Finishing of Nickel Matrix Composite Coatings

Dyl, T.; Starosta, Robert

doi:10.20944/preprints201911.0374.v1

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…A coating of nickel and aluminum alloy by flame spraying was used on flat rolled steel products. The results of the research on the influence of the quantity of plastic strain on the consolidation and stereometric properties of the surface layer are detailed in [ 13 , 14 ].…”

Section: Materials Selection and Scope Of Researchmentioning

confidence: 99%

“…Experimental tests after the rolling process of flat products determined the influence of the quantity of strain on the reduction index of roughness of nickel-aluminum alloy coatings. The experimental and numerical analysis of the rolling process for producing plates, plane, ball, shaft, and round surface are presented in [ 13 , 14 , 15 , 16 , 41 , 42 , 43 , 44 ]. During the rolling process, the quality of the coating produced on the base material was analyzed as well as the values of permanent deformations for the applied relative drafts of ε = 5% and 10%.…”

Section: Experimental Research Of Plastic Workingmentioning

confidence: 99%

“…Therefore, it is significant to the finishing treatment of steel surface layers by applying coatings by flame spraying of alloy and composite materials. Coatings applied by flame spraying have a high roughness, therefore they must be subjected to a finishing operation [ 13 , 14 , 15 , 16 , 17 ]. The application of methods based on plastic deformation is increasing among those for the finishing of machine parts.…”

Section: Introductionmentioning

confidence: 99%

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The Experimental and Numerical Research for Plastic Working of Nickel Matrix Composite Coatings

et al. 2020

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In the machine, metallurgical, and shipbuilding industries, steel products with alloy and composite coatings based on nickel may be used. It is expedient to improve the physicochemical properties of the surface layer of products as they have a significant roughness value after thermal spraying. It is therefore important to finish the layers applied by flame spraying, where machining is used for this purpose. However, it causes a loss of coating material, which is quite expensive. Therefore, in order to reduce costs and improve the quality of the surface layer, the finishing treatment of nickel-based coatings by means of plastic working is used. Two types of plastic working were proposed: rolling and burnishing. Numerical and experimental tests of the plastic processing of alloy coatings were carried out. The roughness of the coatings after rolling decreased to 1/25 and 30% strengthening of the alloy coating matrix was determined. After burnishing, roughness was reduced to 1/12 and the alloy coatings were strengthened by 25%. Plastic working by rolling and burnishing has a beneficial effect on the surface quality of the workpiece, not only by significantly improving the roughness, but also by increasing the strength properties of the surface layers.

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Section: Materials Selection and Scope Of Researchmentioning

confidence: 99%

Section: Experimental Research Of Plastic Workingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Experimental and Numerical Research for Plastic Working of Nickel Matrix Composite Coatings

et al. 2020

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“…Nowadays, machines and devices operate under increasingly greater operational loads. This forces the development of innovative construction materials or surface treatment technologies that would ensure high reliability and durability of machine parts [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

After-Machining Surface Layer of Composite Coatings Obtained by Thermal Spraying

Starosta

Dyl

2022

Coatings

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The surface of machine elements is changed to improve their mechanical properties. Ceramic-metal composite coatings are mainly used to increase the durability of machine parts. Therefore, new materials are constantly searched for application in the future development of metal and ceramic composites. The nickel and iron elements are usually used as a base and Al2O3 as tough particles. The welding technology for applying alloy and composite coatings is widely used. The common technology used to apply composite coatings is thermal spraying. It is a simple technology and very useful for the production or regeneration of machines. The surface layer is very rough and porous after applying the coating by thermal spraying. In order to obtain the proper surface quality of alloy and composite coatings, after-machining should be used. Many parts of machines strive to achieve an accurate surface. Therefore, a certain roughness is often required. The arithmetic mean of the ordinates of the surface roughness profile was (Ra = 0.16–1.25 μm). The article presents the influence of finishing on the roughness of the surface layer of the coating. After plastic working and machining, the roughness of the surface layer of the coating was reduced. However, it can be seen that, after plastic working, there is a strengthening of the surface layer of the coating and most of the pores were closed.

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“…The tool wear after turning follows on the lot of faces with direct contact with the workpiece which causes the decrement of the tool surface. Issues of tool wear and surface topography after machining are described in many publications [14][15][16][17][18][19][20][21][22][23]. In papers [24][25][26][27] evaluation inserts after turning duplex stainless steel and the effect of flood and cutting fluid MQL were presented.…”

Section: Introductionmentioning

confidence: 99%

The Designation Degree of Tool Wear after Machining of the Surface Layer of Duplex Stainless Steel

Dyl

2021

Materials

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This paper presents problems related to the machining of the surface layer. It is important that steel structures are used in material engineering and machine construction. Austenitic, ferritic, martensitic and two-phase corrosion resistant steel was widely used in the petrochemical and shipbuilding industries. Duplex stainless steel was used in sea water and acid installations. The shafts of centrifugal pumps can be made of stainless steel and are used in acid or seawater pumps. The surface layer of corrosion resistant steel shafts must have a low surface roughness. Machine elements made of stainless steel, and in particular of the duplex type, are difficult-to-cut materials. This article aims to study the effect of parameters on tool life and tool wear. The influence of technological parameters such as depth of cut, cutting speed, feed on maximum value tool wear is presented. The treatment of the surface layer was performed using carbide inserts. The highest wear and the lowest roughness were used as selection criteria. This problem is a significant issue due to the ability of the machine parts for the required reliable operation of devices and machines. To determine the degree of tool wear to increase of the surface layer quality after shaping DSS.

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Finishing of Nickel Matrix Composite Coatings

Cited by 3 publications

References 11 publications

The Experimental and Numerical Research for Plastic Working of Nickel Matrix Composite Coatings

The Experimental and Numerical Research for Plastic Working of Nickel Matrix Composite Coatings

After-Machining Surface Layer of Composite Coatings Obtained by Thermal Spraying

The Designation Degree of Tool Wear after Machining of the Surface Layer of Duplex Stainless Steel

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