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Wyszukujesz frazę "penetration testing" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Material factors in relation to development time in liquid-penetrant inspection. Part 3. Testing of model plates
    Autorzy:
    Irek, P.
    Słania, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/356491.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    imperfection
    defect
    penetration testing
    adhesion
    Opis:
    The paper is the continuation of the previous ones entitled „Material factors in relation to development time in liquid-penetrant inspection. Part 1. Material factors“ and „Material factors in relation to development time in liquid-penetrant inspection. Part 2. Investigation programme and preliminary tests“ in which material factors influencing essentially the development time in penetrant testing as well as the range of their values have been specified. These factors are: material kind, surface roughness and imperfection width. In the paper it has been described how far the development time in colour penetrant testing is influenced by an individual material factor. Moreover, it has been presented the equation being the function of material factors and development time.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 41-49
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Material Factors in Relation to Development Time in Liquid-Penetrant Inspection. Part 1. Material Factors
    Autorzy:
    Irek, P.
    Słania, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/351076.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    imperfection
    defect
    penetration testing
    adhesion
    Opis:
    In technical publications and European Standards the development time (i.e. time of getting out of penetrant from a discontinuity to the material surface) in penetration testing is specified within the range of 10-30 minutes. In practice, however, it is seen , that it is closely connected with the material type and ranges from several minutes to 24 hours. In the literature, only interactions coming from the penetrant are described, whereas those from the material under testing, i.e. the influence of material factors on adhesion between penetrant and material, are not taken into consideration. In this connection, it has been described precisely in the paper the adhesion phenomenon and also it has been indicated the other factors affecting the development time. Recapitulating the adhesion theories presented in the paper, it can be formulated two fundamental circumstances which must occur that adhesion joint may be formed, namely: the approach of the particles of two solids to the distance less than 0,9 nm while the high attractive force occurring between molecules should be connected with possibly low potential energy of the bond formed in this way.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2A; 509-514
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Material Factors in Relation to Development Time in Liquid-Penetrant Inspection. Part 2. Investigation Programme and Preliminary Tests
    Autorzy:
    Irek, P.
    Słania, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/353038.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    imperfection
    defect
    penetration testing
    adhesion
    Opis:
    The paper is the continuation of the previous one entitled “Material factors in relation to development time in liquid-penetrant inspection. Part 1. Material factors” in which the material factors influencing essentially the development time in penetrant testing have been marked out. These are: type of material, surface roughness and imperfection width. In the paper it has been described how to prepare the factorial plan which will enable to test every factor with taking into account its different values. Moreover, it has been presented investigations on natural cracks, their width and roughness profile what will allow to assign suitable values of independent variables to the factorial plan. The purpose of the plan prepared in such a way will be the determination of the influence of the material kind, surface roughness and discontinuity width on the development time in penetrant testing.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 3; 1697-1708
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification of Lack of Fusion and Incomplete Penetration in Butt Weld Joint by Ultrasonic Phased Array Method and X-Ray Method
    Autorzy:
    Koňár, R.
    Mičian, M.
    Boháčik, M.
    Gucwa, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/357016.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    internal defects
    butt weld joint
    nondestructive testing
    lack of fusion
    incomplete penetration
    Opis:
    The main goal of the article is to identify artificially created defects like lack of fusion and incomplete penetration in buttweld joint using non-destructive volumetric methods. These defects are the most serious defects in welds of steel constructionsfrom the safety point of view. For identification, an ultrasonic phased array technique and a conventional X-ray using digital imaging were used. The theoretical part of the article describes the current state of the given issue and provides basic theoretical knowledge about ultrasonic and X-ray welding tests. In the experimental part, the procedure and results of testing butt weld joint are described by both non-destructive methods. The butt weld joint was made from steel S420MC. Each indication obtained by the ultrasonic and x-ray technique is supplemented by the macrostructure of the weld taken from the indication position. The results of the experimental work mentioned in the article point to the possibility and reliability of the identification of melting defects by selected nondestructive methods in terms of their character and orientation.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 3; 1117-1124
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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