A novel method to fabricate composite coatings via ultrasonic-assisted electro-spark powder deposition

Zhao, Hang; Gao, Chang; Wu, Xiaoyu; Xu, Bin; Lu, Yanjun; Zhu, Likuan

doi:10.1016/j.ceramint.2019.07.279

Cited by 13 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It indicates that the square or rectangle with bright color is SnSb, the dark color is α-Sn, and the chain or elongated needle is Cu 6 Sn 5 . However, it can be seen in Figure 4a-c that the grains of Babbitt B83 in the electro-spark-deposited running-in coatings were very dense, refined, and uniformly distributed, which is the result of rapid heating and cooling of the antifriction materials by ESD technology [32,33].…”

Section: The Cross-section Morphology Of the Running-in Coatingsmentioning

confidence: 99%

The Characterization of Running-In Coatings on the Surface of Tin Bronze by Electro-Spark Deposition

Zhengchuan

Коноплянченко²,

Tarelnyk³

et al. 2022

Coatings

View full text Add to dashboard Cite

Antifriction materials, such as silver, copper, Babbitt B83, and graphene oxide (GO), were used to prepare running-in coatings on the surface of bronze QSn10-1 by electro-spark deposition (ESD). The analyses of mass transfer, roughness, thickness, morphology, composition, nanoindentation, and tribological properties of the coatings were investigated. The results showed that the running-in coatings were dense with refined grains that were uniformly distributed and in a metallurgical bond state with the tin bronze substrate. At optimum process parameters, the mass transfer was 244.2 mg, the surface roughness was 15.9 μm, and the thickness of the layers was 160 μm. The diffraction peaks clearly indicated the phases corresponding to α-Sn, SbSn, Cu6Sn5, and Cu, and a phase of Ag3Sn appeared. The modulus and the hardness of the running-in coatings were 24.9% and 14.2% of the substrate, and the deformation ratio of the coatings was 10.2% higher than that of the substrate. The friction coefficient of the running-in coatings was about 0.210 after the running-in stage, which was 64.8% of that of the substrate (0.324). The main wear mechanism of the running-in coatings under optimal process parameters is plastic deformation, scratching, and slight polishing. The running-in coating deformation under the action of high specific loads provides the automatic adjustment of parts and compensation for manufacturing errors.

show abstract

Section: The Cross-section Morphology Of the Running-in Coatingsmentioning

confidence: 99%

The Characterization of Running-In Coatings on the Surface of Tin Bronze by Electro-Spark Deposition

Zhengchuan

Коноплянченко²,

Tarelnyk³

et al. 2022

Coatings

View full text Add to dashboard Cite

show abstract

“…These methods can be used in specific case for their advantages, but limitations such as complicated process and expensive equipment restrict their application [12]. Micro-EDM is suitable for the processing of hard and brittle materials and 3D complex curved parts, because there is no obvious cutting force [13][14][15]. However, tool electrode…”

Section: Introductionmentioning

confidence: 99%

Micro Electrochemical Machining of Array Micro-Grooves Using In-Situ Disk Electrode Fabricated by Micro-WEDM

Wang

Zhang

et al. 2020

Micromachines

View full text Add to dashboard Cite

This paper develops an array micro-grooves manufacturing method using micro electrochemical machining (ECM) with disk electrode, which is prepared by in-situ micro wire electrical discharge machining (WEDM). This technology focuses on the difficulty of array structure manufacture in micro-electro-mechanical systems (MEMS). A micro-ECM system is built based on the micro-WEDM machine to achieve high precision processing of the array micro-grooves. Since micro-WEDM has good performance in high precision machining of the rotating structure, single and multi-edge disk electrodes can be fabricated in-situ using graphite. The as-prepared disk tool electrode is directly used for micro-electrochemical milling of the array micro-grooves without disassembling away from the device, which avoids the positioning error caused by the re-clamping of the disk electrode. With the advantages of high surface quality and no electrode loss, micro-ECM improves the manufacture performance of the micro-parts. Through wire path optimization, the shape accuracy of the disk edge is improved. After the research of the micro-ECM parameters, the process is improved, and finally, the high precision array micro-grooves are obtained. This method combines the advantages of micro-WEDM and disk electrode micro-ECM milling, and it is convenient for large-scale manufacture of array micro-structures on micro-parts and MEMS.

show abstract

Study of the Effect of Ultrasonic Vibration on Nickel-Based Coating by Electrical Discharge Machining

Hou

Zhou

et al. 2023

J. of Materi Eng and Perform

View full text Add to dashboard Cite

A novel method to fabricate composite coatings via ultrasonic-assisted electro-spark powder deposition

Cited by 13 publications

References 34 publications

The Characterization of Running-In Coatings on the Surface of Tin Bronze by Electro-Spark Deposition

The Characterization of Running-In Coatings on the Surface of Tin Bronze by Electro-Spark Deposition

Micro Electrochemical Machining of Array Micro-Grooves Using In-Situ Disk Electrode Fabricated by Micro-WEDM

Study of the Effect of Ultrasonic Vibration on Nickel-Based Coating by Electrical Discharge Machining

Contact Info

Product

Resources

About