Temat: erosion wear resistance - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Testing of flame sprayed Al2O3 matrix coatings containing TiO2
Autorzy:: Czupryński, A.
Górka, J.
Adamiak, M.
Tomiczek, B.
Powiązania:: https://bibliotekanauki.pl/articles/356108.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: flame spray process
coating
ceramic powder
abrasive wear resistance
erosion wear resistance
adhesion strength
Opis:: The paper presents the results of the properties of flame sprayed ceramic coatings using oxide ceramic materials coating of a powdered aluininiuni oxide (Al₂O₃) matrix with 3% titanium oxide (TiO₂) applied to unalloyed S235JR grade structural steel. A primer consisting of a metallic Ni-Al-Mo based powder has been applied to plates with dimensions of 5X200X300 mm and front surfaces of ø40x50 mm cylinders. Flame spraying of primer coating was made using a RotoTec 80 torch, and an external coating was made with a CastoDyn DS 8000 torch. Evaluation of the coating properties was conducted using metallographic testing, phase composition research, measurement of microhardness, substrate coating adhesion (acc. to EN 582:1996 standard), erosion wear resistance (acc. to ASTM G76-95 standard), and abrasive wear resistance (acc. to ASTM G65 standard) and thermal impact. The testing performed has demonstrated that flame spraying with 97% Al₂O₃ powder containing 3% TiO₂ performed in a range of parameters allows for obtaining high-quality ceramic coatings with thickness up to ca. 500 μni on a steel base. Spray coating possesses a structure consisting mainly of aluminium oxide and a small amount of NiAl₁₀O₁₆ and NiAl₃₂O₄₉ phases. The bonding primer coat sprayed with the Ni-Al-Mo powder to the steel substrate and external coating sprayed with the 97%Al₂O₃ powder with 3% TiO₂ addition demonstrates mechanical bonding characteristics. The coating is characterized by a high adhesion to the base amounting to 6.5 MPa. Average hardness of the external coating is ca. 780 HV. The obtained coatings are characterized by high erosion and abrasive wear resistance and the resistance to effects of cyclic thermal shock.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 3; 1363-1370
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The properties of thermal sprayed aluminium coatings on non-alloy structural steel
Autorzy:: Czupryński, A.
Powiązania:: https://bibliotekanauki.pl/articles/366927.pdf
Data publikacji:: 2019
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: flame-powder spraying
wire arc spraying
non-alloy structural steel
erosion wear resistance
adhesion strength
impact wear
natryskiwanie płomieniowo-proszkowe
natryskiwanie łukowe
stal niestopowa
stal konstrukcyjna
zużycie erozyjne
zużycie ścierne
wytrzymałość adhezyjna
ścieralność
Opis:: Purpose: of this paper was comparison of the structure, hardness and erosive wear of aluminium coatings produced on non-alloy structural steel S355JR (EN 10025-2) using the powder flame spraying and wire arc spraying methods. Design/methodology/approach: The latest model of flame powder sprayer and wire arc sprayer was used in the experiments. This provided very reliable spraying conditions. The additional material for flame-spraying was of Metco 54NS-1 pure aluminium powder (EN AW 1100 series). In the arc spraying process the Metco Aluminium (EN AW 1100 series) 1.6 mm diameter pure aluminium thermal spray wire was used. In each spraying technology binding alloy, i.e. Ni-Al, was employed as a primer coating. The used spray processes produced dense, abrasion and erosion resistant coatings approximal 1.0 mm thick. Aluminium coatings were characterized in accordance with ASTM G 76-95 erosion resistance tests, ASTM C 633-01 adhesion strength, HV 0.1 hardness tests and metallographic analyses. The scope of research included: preparation material for spraying, selection of properly process parameters for each sprayed technique based on preliminary technological tests, coatings manufacturing, examining the structure and tribological properties of aluminium coatings, comparison of obtained samples. Findings: The obtained results have proven superior properties of arc sprayed aluminium material coatings and have shown to be promising in industrial applications. Research limitations/implications: The presented test results are a preliminary assessment of the properties of thermally sprayed aluminium coatings. Therefore, further research is required regarding the resistance of aluminium coatings to abrasion and corrosion. Practical implications: The study is focused on selecting the best and most economical technique for manufacturing of wear and corrosion resistance aluminium coatings with a thickness of approximately 1 mm. Originality/value: It has been demonstrated that the use of a Ni-Al primer coating improves the adhesion of flame and arc sprayed aluminium coatings to steel surfaces.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2019, 95, 2; 64-73
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The effect of carbon and chromium on wear resistance of ferritic high chromium cast alloys
Wpływ zawartości węgla i chromu na odporność na zużycie ferrytycznych wysokochromowych stopów odlewniczych
Autorzy:: Drotlew, A.
Bieńko, G.
Powiązania:: https://bibliotekanauki.pl/articles/258000.pdf
Data publikacji:: 2006
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:: ferrytyczny wysokochromowy stop odlewniczy
odporność na zużycie
węgiel
chrom
zawartość
teoria Bittera
erosion abrasive wear resistance
ferritic high chromium cast alloy
Bitter theory
Opis:: The studies of abrasion wear behaviour have as a target more profound knowledge of the wear mechanism and of the possibilities to improve the wear resistance. As regards an improvement of wear resistance, the results of the studies enable: simple comparison of the material properties, a description, by means of regression egratrans, of a space determined by the scope of variables used, as well as, an application of the selected theory in describing final output of the tests. Applying Bitter's theory, the wear of high-chromium ferritic alloys attacked by an abrasive material at 450oC was described. The theory enables the material wear rate to be analyzed as a function of the incidence angle of abrasive, with the material loss in volume ascribed separately to the two different wear mechanisms, i.e. microcutting and surface fatigue. Analysis leads to a conclusion that the characteristic curves can be divided into three groups. The division can be made adopting as a point of reference two curves for which the value of the product of Cr and C content is constant. For the first group the product does not exceed the value of 30. Group three includes the alloys for which the product of Cr and C content exceeds in this case the value of 60. For the second group of alloys, the product of chromium and carbon content is within the range of 30 to 60.
Artykuł dotyczy analizy mechanizmów ściernego zużycia erozyjnego oraz możliwości podniesienia odporności na ścieranie. Autorzy opisali procesy zużycia ferrytycznych stopów wysokochromowych, zachodzących pod wpływem materiału ściernego w temperaturze 450°C. Zaprezentowano wyniki, przeprowadzonej przy wykorzystaniu teorii Bittera, analizy intensywności zużycia materiału, prowadzącej do konkluzji, że odporność na zużycie można klasyfikować w oparciu o uzyskane krzywe charakterystyczne, wśród których autorzy wyróżnili i opisali trzy grupy.
Źródło:: Problemy Eksploatacji; 2006, 1; 45-54
1232-9312
Pojawia się w:: Problemy Eksploatacji
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The effect of NI-TIO₂ and NI-TIO₂-graphene coatings and heat treatment hardening on solid particles erosion resistance of grade 410 stainless steel
Autorzy:: Khalid, Wissam
Al-Tameemi, Hamza A.
Powiązania:: https://bibliotekanauki.pl/articles/38912091.pdf
Data publikacji:: 2023
Wydawca:: Instytut Podstawowych Problemów Techniki PAN
Tematy:: solid particles erosion
wear rate
wear resistance
erosion testers
AISI 410 stainless steel
Ni-TiO2 coating
Ni-TiO2-graphene coating
Opis:: Erosion by solid particles is a serious problem in many applications, especially in rotary machines with steel blades. Many coatings are currently being developed to improve erosion resistance. This study focuses on investigating the solid particles erosion (SPE) resistance of AISI 410 stainless steel and improving the SPE resistance using three different anti-wear techniques: hard coating (Ni-TiO₂), hard coating with low shear resistance (Ni-TiO₂-graphene) and hardening by heat treatment. The study also investigates the effect of different factors, including impact angle, jet pressure (particle speed) and solid particle type on each of the four types of specimens. The investigated anti-wear techniques improved the erosion wear rate by different percentages, such as 35.2% using Ni-TiO₂ coating, 36% using Ni-TiO₂-graphene, and 53.75% using heat-treatment when silica sand, a 45◦ impact angle and a speed of 36.72 m/s were used. The results indicate a ductile erosion mechanism as the weight loss decreases with an increase in the impact angle. The investigated coatings were found to provide more stable erosion resistance under different impact angles. Surface roughness was reduced after SPE for coated surfaces, and surfaces showing a lower wear rate may not necessarily show less change in surface roughness. It was observed that deformation in the form of waviness only occurs when the surface is impacted by small rounded particles at a 45◦ angle. Wear rate parameters were calculated, which can be used to estimate the wear rate for the investigated material under various conditions.
Źródło:: Engineering Transactions; 2023, 71, 4; 571-593
0867-888X
Pojawia się w:: Engineering Transactions
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Analiza systemów wykorzystywanych w badaniach uderzeniowego zużycia erozyjnego
The analysis of the systems used for testing the impact erosion wear
Autorzy:: Zbrowski, A.
Mizak, W.
Powiązania:: https://bibliotekanauki.pl/articles/256917.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:: erozja
badanie zużycia erozyjnego
stanowisko badawcze
odporność na ścieranie
erosion
erosion wear testing
testing stand
resistance to scrubbing
Opis:: W artykule zaprezentowano przegląd metod i systemów stosowanych w badaniach zużycia erozyjnego wywoływanego uderzeniowym oddziaływaniem cząstek erodenta na powierzchnię. W analizie uwzględniono rozwiązania bazujące na wytycznych normatywnych oraz oryginalne rozwiązania nieobjęte normami. Przedstawiono metody badań oraz wybrane przykłady rozwiązań praktycznych aparatury badawczej.
The article presents the review of the methods and systems used for research on the erosion wear caused by the impact effect of the erosive particles on the surface. The analysis considers the solutions based on the standard definitions and original solutions not included in the standards. The research methods were presented as well as selected examples of practical solutions of research apparatus.
Źródło:: Problemy Eksploatacji; 2011, 3; 235-250
1232-9312
Pojawia się w:: Problemy Eksploatacji
Dostawca treści:: Biblioteka Nauki

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