NDLI: Microstructure evolution and erosion-corrosion resistance of amorphous Ni-P coatings

Content Provider	Springer Nature Link
Author	Ji, Xiulin Jiang, Shuang Li, Hongbin Yan, Chunyan Jiang, Liangfeng
Copyright Year	2012
Abstract	Amorphous Ni-P coatings with 7.8 wt% P were electrodeposited successfully from an electrolytic bath containing 15 g/L H$_{3}$PO$_{3}$. Its microstructure evolution by heat treatment and erosion-corrosion resistance are investigated in this paper. From room temperature to 500 °C, there were three exothermic crystalline phases of Ni$_{5}$P$_{2}$, Ni$_{3}$P and Ni precipitated from the amorphous base. The microstructure evolution of the amorphous Ni-P deposits follows the sequence of amorphous, amorphous-noncrystalline, (Ni$_{5}$P$_{2}$ + Ni$_{3}$P), then (Ni$_{5}$P$_{2}$ + Ni$_{3}$P + Ni) with increasing heat treatment temperature. The mass loss rate of amorphous Ni-P coatings is approximately 14 mg/h and the synergism of erosion-corrosion was larger than half of the total mass loss at an impingement velocity of 8.37 m/s under saline-sand slurry. The erosion-corrosion resistance of amorphous Ni-P coatings can be enhanced obviously by heat treatment because of the elevated hardness and corrosion resistance.
Starting Page	655
Ending Page	660
Page Count	6
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	18
Issue Number	4
e-ISSN	20054149
Language	English
Publisher	The Korean Institute of Metals and Materials
Publisher Date	2012-08-20
Publisher Place	Springer
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	amorphous materials deposition erosion corrosion coating Operating Procedures, Materials Treatment Characterization and Evaluation of Materials Engineering Thermodynamics, Heat and Mass Transfer Magnetism, Magnetic Materials Continuum Mechanics and Mechanics of Materials Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Condensed Matter Physics

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