Microstructural Characterization and Mechanical Property of Iridium Coating Produced by Double Glow Plasma

Wu, Wangping; Lin, Xin; Chen, Zhaofeng; Cong, Xiangna; Xu, Tengzhou; Qiu, Jinlian

doi:10.1007/s11090-011-9293-4

Cited by 24 publications

(8 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The preferred orientation of the coating was because of the initial nuclei preferred growth on the surface of the substrate. The (110)‐oriented Ir coating was rough, underdense, with void in the coating. The vigorous high‐energy ion bombardment broke and prevented the generation of the low energy (100) and (111) crystal faces.…”

Section: Resultsmentioning

confidence: 99%

Micropore formation mechanism in iridium coating after high‐temperature treatment

Chen

2016

Surface & Interface Analysis

View full text Add to dashboard Cite

Noble metal iridium is of great interest for high-temperature applications and extreme environments. A high (110)-oriented iridium coating was prepared by a double glow plasma process on the surface of niobium substrate. The morphology and composition of the coating were determined by scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy, respectively. The phase of the coating was identified by X-ray diffraction analysis. The misorientation angle distributions of grains on the surface and cross section of the coating were characterized by electron backscatter diffraction system. The uniform and pure iridium coating consisted of the submicrometer-sized columnar grains with high-angle boundary. The mean misorientation angles on the surface and cross section of the coating were 38.6°and 45.6°, respectively. After hightemperature treatment, the coating was composed of equiaxed grains with distinct grain boundaries. Micropores appeared on the fracture surface of the coating. The micropore formation mechanism in Ir coating after high-temperature treatment was investigated.

show abstract

Section: Resultsmentioning

confidence: 99%

Micropore formation mechanism in iridium coating after high‐temperature treatment

Chen

2016

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

“…However, some surface failure phenomena, such as wear, often affect the service life of 45 steel (Liu et al , 2013; Ozsarac et al , 2007). Therefore, some techniques can be used to improve the surface properties of 45 steel, because wear and other failures are the first to occur on the surface of the material (Lin et al , 2018; Wu et al , 2011).…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviors of HfC coating prepared on 45 steel via double glow plasma surface metallurgy technique

Zang

Liang

Miao

et al. 2022

ILT

View full text Add to dashboard Cite

Purpose 45 steel is a common material for the manufacture of various components such as shafts or gears. However, its poor surface properties often limit its applications. The purpose of this paper is to find a way to enhance the surface performance of 45 steel, which is expected to improve the wear resistance of 45 steel. Design/methodology/approach Double glow plasma surface metallurgy technique was used to prepare hafnium carbide (HfC) coatings on the surface of the 45 steel with two preparation process; one is to diffuse two elements together, while the other is to diffuse step by step. The scanning electronic microscopy and the X-ray diffraction were used to analyze the morphology and phase of the HfC coatings. And then the wear tests were carried out for this coating. Findings Coating diffused step by step shows better performance; it has a 15-µm alloyed layer which is uniform and dense and its hardness can reach up to 1326.5 Vickers-hardness (HV). While the coating fabricated by diffusing elements together owns a 10-µm alloyed layer and its hardness is 1204.1 HV. According to the wear test results, both coatings have a protective effect on the substrate and the coating prepared by step-by-step diffusion process has less wear volume, indicating that it possesses better friction reduction. Originality/value A new method which diffuses elements together was successfully used to prepare compound HfC coating, which can reduce the cost of coating preparation and improve the efficiency of coating preparation.

show abstract

“…Also, long process times might be an issue regarding commercialization of the process. On the other hand, radio frequency (rf) magnetron sputtering, compared to e-beam evaporation, provides additional freedom in the choice of deposition parameters and thus allows for an extended and more precise control of the evolving microstructure of deposited films [21][22][23][24][25][26][27]. Especially, additional substrate biasing provides control over the ion energy and the ratio of the accelerated-ion flux to the flux of deposited neutral particles on the substrate surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of substrate bias on the growth behavior of iridium on A-plane sapphire using radio frequency sputtering at low temperatures

et al. 2018

View full text Add to dashboard Cite

Microstructural Characterization and Mechanical Property of Iridium Coating Produced by Double Glow Plasma

Cited by 24 publications

References 27 publications

Micropore formation mechanism in iridium coating after high‐temperature treatment

Micropore formation mechanism in iridium coating after high‐temperature treatment

Tribological behaviors of HfC coating prepared on 45 steel via double glow plasma surface metallurgy technique

Effect of substrate bias on the growth behavior of iridium on A-plane sapphire using radio frequency sputtering at low temperatures

Contact Info

Product

Resources

About