Mechanical properties and stress corrosion of electron beam melting through joint of AlMg3 alloy

This paper presents the test results on selection of parameters of electron beam weld-ing of 12 mm thickness sheets of AlMg3 aluminum alloy. The influence of electron beam melting through of sheets on their mechanical properties was tested as well as resistance to stress corrosion cracking and resistance to corrosion in fast sea water flow (10 m/s). The slow strain rate stress corrosion tests in the air and artificial sea water were performed. It was found that electron beam melting through of the AlMg3 alloy does not decrease the mechanical properties in comparison to the native material. AlMg3 alloy melting with electron beam shows a very good stress corrosion resistance.