The use of surface modification techniques for the corrosion protection of aluminum and aluminum alloys

Book · Sun Dec 31 00:00:00 EST 1995

OSTI ID:203504

Natishan, P M; McCafferty, E; Donovon, E P; Hubler, G K ^[1]

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1. Naval Research Lab., Washington, DC (United States)

Surface modification techniques such as ion beam assisted deposition (IBAD) and radio frequency plasma enhanced chemical vapor deposition (PECVD) offer a means to produce surfaces with unique and improved properties. This paper reviews the advantages of the IBAD and PECVD processes and discusses the preparation and pitting corrosion behavior of IBAD modified aluminum surfaces and PECVD coatings on a 7075 aluminum alloy. Pitting potential values for the base materials and for the base materials with silicon nitride IBAD, tantalum oxide IBAD, or PECVD diamond-like carbon coatings were determined in deaerated 0.1M NaCl solutions. The thickness of the modified region ranged from 0.01 to 5.0 {micro}m. All three coatings improved the resistance to pit initiation.

• OSTI ID: 203504
• Report Number(s): CONF-950201-; ISBN 0-87339-317-1; TRN: 96:009598
• Resource Relation: Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Las Vegas, NV (United States), 12-16 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Advances in coatings technologies for corrosion and wear resistance coatings; Srivatsa, A.R. [ed.] [Jet Process Corp., New Haven, CT (United States)]; Clayton, C.R. [ed.] [State Univ. of New York, Stony Brook, NY (United States)]; Hirvonen, J.K. [ed.] [Army Materials Research Agency, Watertown, MA (United States). Materials Technology Lab.]; PB: 364 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
CORROSION PROTECTION
ALUMINIUM BASE ALLOYS
SILICON NITRIDES
ENERGY BEAM DEPOSITION
TANTALUM OXIDES
CARBON
CHEMICAL VAPOR DEPOSITION
RUTHERFORD SCATTERING
PHOTOELECTRON SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
RAMAN SPECTROSCOPY
ELECTROCHEMICAL CORROSION
SODIUM CHLORIDES
PITTING CORROSION
ELECTRIC POTENTIAL
EXPERIMENTAL DATA