Efficient Preparation of Nanoparticle-Reinforced Nickel-based Composite Coating with Highly Preferred (220) Orientation

Renjie Ji,Hang Dong,Fan Zhang,Dege Li,Xinlei Wu,Qiang Sun,Hui Jin,Tiancong Dong,Baoping Cai,Chi Ma,Lilong Zhao,Yonghong Liu,Peng Liu

doi:10.1186/s10033-020-00506-7

Abstract

Nanoparticle-reinforced metal matrix composite coatings have significant potential in mechanical part surface strengthening owing their excellent mechanical properties. This paper reports a phenomenon in which the grain orientation gradually evolves to (220) as the deposition current density increases when preparing nanoparticle-reinforced nickel-based composite coatings through jet electrodeposition (JED). During the preparation of the Ni-SiC composite coatings, the deposition current density increased from 180 A/dm2 to 220 A/dm2, and TC(220) gradually increase from 41.4% to 97.7%. With an increase of TC(220), the self-corrosion potential increases from −0.575 to −0.477 V, the corrosion current density decreases from 9.52 μA/cm2 to 2.76 μA/cm2, the diameter of the corrosion pits that after 10 days of immersion in a 3.5 wt% NaCl solution decreases from 278–944 nm to 153–260 nm, and the adhesion of the coating increases from 24.9 N to 61.6 N. Compared a conventional electrodeposition (CED), the Ni-SiC composite coating using JED has the advantages of a smooth surface morphology, high corrosion resistance, and strong adhesion, which are more obvious with an increase in TC(220).

Highlights

1 Introduction With the continuous development of modern industry, the wear and corrosion resistances of an increasing number of key components of high-end equipment are required; high-performance composite coatings usually need to be prepared on the key component surface
Nanoparticle-reinforced metal matrix composite coatings have significant potential application in surface strengthening of mechanical parts owing to their excellent hardness, abrasion resistance, corrosion resistance
During the jet electrodeposition (JED) process, the deposition layer is rapidly formed on the surface of the substrate under the condition of high current density by means of high-speed jetting

Summary

Introduction

With the continuous development of modern industry, the wear and corrosion resistances of an increasing number of key components of high-end equipment are required; high-performance composite coatings usually need to be prepared on the key component surface. The microstructure, corrosion resistance, and the adhesion force of the Ni-SiC composite coating with a highly preferred (220) orientation were investigated.

Results

Conclusion