Highly corrosion-resistant amorphous alloy

• US 4,880,482 A
• Filed: 04/19/1988
• Issued: 11/14/1989
• Est. Priority Date: 04/28/1987
• Status: Expired due to Fees

• Current Assignee: Koji Hashimoto, Mitsui Engineering & Shipbuilding Company Limited (Mitsui E&S Holdings Co., Ltd.)
• Original Assignee: Koji Hashimoto, Mitsui Engineering & Shipbuilding Company Limited (Mitsui E&S Holdings Co., Ltd.)
• Inventors: Hashimoto, Koji, Miura, Kimikado, Kawashima, Asahi, Asami, Katsuhiko
• Primary Examiner(s): Rutledge, L. Dewayne
• Assistant Examiner(s): Wyszomierski, George
• Application Number:
  US07/183,553
• Time in Patent Office: 574 Days
• Field of Search: 148/403, 420/417, 420/423, 420/425, 420/426, 420/427, 420/492, 420/495, 420/587
• US Class Current: 148/403
• CPC Class Codes: C22C 45/001 with Cu as the major constituent

Abstract

A highly corrosion-resistant amorphous Cu alloys with at least one element selected from the group of Ta and Nb and other Cu-Ta alloys with at least one element selected from the group of Nb, Ti and Zr, wherein the total content of alloying elements other than Cu ranges from 15 to 85 at %.

Claims

1. A highly corrosion-resistant amorphous alloy consisting of 15 to 85 at% of at least one element selected from the group consisting of Ta and Nb, and the balance being substantially Cu.

2. A highly corrosion-resistant amorphous alloy consisting of 15 to 85 at% in the total of at least 1 at% of Ta and at least one element selected from the group consisting of Ti and Zr, and the balance being substantially Cu.

3. A highly corrosion-resistant amorphous alloy consisting of 15 to 85 at% in the total of at least one element selected from the group consisting of Ti and Zr and at least 1 at% of the sum of Ta and Nb, and the balance being substantially Cu.