TY - JOUR
T1 - Influence of microalloying additions on Al-Mg alloy. Part 2
T2 - Phase analysis and sensitization behaviour
AU - Sukiman, N. L.
AU - Gupta, R. K.
AU - Zhang, R.
AU - Buchheit, R. G.
AU - Birbilis, N.
PY - 2014/6
Y1 - 2014/6
N2 - A range of alloys based on the Al-4Mg-0.4Mn system were produced with selected quaternary microalloying additions. In Part 1 of this study, the electrochemical and corrosion response was studied. To characterise the sensitisation behaviour of these alloys, where sensitisation is the major mode of degradation of 5xxx alloys, heat treatment at 150°C was carried out and followed by the Nitric Acid Mass Loss Test (NAMLT) according to ASTM G67-04. Herein the alloying elements studied include silicon, zinc, titanium, zirconium and strontium. The results indicate that strontium (Sr), silicon (Si) and titanium (Ti) have a significant influence in reducing intergranular corrosion (IGC) susceptibility.
AB - A range of alloys based on the Al-4Mg-0.4Mn system were produced with selected quaternary microalloying additions. In Part 1 of this study, the electrochemical and corrosion response was studied. To characterise the sensitisation behaviour of these alloys, where sensitisation is the major mode of degradation of 5xxx alloys, heat treatment at 150°C was carried out and followed by the Nitric Acid Mass Loss Test (NAMLT) according to ASTM G67-04. Herein the alloying elements studied include silicon, zinc, titanium, zirconium and strontium. The results indicate that strontium (Sr), silicon (Si) and titanium (Ti) have a significant influence in reducing intergranular corrosion (IGC) susceptibility.
KW - Alloying
KW - Aluminium
KW - Aluminium alloys
KW - Intergranular corrosion
KW - Sensitisation
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U2 - 10.1179/1743278213Y.0000000129
DO - 10.1179/1743278213Y.0000000129
M3 - Article
AN - SCOPUS:84901446388
SN - 1478-422X
VL - 49
SP - 263
EP - 268
JO - Corrosion Engineering Science and Technology
JF - Corrosion Engineering Science and Technology
IS - 4
ER -