Influence of microalloying additions on Al-Mg alloy. Part 2: Phase analysis and sensitization behaviour

Nazatul Sukiman; R. K. Gupta; R. Zhang; Rudolph G Buchheit; N. Birbilis

doi:10.1179/1743278213Y.0000000129

Influence of microalloying additions on Al-Mg alloy. Part 2: Phase analysis and sensitization behaviour

Nazatul Sukiman, R. K. Gupta, R. Zhang, Rudolph G Buchheit, N. Birbilis

Materials Science & Engineering

Research output: Contribution to journal › Article › Research › peer-review

35 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	263-268
Number of pages	6
Journal	Corrosion Engineering Science and Technology
Volume	49
Issue number	4
DOIs	https://doi.org/10.1179/1743278213Y.0000000129
Publication status	Published - 2014

Keywords

Alloying
Aluminium
Aluminium alloys
Intergranular corrosion
Sensitisation

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10.1179/1743278213Y.0000000129

Cite this

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AU - Buchheit, Rudolph G

AU - Birbilis, N.

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Influence of microalloying additions on Al-Mg alloy. Part 2: Phase analysis and sensitization behaviour

Abstract

Keywords

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