heat resistance of the Al-Cr alloy vapor deposited layer.

Al-Cr alloy vapor-deposited material

Growing community of inventors

Kobe, Japan

Hidetoshi Nishimoto