PENGARUH JENIS ACTIVATED FLUX DAN VARIASI KUAT ARUS PADA PENGELASAN A-TIG DISSIMILAR MATERIAL TERHADAP KEDALAMAN PENETRASI, KEKERASAN, STRUKTUR MIKRO DAN LAJU KOROSI

The TIG welding process has shallow penetration. addition of activated flux can increase the depth penetration weld, which is called A-TIG welding, so this study to analyze effect type and current on penetration, hardness, microstructure, corrosion rate. This used SUS 304 A36 materials with a thickness 6 mm are welded using variations Fe2O3, Cr2O3 in strength 100 amperes 120 amperes. To find out results these variations, was tested by macro, rate tests. resulted 3.6 found Fe2O3 value 2.43 Then highest hardness 471.48 HVN, lowest ampere 398.16.HVN. micro test phase change from pearlite, ferrite, austenite martensite weld metal. And 0.24931 mm/year, 0.090114 mm/year.