Co-deposition of micro- and nano-sized SnO2 particles in the Zn-matrix composite coatings produced from a Zn-sulphate bath by electroplating

Abstract This study developed microstructure-based finite element (FE) models to investigate the behavior of cold-sprayed aluminum-alumina (Al-Al2O3) metal matrix composite (MMCs) coatings subject to indentation and quasi-static compression. Based on microstructural features (i.e., particle weight fraction, particle size, and porosity) of the MMC coatings, representative volume elements (RVEs) were generated by using Digimat software and then imported into ABAQUS/Explicit. State-of-the-art physics-based modelling approaches were incorporated into the model to account for particle cracking, interface debonding, and ductile failure of the matrix. This allowed for analysis and informing on the deformation and failure responses. The model was validated with experimental results for cold-sprayed Al-18 wt.% Al2O3, Al-34 wt.% Al2O3, and Al-46 wt.% Al2O3 metal matrix composite coatings under quasi-static compression by comparing the stress versus strain histories and observed failure mechanisms (e.g., matrix ductile failure). The results showed that the computational framework is able to capture the response of this cold-sprayed material system under compression and indentation, both qualitatively and quantitatively. The outcomes of this work have implications for extending the model to materials design and under different types of loading (e.g., erosion and fatigue).

Download Full-text

Effects of LaB6 on microstructure evolution and properties of in-situ synthetic TiC+TiBx reinforced titanium matrix composite coatings prepared by laser cladding

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2020.126409 ◽

2020 ◽

Vol 403 ◽

pp. 126409 ◽

Cited By ~ 1

Author(s):

Jing Liang ◽

Xiuyuan Yin ◽

Ziyang Lin ◽

Suiyuan Chen ◽

Changsheng Liu ◽

...

Keyword(s):

Matrix Composite ◽

Laser Cladding ◽

Microstructure Evolution ◽

Composite Coatings ◽

Titanium Matrix ◽

Titanium Matrix Composite

Download Full-text

Effect of octylphenyl ether group nonionic surfactant on the electrodepositon of the hexagonal boron nitride reinforced Ni-B matrix composite coatings

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2019.125131 ◽

2020 ◽

Vol 381 ◽

pp. 125131 ◽

Cited By ~ 3

Author(s):

Ali Tozar ◽

İsmail H. Karahan

Keyword(s):

Boron Nitride ◽

Nonionic Surfactant ◽

Matrix Composite ◽

Hexagonal Boron Nitride ◽

Composite Coatings ◽

Ether Group

Download Full-text

Morphology and Hardness of Electrochemically-Codeposited Ti-Dispersed Ni-Matrix Composite Coatings/ Morfologia I Twardość Elektrochemicznie Współosadzonych Powłok Kompozytowych Ni-Ti

Archives of Metallurgy and Materials ◽

10.2478/amm-2014-0220 ◽

2014 ◽

Vol 59 (4) ◽

pp. 1287-1292 ◽

Cited By ~ 2

Author(s):

S. Srikomol ◽

P. Janetaisong ◽

Y. Boonyongmaneerat ◽

R. Techapiesancharoenkij

Keyword(s):

Matrix Composite ◽

Current Density ◽

High Current Density ◽

Composite Coatings ◽

Initial Increase ◽

Particle Loading ◽

Plating Bath ◽

Matrix Deformation ◽

Ti Particles

Abstract The effects of current density and Ti particle loading in a plating bath on the morphology and hardness of Ni-Ti composite coatings via an electrochemical-codeposition process were investigated. The Ti-reinforced Ni-matrix composite coatings were codeposited on copper substrates using a Ni-ion electrolytic solution stably suspended with -45 micron Ti particles. Within the current studied range, the coatings’ Ti contents are in the range between 46 and 62 at.%. The morphology appeared to vary with current density. Structures of the Ni-Ti composite coatings produced under low current density conditions revealed denser structures, which is in contrast to the more porous structures noted in the coatings produced under high current density. An initial increase of current density from 100 to 150 mA/cm2 also tends to raise Ti coating content. The reinforcement of Ti particles in the coatings also increased their hardness, which is attributed to the possible role of the embedded Ti particles in hindering matrix deformation. The effect of Ti loading on the coating’s Ti contents was not significant under conditions used in the present study

Download Full-text