Influence of the substrate hardness on the cavitation erosion resistance of TiN coating

Krella, Alicja; Czyżniewski, A.

doi:10.1016/j.wear.2007.02.003

Cited by 61 publications

(29 citation statements)

References 14 publications

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“…But, in the specialized literature, cavitation erosion behavior of plasma nitrided niobium has not been studied. Despite that significant research works have been done on the cavitation behavior of pure metals and metallic alloys, a much lesser degree of published works has studied the behavior of engineering ceramics [6][7][8][9][10][11][12][13] . Plasma nitriding technique was used here in order to obtain niobium nitride (ceramic-like material) surfaces formed in pure niobium substrates.…”

Section: First Results Of Cavitation Erosion Behavior Of Plasma Nitrimentioning

confidence: 99%

“…To finish, it is worth to be noted that the system to be studied here also differs substantially from those in [12][13] , as for example, for thin films deposited on substrate surfaces, for which brittle mode fracture and film delamination would be present 13 . As expected for that case of thin film coatings, independently of the substrate nature, if ceramic or metallic, adhesion should be a decisive property to be considered, which concludes the main aspects related to the present subject.…”

Section: Cavitation Erosion Behavior Of Structural Ceramicsmentioning

confidence: 99%

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First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

et al. 2015

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This work presents the first results of the plasma nitriding study performed in pure niobium in order to increase its cavitation erosion resistance. Samples were prepared from 98.9% purity and 90% reduction cold-rolled niobium bars. Annealing treatment of the cold-worked niobium samples was carried out in vacuum furnace at 1.33 Pa pressure, in the temperature of 1000 °C, for a time of 60 min. Annealed samples showing hardness of 80 HV were cut to dimensions of 20 × 30 × 4 mm 3 . Nitriding treatment was conducted at 1080 °C, gas mixture of 90% N 2 + 10% H 2 , flow rate of 5 × 10 -6 Nm 3 s -1 , and pressure of 1200 Pa (9 Torr), for a total time of 4 h comprised by two treatment steps of 2 h each. For comparison purpose, results for nitrided and non-nitrided niobium are confronted. Samples were characterized by XRD, nanoindentation, microhardness, SEM, and 2D surface topography and 3D interferometry profile analysis techniques. Cavitation testing was conducted according to ASTM G32-09. Comparatively, promising results based on the formation of niobium nitride phases in treated surfaces are presented and discussed in the present work.

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Section: First Results Of Cavitation Erosion Behavior Of Plasma Nitrimentioning

confidence: 99%

Section: Cavitation Erosion Behavior Of Structural Ceramicsmentioning

confidence: 99%

First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

et al. 2015

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“…[50] Many research studies have agreed that cavitation erosion damage strongly depends on the hardness alterations across the sample surface. [34,51] As the material is exposed to great impulsive pressures by the collapse of cavitation bubbles, the successive hydrodynamic impacts lead to a progressive work hardening resulting in the strain accumulation in the vicinity of the impact zone.…”

Section: Analysis and Mechanismsmentioning

confidence: 99%

Evaluation of Cavitation Erosion Behavior of Commercial Steel Grades Used in the Design of Fluid Machinery

Tzanakis

Bolzoni

Eskin

et al. 2017

Metall Mater Trans A

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The erosion response under cavitation of different steel grades was assessed by studying the erosion rate, the volume removal, the roughness evolution, and the accumulated strain energy. A 20 kHz ultrasonic transducer with a probe diameter of 5 mm and peak-to-peak amplitude of 50 lm was deployed in distilled water to induce damage on the surface of commercial chromium and carbon steel samples. After a relatively short incubation period, cavitation induced the formation of pits, cracks, and craters whose features strongly depended on the hardness and composition of the tested steel. AISI 52100 chromium steel showed the best performance and is, therefore, a promising design candidate for replacing the existing fluid machinery materials that operate within potential cavitating environments.

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“…Alternatively, Ti-C-N films are known to show a lower friction coefficient of about 0.3 as compared with Ti-N coatings. 10,11) However, Ti-C-N coatings show poor adhesive wear resistance depending on counterpart materials and operating conditions. 12) Mo-added coatings are also known to show a lower friction coefficient.…”

Section: Introductionmentioning

confidence: 99%

Hardness and Wear Properties of Ti-Mo-C-N Film

et al. 2016

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The hardness and wear properties of Ti-Mo-C-N films were investigated by nanoindentation and ball-on-disc measurements, respectively. Ti-Mo-C-N films were deposited onto a stainless steel substrate by a reactive RF magnetron sputtering in the mixture of argon (7.5 ccm) and nitrogen (06.0 ccm) gases using Ti 25 Mo 25 C 50 target. Ti-Mo-C film deposited without nitrogen gas flow showed a hardness of 34.8 GPa. The hardness drastically decreased with increasing nitrogen gas flow rate (f N2 ) and reached to a minimum hardness of 16.4 GPa at f N2 ¼ 2:0 ccm. Contrarily, at over f N2 ¼ 3:0 ccm, the hardness drastically increased with increasing f N2 and reached a maximal value of 32 GPa, and then slightly decreased again with further increase of f N2 . It was found by TEM observation that the drastic decrease in hardness is caused by the formation of nanocrystalline microstructure, while the increase in hardness is due to the microstructural change from nanocrystalline to columnar structure. The friction coefficient decreased with increasing f N2 and the film deposited at f N2 ¼ 5:0 ccm showed a minimum value of 0.27. The simple oxidation test in air indicated that lubricious MoO 3 is easy to be formed in the film deposited at a high f N2 , which should cause the reduction of friction coefficient.

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Influence of the substrate hardness on the cavitation erosion resistance of TiN coating

Cited by 61 publications

References 14 publications

First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

Evaluation of Cavitation Erosion Behavior of Commercial Steel Grades Used in the Design of Fluid Machinery

Hardness and Wear Properties of Ti-Mo-C-N Film

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