Protective surface coating for magnesium alloy material
AssigneeKing Fahd University of Petroleum and Minerals
InventorsViswanathan S. SAJI, Nasirudeen OGUNLAKIN, A. Madhan KUMAR
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Abstract
A magnesium alloy material includes a bulk portion, and a surface oxide layer formed on the bulk portion. The surface oxide layer includes magnesium oxide, hexagonal boron nitride nanosheets, nanoclay and stannate. The bulk portion includes based on a total weight of the bulk portion, 91.0 percent by weight (wt. %) to 97.5 wt. % of magnesium (Mg), 2.0 wt. % to 4.0 wt. % of aluminium (Al), 0 wt. % to 0.1 wt. % of copper (Cu), 0 wt. % to 0.01 wt. % of iron (Fe), 0.01 wt. % to 2.0 wt. % of manganese (Mn), 0 wt. % to 0.01 wt. % of nickel (Ni), 0 wt. % to 0.5 wt. % of silicon (Si) and 0.3 wt. % to 2.0 wt. % of zinc (Zn).
Claims20
A magnesium alloy material, comprising:
- a bulk portion;
- and
- a surface oxide layer formed on the bulk portion and comprising magnesium oxide, hexagonal boron nitride nanosheets, nanoclay and stannate,
- wherein the bulk portion comprises, based on a total weight of the bulk portion:
- 91.
- -
- 97.5
- wt
- .
- %
-
- of
-
- Mg
- ;
- 2.
- -
- 4.
- wt
- .
- %
-
- of
-
- Al
- ;
- 0
- -
- 0.1
- wt
- .
- %
-
- of
-
- Cu
- ;
- 0
- -
- 0.01
- wt
- .
- %
-
- of
-
- Fe
- ;
- 0.01
- -
- 2.
- wt
- .
- %
-
- of
-
- Mn
- ;
- 0
- -
- 0.01
- wt
- .
- %
-
- of
-
- Ni
- ;
- 0
- -
- 0.5
- wt
- .
- %
-
- of
-
- Si
- ;
- and
- 0.3
- -
- 2.
- wt
- .
- %
-
- of
-
- Zn
- .
Dependencies are inferred from the claim text.