US2020109474A1PendingUtilityA1

Magnesium-containing metal material provided with coating

Assignee: NIHON PARKERIZINGPriority: Jun 22, 2017Filed: Jun 20, 2018Published: Apr 9, 2020

Est. expiryJun 22, 2037(~10.9 yrs left)· nominal 20-yr term from priority

Inventors:Yukihiro Ueda Tetsuo Otsuki Takayuki Yorozu Ryoko Katsuraya Naosumi Kamiyama

C22C 23/00C23C 22/78C23C 22/22C23C 22/83C23C 22/57C23C 28/04C23C 28/048C23C 8/28C23C 22/08C23C 22/73C23C 28/046C23C 8/10

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Claims

Abstract

Provided is a magnesium-containing metal material that includes coatings having excellent corrosion resistance on a surface. Specifically, provided is a magnesium-containing metal material with coating, which is characterized by including: a magnesium hydroxide-containing first coating on a surface of a magnesium-containing metal material composed of magnesium or a magnesium alloy; a hydroxyapatite and/or hydroxyapatite carbonate-containing third coating over the first coating; and a dibasic calcium phosphate-containing second coating between the first coating and the third coating.

Claims

exact text as granted — not AI-modified

1 . A magnesium-containing metal material with coating, comprising:
 a magnesium hydroxide-containing first coating on a surface of a magnesium-containing metal material composed of magnesium or a magnesium alloy;   a hydroxyapatite and/or hydroxyapatite carbonate-containing third coating over the first coating; and   a dibasic calcium phosphate-containing second coating between the first coating and the third coating.   
     
     
         2 . The magnesium-containing metal material with coating according to  claim 1 , wherein the second coating is a coating containing monetite and/or brushite.

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