Accession Number:

ADA551726

Title:

Optimized Deposition Parameters & Coating Properties of Cobalt Phosphorus Alloy Electroplating for Technology Insertion Risk Reduction

Descriptive Note:

Final rept. 2004-2009

Corporate Author:

NAVAL AIR SYSTEMS COMMAND JACKSONVILLE FL

Personal Author(s):

• Prado, Ruben
• Benfer, John
• Facchini, Diana
• Legg, Keith

Report Date:

2010-10-01

Pagination or Media Count:

51.0

Abstract:

Optimized plating deposition parameters were obtained using a Design of Experiment DOE approach. These parameters were validated through supplemental testing and found to be non-embrittling with improved fatigue and neutral salt fog corrosion performance as compared to hard chromium electroplate. The nCoP deposit did exhibit reduced hardness 560 VHN and reduced taber wear abrasion performance as compared to hard chromium electroplate. Producibility evaluations were performed utilizing a J52 Shaft section and a J52 Coupling component. Optimized plating parameters were successfully demonstrated on both ID OD areas. The above plated components were then finished machined at FRC-SE with no observable defects.

Descriptors:

• *ALLOYS
• *COATINGS
• *COBALT ALLOYS
• *DEPOSITION
• *PHOSPHORUS ALLOYS
• ABRASION
• CHROMIUM
• DEFECTS(MATERIALS)
• ELECTROPLATING
• ESTERS
• FATIGUE
• HARDNESS
• PLATING
• PRODUCTION
• REPLACEMENT
• TEST AND EVALUATION

Subject Categories:

• Inorganic Chemistry
• Coatings, Colorants and Finishes
• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE