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Tytuł:
Analysis of the Mechanical Properties of the Titanium Layer Obtained by the Mold Cavity Preparation Method
Autorzy:
Dulska, A.
Szajnar, J.
Król, M.
Powiązania:
https://bibliotekanauki.pl/articles/2049618.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
modular insert
titanium layer
cast iron
SLM
Opis:
The article presents the technology of layered casting with the use of 3D printing to make a frame insert. The insert was made of powdered titanium and then filled with liquid cast iron. The paper presents the results of research, including structure observation and hardness measurements, as well as abrasion resistance tests. The results indicate the possibility of creating a local reinforcement using a frame insert. The resulting casting is characterized by a local increase in hardness and, in addition, an increase in abrasion resistance of the entire surface layer. The quality of the obtained connection depends strongly on the casting parameters.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 1; 51-56
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bimetal Castings with a Titanium Working Layer
Autorzy:
Dulska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/27314148.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
bimetallic castings
layering
3d printing
titanium layer
odlew bimetaliczny
nakładanie warstw
drukowanie 3d
warstwa tytanowa
Opis:
The paper presents the technology of bimetallic castings using the casting method of applying layers directly during the casting process. The bimetallic casting consists of a load-bearing part (typical casting material, i.e. gray cast iron with flake graphite) and a working part (titanium insert). The titanium insert was made by printing using the selective laser melting (SLM) method, and its shape was spatial. The verification of the bimetallic castings was carried out mainly based on metallographic tests, temperature and thickness measurements. Structure examinations containing metallographic microscopic studies with the use of a light microscope (LOM) and a scanning electron microscope (SEM) with microanalysis of the chemical composition (energy dispersive spectroscopy - EDS).The aim of the tests was to select the appropriate geometrical insert parameters for bimetallic castings within the tested range. The correct parameters of both the insert, pouring temperature and the casting modulus affect the diffusion processes and, consequently, the formation of carbides and the creation of bimetallic castings.
Źródło:
Archives of Foundry Engineering; 2023, 23, 2; 21--28
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biocompatibility of oxidized anodically titanium alloys
Autorzy:
Szewczenko, J.
Marciniak, J.
Kajzer, W.
Antonowicz, M.
Nowińska, K.
Powiązania:
https://bibliotekanauki.pl/articles/284542.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
titanium alloys
biocompatibility
surface layer
Źródło:
Engineering of Biomaterials; 2018, 21, 148; 38
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The optical parameters of TiO2 antireflection coating prepared by atomic layer deposition method for photovoltaic application
Autorzy:
Szindler, Marek
Szindler, Magdalena M.
Powiązania:
https://bibliotekanauki.pl/articles/1835965.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
thin film
atomic layer deposition
titanium dioxide
Opis:
Titanium dioxide thin films have been deposited on silicon wafers substrates by an atomic layer deposition (ALD) method. There optical parameters were investigated by spectroscopic ellipsometry and UV/VIS spectroscopy. A material with a refractive index of 2.41 was obtained. Additionally, in a wide spectral range it was possible to reduce the reflection from the silicon surface below 5%. The Raman spectroscopy method was used for structural characterization of anatase TiO2 thin films. Their uniformity and chemical composition are confirmed by a scanning electron microscope (SEM) energy dispersive spectrometer (EDS).
Źródło:
Optica Applicata; 2020, 50, 4; 663-670
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Titanium Nitride Thickness as a Support Layer for Carbon Nanotubes Growth
Autorzy:
Ramli, Muhammad M.
Osman, Nurul H.
Darminto, D.
Abdullah, Mohd Mustafa Al Bakri
Powiązania:
https://bibliotekanauki.pl/articles/2125537.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
titanium nitride
support layer
carbon nanotubes
interconnection
Opis:
The effect of titanium nitride (TiN) thickness as the support layer for carbon nanotubes (CNTs) growth was investigated by depositing three different thicknesses: 20 nm, 50 nm and 100 nm. This TiN support layer was deposited on SiO2 pads before depositing nickel (Ni) as the catalyst material. The Ni distribution on different TiN thicknesses was studied under hydrogen environment at 600°C. Then, the samples were further annealed at 600°C in acetylene and hydrogen environment for CNTs growth. The results show that, the optimum TiN thickness was obtained for 50 nm attributed by the lowest D to G ratio (0.8).
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 3; 963--966
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrochemical Characteristics of Titanium for Dental Implants in Case of the Electroless Surface Modification
Autorzy:
Klimecka-Tatar, D.
Powiązania:
https://bibliotekanauki.pl/articles/356521.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
titanium implant
hosphating
conversion layer
artificial saliva
potentiokinetic curves
Opis:
In the paper the results of research under effect of electroless phosphate coating of titanium dental implants on potentiokinetic polarization characteristic obtained in artificial saliva were presented. On the basis of electrochemical studies it was concluded that the electroless process of phosphating beneficialy effect on corrosion characteristic of titanium determined in solution simulating the oral cavity. Furthermore, the proposed technique of chemical treatment of titanium surface is conducive to the homogeneous development of the surface, which is extremely important from the point of view of titanium implants biointegration. Phosphating treatment affect on the development of surface geometry, resulting in a slight increase in roughness parameters (Ra, Rz and Rmax). The temperature increase of electroless phosphating treatment promotes the rate of conversion layer formation, whereas the effect of temperature of the chemical treatment efficiency is secondary important at longer exposure times (e.g. 45 minutes).
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 2B; 923-926
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of vibratory and rotational shot peening onto selected properties of titanium alloy surface layer
Autorzy:
Zaleski, K.
Zyśko, A
Powiązania:
https://bibliotekanauki.pl/articles/102448.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
shot peening
titanium alloy
surface layer
surface roughness
microhardness
Opis:
This study presents the results of tests on impact of vibratory and rotational shot peening of the Ti6A12Mo2Cr titanium alloy onto the processed object surface roughness and surface layer microhardness. The external surfaces of ring-shaped samples were shot peened. The preceding process consisted of turning with a cubic boron nitride blade knife. Steel beads, having a diameter of 6 mm, were used as a processing medium. The variable parameters of shot peening were vibrator amplitude and shot peening time. The range of recommended technological parameters for vibratory and rotational shot peening was determined. As a result of shot peening, the surface roughness could be reduced by approximately 4 times and the surface layer could be hardened to the depth of approximately 0.4 mm.
Źródło:
Advances in Science and Technology. Research Journal; 2014, 8, 22; 66-70
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicochemical Properties of Oxide ZrO2 Layer Deposited by Sol-Gel Method on Ti-6Al-7Nb Alloy
Autorzy:
Woźniak, A.
Ziębowicz, B.
Ziębowicz, A.
Walke, W.
Powiązania:
https://bibliotekanauki.pl/articles/353184.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Titanium alloy
Sol-gel method
ZrO2 layer
Corrosion test
AFM
Opis:
The paper contains the results of the initial surface treatment influence on the properties of the medical Ti-6Al-7Nb alloy with a modified zirconium oxide layer deposited on its surface by sol-gel method. In the paper, the analysis of results of potentiodynamic studies is presented as well as its resistance to pitting corrosion and electrochemical impedance spectroscopy (EIS), macroscopic observation of the surface of samples and analysis of geometrical structure with the use Atomic Force Microscope (AFM) were performed. The studies were performed on two groups of samples depending on the graduation of the sand used in sandblasted process – 50 μm and 250 μm. Based on the obtained results it can be concluded that the type of the initial surface treatment preceding the surface modification of the Ti-6Al-7Nb has a significant effect on its properties.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 3; 1209-1215
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tribological Characteristic of Titanium Alloy Surface Layers Produced by Diode Laser Gas Nitriding
Autorzy:
Lisiecki, A.
Piwnik, J.
Powiązania:
https://bibliotekanauki.pl/articles/351668.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
titanium alloys
laser gas nitriding
surface layer
wear resistance
ball-on-disk
Opis:
In order to improve the tribological properties of titanium alloy Ti6Al4V composite surface layers Ti/TiN were produced during laser surface gas nitriding by means of a novel high power direct diode laser with unique characteristics of the laser beam and a rectangular beam spot. Microstructure, surface topography and microhardness distribution across the surface layers were analyzed. Ball-on-disk tests were performed to evaluate and compare the wear and friction characteristics of surface layers nitrided at different process parameters, base metal of titanium alloy Ti6Al4V and also the commercially pure titanium. Results showed that under dry sliding condition the commercially pure titanium samples have the highest coefficient of friction about 0.45, compared to 0.36 of titanium alloy Ti6Al4V and 0.1-0.13 in a case of the laser gas nitrided surface layers. The volume loss of Ti6Al4V samples under such conditions is twice lower than in a case of pure titanium. On the other hand the composite surface layer characterized by the highest wear resistance showed almost 21 times lower volume loss during the ball-on-disk test, compared to Ti6Al4V samples.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 2A; 543-552
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Titanium Metal Matrix Composite Surface Layers Produced During Laser Gas Nitriding of Ti6Al4V Alloy by Different Types of Lasers
Autorzy:
Lisiecki, A.
Powiązania:
https://bibliotekanauki.pl/articles/351670.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
titanium alloys
laser gas nitriding
composite surface layer
disk laser
diode laser
Opis:
The article presents the results of a comparative study of the nitriding process of titanium alloy substrate using two lasers with different characteristics of laser beams. One of the applied lasers was a high power diode laser emitting at a dominant wavelength of 808 nm, with a rectangular laser beam spot, and multimode energy distribution across the spot. The second laser was a solid state Yb:YAG disk laser emitting at a wavelength of 1.03 μm, with a circular beam spot, characterized by near Gaussian energy distribution across the spot. In a case of both lasers single stringer beads with a similar width and at similar energy input were produced. As a result of melting of the substrate with a laser beam in a pure gaseous nitrogen atmosphere composite surface layers with in situ precipitated titanium nitrides embedded in the metallic matrix of titanium alloy were produced, in both cases. However, the surface topography and structure is different for the surface layers produce by different lasers at the same processing parameters and width of laser beams.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 1777-1784
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Change in the surface structure and the oxide layer of the Ti6Al4V ELI alloy as a result of mechanical and heat treatment
Autorzy:
Szota, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1537346.pdf
Data publikacji:
2021
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
titanium alloy
oxide layer
alloy strength
stop tytanu
warstwa tlenkowa
wytrzymałość stopu
Opis:
Surface treatment, both mechanical, chemical and thermal causes a number of changes to the external structure of meterial details. The obtained properties are intended to improve the quality of material details made of a given alloy or pure metal. This paper presents the results of mechanical surface treatment to the thickness of the oxide layer after heat treatment of the TU6Al14V ELI alloy. The experiments were performed for a rod with a diameter of 5 mm cut into semicircular slices. The samples were mechanically activated by mechanical treatment of the surface: sandblasting with glass balls for 5 minutes, sanded with 40, 180, 220 and 800 grit sandpaper for 7.5 and 15 minutes. Using an optical microscope, the microstructure of the samples etched with Kroll's solution was assessed and the surface roughness parameters were measured. The next step was to carry out the heat treatment (at the temperature of 550 oC, for 5 hours), and then the roughness parameters and the thickness of the oxide layer were measured using a scanning microscope. The conducted research has shown that mechanical treatment of the surface resulting in an increase in surface development causes an increase in the thickness of the oxide layer formed during heat treatment. However, machining to reduce surface development, such as polishing, reduces the thickness of the oxide layer. The test results can be used to obtain the desired thickness of the oxide layer in the production of elements requiring increased resistance to wear or corrosion.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2021, 2; 12-21
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza porównawcza wpływu modyfikacji powierzchni na wybrane właściwości tytanu i stopu tytanu
A comparative analysis of surface modification influence on selected properties of titanium and titanium alloy
Autorzy:
Surowska, B.
Bieniaś, J.
Powiązania:
https://bibliotekanauki.pl/articles/284179.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
tytan
stop tytanu
warstwa ceramiczna
metoda zol-żel
zużycie
adhezja
titanium
titanium alloy
ceramic layer
sol-gel method
wear
adhesion
Opis:
Modyfikacja powierzchni metali poprzez zastosowanie cienkich warstw ceramicznych jest jedną z nowoczesnych i popularnych metod podwyższania właściwości biomateriałów metalicznych. Artykuł prezentuje możliwości osiągania nowych właściwości tytanu i jego stopu poprzez wytwarzanie złożonych warstw bioceramicznych metodami zol-żel oraz elektroforezy. Jest to krótkie podsumowanie kilkuletnich badań, realizowanych przy współpracy z zespołem badawczym AGH-CM UJ, nad trwałością biomateriałów tytanowych.
The modification of metals surface by thin ceramic layers is one of modern and popular methods of improving properties of metallic biomaterials. The paper presents the possibility of new properties achieved through creating bioceramic composite layers on titanium and titanium alloy by the use of sol–gel and electrophoresis methods. It is the short summary of few years research on durability and biocompatibility of these materials realized in cooperation with AGH - CM UJ research group.
Źródło:
Engineering of Biomaterials; 2010, 13, no. 96-98; 72-76
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The possibility to control the thickness of the oxide layer on the titanium Grade 2 by mechanical activation and heat treatment
Autorzy:
Szota, M.
Łukaszewicz, A.
Machnik, K.
Powiązania:
https://bibliotekanauki.pl/articles/366750.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
titanium alloys
oxide layer
titanium passivation
surface mechanical activation
heat treatment
stopy tytanu
warstwa tlenkowa
pasywacja
mechaniczna aktywacja powierzchni
obróbka cieplna
Opis:
Purpose: The paper presents the results of microstructure, surface development and thickness of the oxide layer on the pure titanium Grade 2 after mechanical activation and heat treatment (550°C/5h). Design/methodology/approach: Studies show that it is possible to control the thickness of the oxide layer by using different materials to change the roughness of surface - mechanical activation before heat treatment. After mechanical activation and heat treatment, the results of the thickness of the oxide layer as well as a level of surface development were obtained, presented and discussed. Findings: The conducted research have proved that mechanical activation of the surface which cause increase of surface development results in greater thickness of oxide layer which is formed during heat treatment. Nevertheless mechanical activation that results in decrease of surface development, such as polishing, results in decrease of oxide layer thickness. Research limitations/implications: The conducted research have showed up that mechanical activation of the surface which cause increase of surface development results in greater thickness of oxide layer which is formed during heat treatment. Nevertheless, mechanical activation that results in decrease of surface development, such as polishing, results in decrease of oxide layer thickness. Practical implications: are possible using similar method for passivation titanium alloys for medical application. Originality/value: The paper presents the possibility of using mechanical preactivation of surface before heat treatment passivation.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2020, 100, 2; 70-77
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza mechaniczno-elektrochemiczna anodowej warstwy wierzchniej na stopie Ti6Al4V ELI
Mechanical and electrochemical analysis of anodic surface layer on titanium alloy Ti6Al4V ELI
Autorzy:
Kierzkowska, A.
Krasicka-Cydzik, E.
Powiązania:
https://bibliotekanauki.pl/articles/284906.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
stop tytanu
warstwa tlenkowa
anodowanie
gięcie
elektrochemia
titanium alloy
anodic layer
anodizing
bending
electrochemistry
Źródło:
Engineering of Biomaterials; 2007, 10, no. 67-68; 25-28
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental investigation of recast layer formation on the surface of Ti-6Al-4V titanium alloy during EDM process (machining carried out at lower range of machining parameters)
Badania wpływu parametrów procesu cięcia elektroerozyjnego na warstwę przetopioną stopu Ti-6Al-4V (przy zastosowaniu małych wartości wyładowań elektrycznych)
Autorzy:
Thesiya, D.
Patel, S.
Powiązania:
https://bibliotekanauki.pl/articles/175849.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
EDM
Ti6Al4V titanium alloy
SEM
recast layer
stop tytanu Ti-6Al-4V
warstwa przetopiona
Opis:
The recast layer forms during the machining of Ti-6Al-4V titanium alloy carried out with a use of electrical discharge machining (EDM). The paper presents the description of EDM process carried out at lower range of machining parameters also the formation process of recast layer. The recast layer was analyzed using scanning electron microscopy and 3D viewer image. The performed experiments involved application of copper and graphite electrode with positive polarity. In order to analyze the results, the authors used design of experiment (DOE) method – Taguchi technique (L18) with mixedlevel design. The influence of peak current (A), servo voltage (V), pulse on time (Ton) and pulse off time (Toff) on the recast layer was described in the article.
W artykule przedstawiono wyniki badań mikrostruktury warstwy przetopionej stopu tytanu Ti-6Al-4V w wyniku cięcia elektroerozyjnego (EDM), w zakresie małych wartości wyładowań elektrycznych z zastosowaniem miedzianej i grafitowej elektrody spolaryzowanej dodatnio. Dokonano analizy badań mikroskopowych przeprowadzonych z użyciem skaningowego mikroskopu elektronowego SEM, stosując zaawansowaną metodę DOE (ang. DOE – Design Of Experiments) wyznaczania wpływu zmiennych wejściowych na wynik analizowanego procesu. Wyznaczono wpływ parametrów prądowych – napięcia, czasu włączenia i wyłączenia układu na jakość warstwy przetopionej stopu tytanu.
Źródło:
Advances in Manufacturing Science and Technology; 2014, 38, 4; 53-59
0137-4478
Pojawia się w:
Advances in Manufacturing Science and Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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