Ingenieurwissenschaften und zugeordnete Tätigkeiten
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- Cracking mechanism (1) (entfernen)
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Cracking mechanism is proven to be liquid metal embrittlement. Method is suitale for Determination of LME susceptibility. Formation of LME is highly dependent on temperature fields, influenced by wlding curren (high influence) and electrode wear (low influence). Hot-dip galvanized material causes highest electrode wear - potentially beneficial in combination with low welding currents (lower current density) regarding LME. Other methods to reduce current density like Change of electrode cap shape may be beneficial. Critical loadcases are between 50% and 60% of the material's yield strength (valid only for tested materials, coatings and the Parameter choices). -> Only externally applied tensile stress is known