Effect of coating time on corrosion behavior of electroless nickel-phosphorus coated powder metallurgy iron specimens
Abstract
Powder metallurgy iron specimens with porosities in the range 0% to 2% were electroless coated with nickel-phosphorus alloy from baths containing sodium hypophosphite (NaH{sub 2}PO{sub 2}{center_dot}H{sub 2}O). The effect of coating time on thickness and phosphorus content of the deposit was analyzed. The free corrosion potentials and corrosion rates of the coated specimens were obtained by the Tafel extrapolation method in 1.0 M hydrochloric acid (HCl) solution. Corrosion rates of the coated specimens after heat treatment also were studied. The observed corrosion characteristics were explained by the mixed-potential theory.
- Authors:
-
- Indian Inst. of Tech., Kanpur (India). Dept. of Materials and Metallurgical Engineering
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 103957
- Resource Type:
- Journal Article
- Journal Name:
- Corrosion
- Additional Journal Information:
- Journal Volume: 51; Journal Issue: 8; Other Information: PBD: Aug 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; IRON; ELECTRODEPOSITED COATINGS; PROTECTIVE COATINGS; CORROSION; NICKEL ALLOYS; ELECTRODEPOSITION; PHOSPHORUS ADDITIONS; TIME DEPENDENCE; CHEMICAL COMPOSITION; POROSITY
Citation Formats
Singh, D, Balasubramaniam, R, and Dube, R K. Effect of coating time on corrosion behavior of electroless nickel-phosphorus coated powder metallurgy iron specimens. United States: N. p., 1995.
Web. doi:10.5006/1.3293617.
Singh, D, Balasubramaniam, R, & Dube, R K. Effect of coating time on corrosion behavior of electroless nickel-phosphorus coated powder metallurgy iron specimens. United States. https://doi.org/10.5006/1.3293617
Singh, D, Balasubramaniam, R, and Dube, R K. 1995.
"Effect of coating time on corrosion behavior of electroless nickel-phosphorus coated powder metallurgy iron specimens". United States. https://doi.org/10.5006/1.3293617.
@article{osti_103957,
title = {Effect of coating time on corrosion behavior of electroless nickel-phosphorus coated powder metallurgy iron specimens},
author = {Singh, D and Balasubramaniam, R and Dube, R K},
abstractNote = {Powder metallurgy iron specimens with porosities in the range 0% to 2% were electroless coated with nickel-phosphorus alloy from baths containing sodium hypophosphite (NaH{sub 2}PO{sub 2}{center_dot}H{sub 2}O). The effect of coating time on thickness and phosphorus content of the deposit was analyzed. The free corrosion potentials and corrosion rates of the coated specimens were obtained by the Tafel extrapolation method in 1.0 M hydrochloric acid (HCl) solution. Corrosion rates of the coated specimens after heat treatment also were studied. The observed corrosion characteristics were explained by the mixed-potential theory.},
doi = {10.5006/1.3293617},
url = {https://www.osti.gov/biblio/103957},
journal = {Corrosion},
number = 8,
volume = 51,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1995},
month = {Tue Aug 01 00:00:00 EDT 1995}
}
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