Steel product plated with al-si alloy by vacuum deposition and having high corrosion resistance and production thereof

Abstract

Abstract PURPOSE:To obtain the titled steel product having superior corrosion resistance, adhesion and formability by forming an Al-Si alloy plating layer having a specified compsn. and quality on steel by vacuum deposition. CONSTITUTION:Al and Si are separately evaporated at <=10<-2>Torr degree of vacuum to form an Al-Si alloy plating layer having a desired compsn. contg. 1-50% Si on steel by vacuum deposition. The plating layer does not contain brittle Fe-Al intermetallic compds. such as Fe2Al5 and the thickness is >=0.1mum. An underlayer of pure Al having >=0.01mum thickness may be previously formed on the steel by plating as required.

Inventors

• 👤 Kazutoshi Shimogoori
• 👤 Hiroshi Sato
• 👤 Masao Toyama
• 👤 Hidetoshi Nishimoto
• 👤 Tsugumoto Ikeda
• 👤 Jiyunji Kawafuku

Bibliographic Details