Abrasive wear of plasma coatings with different structures on titanium alloys

Pokhmurs'kyi, V. I.; Kalakhan, O. S.; Zavalii, І. Yu.; Okhota, H. H.; Denys, R.V.

doi:10.1007/s11003-005-0068-z

Cited by 2 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The variations of the structure of plasma coatings were also investigated in [5]. It was discovered that, in the course of the tests in the friction zone, the physicomechanical properties of the coatings changed and new compounds…”

Section: Introductionmentioning

confidence: 99%

“…It is shown that these coatings have the properties of the coatings obtained by the methods of detonation and plasma spraying. Numerous characteristics of gas-thermal coatings were analyzed, including their wear resistance and the strength of adhesion of the coatings to the substrate.The variations of the structure of plasma coatings were also investigated in [5]. It was discovered that, in the course of the tests in the friction zone, the physicomechanical properties of the coatings changed and new compounds…”

mentioning

confidence: 99%

See 1 more Smart Citation

Wear resistance of plasma coatings for a constant work of friction

2007

View full text Add to dashboard Cite

620.178.16(045) and V. N. BorodiiWe analyze the wear resistance of plasma coatings for a constant work of friction. The dependences of the wear resistance of the coatings are obtained for a broad range of loading conditions. It is shown that the minimum sensitivity to loading conditions is exhibited by the molybdenum coatings. It is also established that the wear resistance of the coatings decreases as the amplitude of displacements increases and the cyclic frequency of the tests decreases due to the intensification of fatigue processes on the surfaces. The comparative characteristics of coatings are presented. Introduction.In the contemporary machine building, the operation of components in friction units is, as a rule, connected with wear [1]. At present, plasma coatings are extensively used in the production of building structures, in almost all branches of machine building, power engineering, engine building, aircraft and spacecraft industries, and in many other fields of contemporary engineering. The application of coatings can solve the problems of enhancement of atmospheric resistance, operating stability, adhesion, thermal and erosion resistances and improvement of the protective properties and chemical stability aimed at guaranteeing the required service life of the products [2]. However, the most important problem is the elevation of the wear resistance of the parts and units of machines and mechanisms.The deposition of coatings is one of the most efficient methods of wear protection. At present, there are numerous specially developed technological procedures and a broad class of materials aimed at getting protective coatings with high characteristics of wear resistance. In the production and renovation of the components of aircrafts, it is customary to use wear-resistant coatings obtained by the methods of gas-thermal spraying.The regularities of development of the processes of wear are affected by numerous factors, such as the amplitude of displacements, specific load, frequency of vibration, the type of contact of the mating components, etc.[1]. The variations of these factors affect the processes running in the friction contact and, as a result, the surfaces are damaged. The analysis of the roles of various factors and the availability of the data on the character of development of the processes running in mechanochemical materials makes it possible to substantiate the choice of materials of mating surfaces in the production and renovation of machine parts and the methods of wear protection.The problem of wear resistance of gas-thermal coatings was studied by numerous researchers [3-5, etc.]. Thus, the wear resistance of gas-thermal coatings sprayed by the detonation method was investigated in [3]. These coatings are characterized by low porosity and high adhesive strength. The investigations were carried out in various gaseous atmospheres and liquid media. The ranges of serviceability of the coatings were determined depending on the loading conditions. The coatings applied by the pulsed plasma ...

show abstract

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%