Title:
HIGHLY CORROSION-RESISTANT MAGNESIUM ALLOY MATERIAL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/069841
Kind Code:
A1
Abstract:
The present invention is a magnesium alloy material which is composed of a substrate that is formed of a magnesium alloy and a coating film that is formed on the substrate surface, and which is characterized in that: the coating film contains magnesium hydroxide and an Mg-Al system layered double hydroxide represented by formula below; the material structure of the magnesium alloy of the substrate is composed of a magnesium matrix and a compound that contains at least one solute element; and the average particle diameter of the compound is 4.0 μm or less. The magnesium alloy material according to the present invention enables the formation of a coating film that has high corrosion resistance improving effect in comparison to conventional magnesium alloy materials.
[Mg2+
1-xAl3+
x(OH)2][An-
x/n·yH2O]
Inventors:
ISHIZAKI TAKAHIRO (JP)
SERIZAWA AI (JP)
SERIZAWA AI (JP)
Application Number:
PCT/JP2018/036645
Publication Date:
April 11, 2019
Filing Date:
October 01, 2018
Export Citation:
Assignee:
SHIBAURA INST TECH (JP)
International Classes:
C22C23/02; C23C8/16; C23C8/08
Domestic Patent References:
| WO2011096294A1 | 2011-08-11 |
Foreign References:
| JP2014125639A | 2014-07-07 | |||
| JP2012082451A | 2012-04-26 | |||
| JP2015151565A | 2015-08-24 | |||
| JP2011122243A | 2011-06-23 |
Attorney, Agent or Firm:
TANAKA AND OKAZAKI (JP)
Download PDF:
Previous Patent: METAL-RESIN COMPOSITE, AND METHOD FOR PRODUCING METAL-RESIN COMPOSITE
Next Patent: TRANSMISSION BELT
Next Patent: TRANSMISSION BELT