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Welding Metallurgy Aerospace Magnesium alloys

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Technical Paper

prediction in new Metal Joining Processes
1960-01-01
600020
NEW WELDING processes are dropping costs while providing improvements in weld quality. This paper describes some of the more promising new developments in pressure and fusion welding and brazing. Included in the discussion are ultrasonic, high frequency resistance, foil seam, magnetic force, percussion, friction, and thermopressure welding and diffusion bonding. The description of adhesive bonding includes the development of glass or ceramic materials as structural adhesives.*
Technical Paper

Zn-Ni Plating as a Cadmium Alternative
2007-09-17
2007-01-3837
In a 2-year program sponsored by SJAC, an aqueous electroplating process using alkaline Zn-Ni with trivalent chromium post treatment is under evaluation for high strength steel for aircraft application as an alternative to cadmium. Commercial Zn-15%Ni rack/barrel plating solutions are basis for plating aircraft parts or fasteners. Brightener was reduced from the original formula to form porous plating that enables bake-out of hydrogen to avoid hydrogen embrittlement condition. Properties of the deposit, such as appearance, adhesion, un-scribed corrosion resistance, and galvanic corrosion resistance in contact with Al alloy, were evaluated. Coefficient of friction was compared with Cd plating by torque-tension measurements. Evaluation of the plating for scribed corrosion resistance, primer adhesion, etc. will continue in FY2007.
Standard

Zinc Phosphate Treatment Paint Base
2019-05-17
CURRENT
AMS2480J
This specification covers the requirements for producing a zinc phosphate coating on ferrous alloys and the properties of the coating.
Standard

Zinc Phosphate Treatment Paint Base
2023-09-21
WIP
AMS2480K
This specification covers the requirements for producing a zinc phosphate coating on ferrous alloys and the properties of the coating.
Standard

ZINC PLATING
1991-10-01
HISTORICAL
AMS2402F
This specification covers the engineering requirements for electrodepositton of zinc and the properties of the deposit.
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