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.
Highlights
The paper presents microstructure investigations as well as properties and technical parameters of welds made using the electron beam welding method (EBW)
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
Summary
W pracach eksperymentalnych używano urządzenia do spawania wiązką elektronową firmy TECHMETA NC. Stopień próżni w komorze urządzenia wynosił 10–4 Pa, a parametry wiązki elektronów były następujące: natężenie prądu – 40 mA, napięcie przyspieszające – 40 kV. Po wykonaniu złączy spawanych przygotowano próbki do badań metalograficznych (zgłady wykonano według standardowych procedur metalograficznych stosowanych w przypadku stopów tytanu). Do obserwacji zgładów metalograficznych spoin wykorzystano mikroskop metalograficzny Nikon Eclipse MA200 z systemem analizy obrazu NIS 4.20 oraz mikroskop skaningowy SEM JEOL JSM 7100 z mikrosondą elektronową OXFORD X-MAX. Przygotowanie zgładów spoin obejmowało: przecięcie spoiny, zainkludowanie w żywicy, polerowanie i trawienie.
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