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Composite magnesium phosphate coatings for improved corrosion resistance of magnesium AZ31 alloy

Corrosion Science, ISSN: 0010-938X, Vol: 113, Page: 104-115
2016
  • 170
    Citations
  • 0
    Usage
  • 97
    Captures
  • 0
    Mentions
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    170
    • Citation Indexes
      170
  • Captures
    97

Article Description

Corrosion performance of magnesium phosphate composite coatings consisted of struvite (MgNH 4 PO 4 ·6H 2 O) and newberyite (MgHPO 4 ·3H 2 O) on magnesium AZ31 alloy obtained in a high concentrated NH 4 H 2 PO 4 phosphating bath at different pH ranges in 1 wt.% NaCl aqueous solution were analyzed using potentiodynamic polarization test, EIS analysis and immersion test. The test results revealed that the corrosion performance increased with increase in the coating bath pH which could be attributed to the uniform and dense magnesium phosphate coating with fewer defects and increase in the content of insoluble struvite phase.

Bibliographic Details

Jithu Jayaraj; A. Srinivasan; S. Ananthakumar; U. T.S. Pillai; S. Amruth Raj; Nanda Gopala Krishna Dhaipule; U. Kamachi Mudali

Elsevier BV

Chemistry; Chemical Engineering; Materials Science

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