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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a551726.pdf


Report Date : Oct 2010


Pagination or Media Count : 51


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