Microstructural characterisation of a Ni-Cr-B-C based alloy coating produced by high velocity oxy-fuel thermal spraying

Dent, A.H.; Horlock, A.J.; McCartney, D.G.; Harris, S.J.

doi:10.1016/s0257-8972(01)00996-3

Cited by 88 publications

(48 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of the cheaper method compared to other conventional ones such as the vacuum evaporation method, the amorphous alloy coating films by the thermal spraying method can be applied to the wide range of industrial applications. [1][2][3][4] High chromium Fe-Cr based amorphous alloys containing about 35 at% Cr have excellent high hardness and high corrosion resistance, [5][6][7][8] however, the alloys exhibit the high melting temperatures of about 1000 C and above. Consequently, the high chromium Fe-Cr-based amorphous alloys have not yet been well produced by previous thermal spraying methods.…”

Section: Introductionmentioning

confidence: 99%

High Chromium Fe-Cr-Mo-P-C Amorphous Coating Films Produced by Thermal Spraying Technique

et al. 2011

View full text Add to dashboard Cite

High chromium Fe-Cr-Mo-P-C amorphous coating films containing up to about 35 at% Cr having high hardness and high corrosion resistance have been produced by a newly developed thermal spraying technique. In order to control the temperatures of the powder particles in the flame spray and the substrate, a cylindrical nozzle, with external cooling nitrogen gas, was mounted to the front end of the thermal spraying gun. Fe 70 Cr 10 P 13 C 7 and Fe 38 Cr 35 Mo 7 P 13 C 7 films with various external cooling gas velocities between 20 m/s and 40 m/s exhibited entire amorphous structure without oxides and/or unmelted powder particles. High corrosion-resistance of the Fe 38 Cr 35 Mo 7 P 13 C 7 amorphous coating film was observed in immersion tests using 35% hydrochloric acid.

show abstract

Section: Introductionmentioning

confidence: 99%

High Chromium Fe-Cr-Mo-P-C Amorphous Coating Films Produced by Thermal Spraying Technique

et al. 2011

View full text Add to dashboard Cite

show abstract

“…However, application range of these materials is limited by their poor resistance to frictional wear. This disadvantage can be eliminated using surface engineering methods, such as PVD processes [1], thermal spraying [2], CVD [3] and various plasma nitriding processes [4]. In dental alloys, biocompatibility and resistance to wear and corrosion are required properties.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Wear Behavior of Plasma Nitrided Nickel Based Dental Alloy

Kahraman

Karadeniz

2011

Plasma Chem Plasma Process

View full text Add to dashboard Cite

In the present work, the plasma nitriding behavior of a nickel based dental alloy was investigated. Plasma nitriding experiments carried out under constant gas mixture (15% H 2 -85% N 2 ) for different process parameters including time (4, 6, 10, and 20 h) and temperature (400, 450, 500, and 550°C). Depending on nitriding parameters, it was found that triple or double layers formed on the surface of the samples. Increasing of treatment time and temperature has resulted in a double layer. c N1 layer was in formed all nitrided samples. However, c N2 layer is formed only at low temperatures and in short times. Layer growth of nickel based alloys increases until a critical time or a critical temperature reached. Above these critical values, it is observed that the layer thickness decreases. It was also found that plasma nitriding not only increases the surface hardness but also improves the wear resistance of nickel based dental alloy. The maximum wear resistance was observed at 400°C for 10 h due to the high hardness and thickness of the nitride layers.

show abstract

“…[1][2][3][4] Especially, Fe-Cr based amorphous alloys have high hardness and high corrosion resistance. [5][6][7][8] However, the Fe-Cr based amorphous alloys having high melting temperatures of about 1000 C have not yet been well produced by previous thermal spraying methods.…”

Section: Introductionmentioning

confidence: 99%

Formation of Fe-Based Amorphous Coating Films by Thermal Spraying Technique

et al. 2010

View full text Add to dashboard Cite

Some amorphous Fe-Cr-P-C coating films having high hardness and high corrosion resistance have been produced by a newly developed thermal spraying technique. In order to control the temperatures of the powder particles in the flame spray and the substrate, a newly developed cylindrical nozzle, with external cooling nitrogen gas, was mounted to the front end of the thermal spraying gun. Fe 70 Cr 10 P 13 C 7 films with various external cooling gas velocities between 20 m/s and 40 m/s exhibited entire amorphous structure without oxides and/or unmelted particles. Corrosion-resistance of the films was observed in immersion tests using various corrosive liquids. An amorphous film was formed on the surface of the shaft sleeve of the slurry pump by using the cylindrical nozzle. This shaft sleeve was installed in the slurry pump of chemical fertilizer maker's production line and the life test was done under the real operation condition for two months.

show abstract

Microstructural characterisation of a Ni-Cr-B-C based alloy coating produced by high velocity oxy-fuel thermal spraying

Cited by 88 publications

References 12 publications

High Chromium Fe-Cr-Mo-P-C Amorphous Coating Films Produced by Thermal Spraying Technique

High Chromium Fe-Cr-Mo-P-C Amorphous Coating Films Produced by Thermal Spraying Technique

Characterization and Wear Behavior of Plasma Nitrided Nickel Based Dental Alloy

Formation of Fe-Based Amorphous Coating Films by Thermal Spraying Technique

Contact Info

Product

Resources

About