Improvement of hardness and wear resistance in SiC/Ti–6Al–4V surface composites fabricated by high-energy electron beam irradiation

Oh, Jun Cheol; Yun, Eunsub; Golkovski, Mikhail G.; Lee, Sunghak

doi:10.1016/s0921-5093(02)00821-3

Cited by 50 publications

(22 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This was reported in their previous paper [32]. In the thick surface layer(1.7-2.1mm), a considerable amount of large hexagonal-pillar-shaped primary Ti 5 Si 3 particles are distributed in the martensitic matrix.…”

Section: B Surface Composite Layer On Ti-6al-4v Substratesupporting

confidence: 73%

Approaches of Wear Resistance Improvement of Ti-6Al-4V by Surface Modification

Hu¹,

Hu²

2015

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

View full text Add to dashboard Cite

Abstract-To overcome the the drawbacks of poor wear resisitance of titanium and its alloys, so far many efforts have been made to improve wear resistance and some techniques have been developed. Theses techniques can be classified into two categories: surface coating and surface cladding. Surface coatings generally include BN film, diamond-like carbon films and TiN films. These surface thin layers very significantly enhance the tribological properties although the some disadvantages still exist such as the small thickness, unstable composition, and poor adherence to substrate. The most applicable achievement is surface cladding. Surface cladding overcomes the drawbacks of surface coating. Not only the thickness of the surface composite layers can be controlled but the composition of the layer can be flexiblely choiced as well. Compositions of clad layer are diversified. The bonding strength between the surface clad layer and the substrate is very high. Among those, the laser beam cladding is a cutting edge and a promising method.

show abstract

Section: B Surface Composite Layer On Ti-6al-4v Substratesupporting

confidence: 73%

Approaches of Wear Resistance Improvement of Ti-6Al-4V by Surface Modification

Hu¹,

Hu²

2015

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

View full text Add to dashboard Cite

show abstract

“…Due to its excellent mechanical, optical, thermochemical,electronic and electrical properties SiC has been extensively inves-tigated for potential uses in microelectronics [1,2], hard andprotective coatings for tools [3,4], water splitting [5] and bio-applications [6]. More recently, it has been suggested that due toits very low neutron absorption cross section, SiC could be used inthe nuclear industry as encapsulating coatings for nuclear fuel innext generation reactors [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…More recently, it has been suggested that due toits very low neutron absorption cross section, SiC could be used inthe nuclear industry as encapsulating coatings for nuclear fuel innext generation reactors [7,8]. For such applications the depositedSiC films are expected to maintain their properties at temperaturesbetween 500 and 800•C and even higher, up to 1000•C, in the caseof an emergency if an accident occurs.The deposition of high quality SiC films to study their proper-ties is a challenging process due to their low sputtering yield, highmelting temperature and reactivity with oxygen [1][2][3][4]. Progresshas been recently made using CVD, ion beam or sputtering tech-niques [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of pulsed laser deposited nanocrystalline SiC films

Crǎciun

Socol

Cristea

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

The mechanical properties of nanocrystalline SiC thin films grown on (100) Si at a substrate temperatureof 1000•C under a CH4atmosphere using the pulsed laser deposition (PLD) technique were investigated.Nanoindentation results showed that films exhibited hardness values around 36 GPa and Young modulusvalues around 250 GPa. Scratch tests found that films were adherent to the substrate, with critical loadvalues similar to those recorded for other hard coatings deposited on significantly softer Si substrates.Wear tests performed at a temperature of 900•C showed that films exhibited friction coefficients andwear rates very similar to those measured at room temperature, due to the presence of C-C bonds asevidenced by X-ray photoelectron spectroscopy investigations. These results recommend such coatingsfor demanding high temperature applications such as nuclear fuel encapsulation.

show abstract

“…В конце 1990-х годов в научной литературе стали появляться работы по повышению износо-стойкости титана и сплавов на его основе мето-дами электронно-лучевой наплавки в воздушной среде [15,16,25].…”

Section: Introductionunclassified