Wybrane właściwości i mikrostruktura złącza ze stopu tytanu spawanego wiązką elektronów *

STRESZCZENIE: W artykule przedstawiono badania mikrostruktury oraz właściwości i parametrów technicznych spoin wykonanych metodą spawania wiązką elektronową (EBW). Spawanie wiązką elektronową jest procesem łączenia odpowiednim zwłaszcza w przypadku tytanu i innych materiałów podatnych na utlenianie, ponieważ musi się odbywać w próżni. Kwalifikacji spoiny pod względem integralności połączenia dokonano na podstawie badania właściwości mechanicznych i oceny mikrostruktury. Mikrotwardość spoiny zmierzono urządzeniem Matsuzawa-Vickers MX 100 – zastosowano obciążenie 100 G (0,98 N). Do zbadania mikrostruktury i określenia wielkości poszczególnych stref przegubowych użyto mikroskopu Nikon Eclipse MA200.

SŁOWA KLUCZOWE: spawanie wiązką elektronów, mikrostruktura, mikrotwardość

ABSTRACT: The paper presents microstructure investigations as well as properties and technical parameters of welds made using the electron beam welding method (EBW). Electron beam welding is a bonding process, especially suitable in the case of titanium and other oxidation-sensitive materials, because it must be carried out in a vacuum. Integrity of the joint was determined on the basis of mechanical properties and microstructure evaluation. The micro-hardness of the weld was measured with the Matsuzawa-Vickers MX 100 – a load of 100 G (0.98 N) was used. Nikon Eclipse MA200 microscope was used to examine the microstructure and determining the size of individual articulation zones.

KEYWORDS: electron beam welding, surface engineering, microstructure, microhardness

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DOI: https://doi.org/10.17814/mechanik.2017.11.183