# US 5,348,591 A · High-strength amorphous magnesium alloy

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- Number: US 5,348,591 A
- Document ID: US5348591A
- Status: Granted
- Kind: A
- Application number: 07/937,602
- Filed: 1992-09-02
- Granted: 1994-09-20
- Earliest claimed: 1991-09-06
- Assignees: Tsuyoshi Masumoto; Toyota Jidosha Kabushiki Kaisha; Yoshida Kogyo K.K.; Teikoku Piston Ring Co., Ltd.
- Inventors: Tsuyoshi Masumoto; Akihisa Inoue; Akira Kato; Toshisuke Shibata; Nobuyuki Nishiyama
- Web page: https://patentgrep.com/patent/US5348591A

## CPC

- C22C 23/00: Alloys based on magnesium
- C22C: ALLOYS (treatment of alloys C21D, C22F)

## Abstract

An amorphous magnesium alloy has a composition of Mg.sub.a M.sub.b X.sub.c (M is Zn and/or Ga, X is La, Ce, Mm (misch metal), Y, Nd, Pr, Sm and Gd), a is from 65 to 96.5 atomic %, b is from 3 to 30 atomic %, and c is from 0.2 to 8 atomic %). The magnesium alloy has a high specific strength and does not embrittle at room temperature.

## Claims

### Claim 1

A high-strength amorphous magnesium alloy, comprising Mg.sub.d M.sub.e X.sub.F T.sub.g wherein M is at least one element selected from the group consisting of Zn and Ga, X is at least one element selected from a group consisting of La, Ce, Y, Nd, Pr, Sm and Gd, T is at least one element selected from a group consisting of Ag, Zr, Ti and Hf, d is from 65 to 96.5 atomic %, e is from 2 to 30 atomic %, f is from 0.2 to 8 atomic %, and g is from 0.5 to 10 atomic %, and has at least 50% amorphous phase.

### Claim 2 (depends on 1)

A high-strength amorphous magnesium alloy according to claim 1, whose structure consists of said amorphous phase and hcp magnesium particles which are dispersed in a matrix consisting of said amorphous phase.

### Claim 3 (depends on 2)

A high-strength amorphous magnesium alloy according to claim 2, wherein said hcp particles are form 1 to 100 nm in size.