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    Tytuł:
    Corrosion properties of 1.4512 ferritic and 1.4404 austenitic steels for the automotive industry
    Autorzy:
    Zatkalíková, Viera
    Markovičová, Lenka
    Wróbel-Knysak, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/88716.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    corrosion
    ferritic stainless steel
    austenitic stainless steel
    cyclic potentiodynamic test
    exposure test
    stal ferrytyczna odporna na korozję
    stal austenityczna
    test potencjodynamiczny
    test ekspozycji
    Opis:
    Exhaust systems are susceptible to in-service wear because of their exposition to the very aggressive corrosive environment. Various stainless steels grades (mostly ferritic and austenitic, but also martensitic and duplex) and protective coatings are currently used for exhaust system elements to increase their aestetics and corrosion resistance. This article focuses on evaluation and comparison of the common corrosion properties of two stainless steels with different microstructures (ferritic and austenitic) used for exhaust system components at the low ambient temperature (35 °C). An aggressive acidic corrosion solution for electrochemical cyclic potentiodynamic tests (ASTM G61) was chosen to simulate partly inner (condensate) and also external environment (reaction of exhaust gases with water, chlorides in solution after winter road maintenance). Exposure tests of the pitting corrosion resistance were performed according to ASTM G48 standard method.
    Źródło:
    System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 745-752
    2657-5450
    Pojawia się w:
    System Safety : Human - Technical Facility - Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Grinding of stainless steel X6CrNiMoTi and its final roundness
    Autorzy:
    Naprstkova, N.
    Novak, M.
    Cais, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/111954.pdf
    Data publikacji:
    2014
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    roughness
    analyses
    stainless steel
    grinding
    chropowatość
    analiza
    stal nierdzewna
    szlifowanie
    Opis:
    Machining of stainless steels is often an important technology used in production. Products made from these materials are very often used in mechanical engineering, and quality of work-piece surface after machining respective grinding is one of the important parameters that to us speak about the quality of the machining process. One of these parameters that can to give evidence about the quality of the surface is for rotating part the roundness. Its measurement is one of the important sources of information about how cutting conditions can affect the quality of the machined surface. The paper deals with the influence of cutting conditions when grinding steel X6CrNiMoTi (EN ISO) on the roundness of a machined surface.
    Źródło:
    Production Engineering Archives; 2014, 5, 4; 18-21
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Corrosion effect of 65% Nitrate acid on X4CrNi1812 at 333 K
    Autorzy:
    Lipiński, Tomasz
    Karpisz, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/104158.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    steel
    stainless steel
    corrosion
    corrosion rate
    roughness
    stal
    stal nierdzewna
    korozja
    szybkość korozji
    chropowatość
    Opis:
    Austenitic stainless steels are often used for a materials in the construction of machines and equipment for agricultural and for industrial construction. One of the most important factors constructional material is corrosion resistance. Equipment with austenitic stainless steel can be easy join by quickly welding at a not to high construction price, but one with the serious problem in aggressive environment is their corrosion resistance. A few corrosion processes in crevices and awkward corners can be avoided at the design stage (low roughness parameters, round-section and other). But still the construction material is exposed to corrosion. These steels often come into contact with an aggressive environment based on nitric acid. The main aim of this research is to investigate corrosion resistance in different time (48, 96, 144, 192, 240, 288, 336 hours). For this used weight loss of test samples and its profile roughness. The research was conducted on austenitic stainless steel in grade in Nitrate acid at 333 K. Corrosion tests confirmed that the research this steel in 65% nitrate acid as a corrosive environments is characterized through proportionate to time corrosion process whose measure may be surface roughness. In industrial practice roughness parameters for all the research times can be used for determine the stage and size of steel corrosion.
    Źródło:
    Quality Production Improvement - QPI; 2019, 1, 1; 425-432
    2657-8603
    Pojawia się w:
    Quality Production Improvement - QPI
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of corrosion rate of X55CrMo14 stainless steel at 65% nitrate acid at 348 K
    Autorzy:
    Lipiński, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/1839535.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    stal
    stal nierdzewna
    korozja
    szybkość korozji
    profil chropowatości
    steel
    stainless steel
    corrosion
    corrosion rate
    profile roughness
    Opis:
    A number of factors determine the mechanical, but also physical and chemical properties. One of the most important are the steel microstructure and its working conditions. A few corrosion processes in crevices and awkward corners can be avoided at the design stage (low roughness parameters, roundsection and other). But still the construction material is exposed to corrosion. These steels often come into contact with an aggressive environment based on nitric acid. Stainless steel is more and more often used in many sectors of industry. The purpose of this article is to investigate corrosion resistance in different time (48, 96, 144, 192, 240, 288, 336, 384 and 432 hours) using weight loss and profile roughness parameters of martensitic steel in grade X55CrMo14 in nitric acid 65% pure-basic at temperature 348 K. Corrosion tests show that the tested steel in nitric acid as a corrosive environments is characterized through continuous corrosion process whose measure may be surface roughness.
    Źródło:
    Production Engineering Archives; 2021, 27, 2; 108-111
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of plastic deformation on the magnetic properties of selected austenitic stainless steels
    Autorzy:
    Orsulova, T.
    Palcek, P.
    Kudelcik, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/112078.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    plastic deformation
    austenite
    stainless steel
    magnetic properties
    odkształcenia plastyczne
    austenit
    stal nierdzewna
    właściwości magnetyczne
    Opis:
    Austenitic stainless steels are materials, that are widely used in various fields of industry, architecture and biomedicine. Their specific composition of alloying elements has got influence on their deformation behavior. The main goal of this study was evaluation of magnetic properties of selected steels, caused by plastic deformation. The samples were heat treated in different intervals of temperature before measuring. Then the magnetic properties were measured on device designed for measuring of magnetism. From tested specimens, only AISI 304 confirmed effect of plastic deformation on the magnetic properties. Magnetic properties changed with increasing temperature.
    Źródło:
    Production Engineering Archives; 2017, 14; 15-18
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Traverse Grinding of X6CrNiMoTi Steel and its Final Surface Quality for Giving Cutting Conditions
    Autorzy:
    Naprstkova, N.
    Novak, M.
    Hricova, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/111600.pdf
    Data publikacji:
    2015
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    grinding
    surface quality
    stainless steel
    cutting conditions
    szlifowanie
    jakość powierzchni
    stal nierdzewna
    warunki skrawania
    Opis:
    Machining of stainless steels is often an important used technology. Products made from these materials are often used in mechanical engineering and the quality of workpiece surface roughness after machining respective grinding is one of the important parameters that illustrates the quality of the machining process. This paper deals with the influence of cutting conditions when grinding steel X6CrNiMoTi (EN ISO) on the machined quality surface (roughness, circularity). Grinding of samples was carried out by feed grinding and the measured values were analyzed. On the machined samples parameters were all monitored and measured in the laboratory of precision measurements at the Faculty of Production Technology and Management of Jan Evangelista Purkyně University in Ústí nad Labem and the devices Hommel tester T1000 and Hommel tester Form 1000 were used. Measuring was done according to ČSN EN ISO 4287.
    Źródło:
    Production Engineering Archives; 2015, 7, 2; 49-52
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fatigue strength improvement of the AISI 316Ti austenitic stainless steel by shot peening
    Autorzy:
    Novy, F.
    Dundekova, S.
    Bokuvka, O.
    Trsko, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/111990.pdf
    Data publikacji:
    2014
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    stainless steel
    AISI 316L
    shot peening
    fatigue strength
    stal nierdzewna
    śrutowanie
    wytrzymałość na zmęczenie
    Opis:
    Stainless steels are structural materials used for a wide range of applications. One of the fields of application of these highly corrosion resistant materials is for various medical applications. Different methods of mechanical property improvement have been studied in recent years to increase the durability of components manufactured from these materials. The main goal of this study was an analysis of fatigue strength improvement of the AISI 316Ti austenitic stainless steel by shot peening. A significant improvement of surface hardness, yield strength and fatigue limit by shot peening was observed in this study. This is despite increasing the surface roughness which usually degrades material’s fatigue strength.
    Źródło:
    Production Engineering Archives; 2014, 4, 3; 2-6
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Corrosion behavior of Cr-Ni-Mo stainless steel in chemically modified chloride solution
    Autorzy:
    Zatkalíková, Viera
    Markovičová, Lenka
    Štrbák, Milan
    Powiązania:
    https://bibliotekanauki.pl/articles/34670831.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    austenitic stainless steel
    pitting corrosion resistance
    inorganic inhibitor
    stal austenityczna nierdzewna
    odporność na korozję wżerową
    inhibitor nieorganiczny
    Opis:
    Cr-Ni-Mo stainless steels are susceptible to the pitting in aggressive chloride environments. One of the possible ways for the influence of their corrosion behavior is the use of inhibitors as the chemical modification of the environment. The resistance of AISI 316Ti stainless steel to the pitting with/without the inorganic inhibitor was tested by two independent corrosion tests: 24-hours exposure immersion and potentiodynamic polarization test. Both tests were carried out in 1M chloride acidic solution with/without 0.1M molybdate inhibitor at room temperature. Results of immersion tests were evaluated by the corrosion rates calculated from corrosion losses and by the morphology of the pitting. Potentiodynamic polarization curves were evaluated by the pitting potentials.
    Źródło:
    Quality Production Improvement - QPI; 2021, 3, 1; 299-304
    2657-8603
    Pojawia się w:
    Quality Production Improvement - QPI
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling and optimization of friction stir stitching of AISI 201 stainless steel via Box-Behnken design methodology
    Autorzy:
    Ojo, Olatunji Oladimeji
    Obasha, Isaac Ojo
    Powiązania:
    https://bibliotekanauki.pl/articles/23966629.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    ścierny ścieg mieszany
    projekt eksperymentalny
    stal nierdzewna
    modelowanie
    optymalizacja
    friction stir stitching
    experimental design
    stainless steel
    modeling
    optimization
    Opis:
    The paper investigates the modelling and optimization of the notch-repaired/friction stir stitched AISI 201 stainless steel welds via the use of a non-consumable tool-based repair process. The repair process employs a sequential hopping-stitching approach. This approach involves the application of two intercepted and completely overlapped plunging actions of a probe-less titanium carbide tool to create an effective refilling and repair of the notched zone. Box-Behnken design (BBD) was employed for the experimental planning, modelling, and optimization of the notch-repair process. Tool rotational speed, penetration depth and dwell time of the tool were the studied process parameters while tensile strength was the response variable. A quadratic model was identified as the best model for the notch-repaired welds based on the combination of a low sequential P-value of 0.008216, a high lack of fit P-value of 0.931366, and a close to unity adjusted and predicted R-square values. The process parameter and their interaction effects on the tensile strength of the repaired notch were identified via the ANOVA analysis. Plunge depth (main effect) and interaction effect of tool rotational speed and dwell time had significant influences on the notch-repair process and the resultant tensile strength of the AISI 201 stainless steel. The visual representations of these effects were shown through the 2D elliptical contour and 3D response surface plots. The optimized process parameters were identified as 1215.9795 rpm, 0.40262212 mm, and 5.98706376 s while the resultant notch-repaired joint yielded a tensile strength of 886 MPa, which is close to the predicted value.
    Źródło:
    Production Engineering Archives; 2022, 28, 2; 132--140
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Local corrosion of AISI 304 stainless steel in acidic chloride solution
    Autorzy:
    Zatkalíková, Viera
    Markovičová, Lenka
    Hanusová, Patrícia
    Powiązania:
    https://bibliotekanauki.pl/articles/104041.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    austenitic stainless steel
    pitting corrosion
    exposure test
    cyclic potentiodynamic test
    direction of rolling
    austenityczna stal nierdzewna
    korozja wżerowa
    próba narażenia
    cykliczna próba potencjodynamiczna
    kierunek walcowania
    Opis:
    AISI 304 austenitic stainless steel is recommended and used for various applications in industry, architecture and medicine. Presence of halides in environment evokes a possibility of the local corrosion which limits seriously exploitation of this material in aggressive conditions. The presented paper is focused on the pitting corrosion resistance (“as received” steel surface) in 1M chloride solution (pH=1.2) at a common (20 °C) and an elevated (50 °C) ambient temperatures. 24-hours exposure immersion test (ASTM G48) and cyclic potentiodynamic test (ASTM G61) are used as the independent test methods. The exposure immersion test is carried out with cross-rolled and longitudinally rolled specimens and the effect of direction of rolling on the resistance to pitting is studied.
    Źródło:
    Quality Production Improvement - QPI; 2019, 1, 1; 268-275
    2657-8603
    Pojawia się w:
    Quality Production Improvement - QPI
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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