PENGARUH METODE PENGELASAN PADA BAHAN AA5083 TERHADAP LAJU KOROSI DAN KEKUATAN IMPAK

The mixture of aluminum 5xxx series is currently widely used in marine construction applications for the manufacture of chemical tankers, ofshor etc., Because it has good corrosion resistance, the purpose of this study is to determine the effect of welding methods on corrosion rate and impact strength on aluminum 5083. which is connected with the metasl arc welding (GMAW) welding method with welding temperature variations of 50ºC, 150ºC and 250ºC. The results of the welding were tested for strength with the Charpy Impact method and the corrosion rate was tested by the 3-Electrodes Corrosion Tester method. The results of this study are the first strenght of the highest impact values with variations in welding temperature of 250 ºC. and the impact value is 67.5 kg (m / mm2). Second, the highest corrosion resistance was obtained at a temperature of 250ºC with a corrosion rate of 0.1593 mmPY. The best welding results to resist corrosion rate and have good strenght is the use of a temperature of 250 ºC