کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1610716 1516281 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Sc and Zr additions on corrosion behaviour of Al–Zn–Mg–Cu alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effect of Sc and Zr additions on corrosion behaviour of Al–Zn–Mg–Cu alloys
چکیده انگلیسی


• Additions of Sc and Zr can inhibit the recrystallization of Al–Zn–Mg–Cu alloys.
• Corrosion resistance is increased by the introduction of Sc and Zr.
• Find the relationship between recrystallization and corrosion behaviour.
• Increase of resistance is due to the discontinued distribution of η phases.

In this paper, the relationship between recrystallization and corrosion behaviour of Al–Zn–Mg–Cu alloys has been investigated. The additions of Sc and Zr inhibited the recrystallization of Al–Zn–Mg–Cu alloys remarkably. Intergranular corrosion, exfoliation corrosion, stress corrosion cracking and electrochemical properties of Al–Zn–Mg–Cu alloy and Al–Zn–Mg–Cu–Sc–Zr alloy under peak-aged treatment have been studied. Results show that the additions of Sc and Zr to Al–Zn–Mg–Cu alloy can improve the corrosion resistance observably due to the inhibition of recrystallization behaviour. The spacing of grain boundary precipitates Al–Zn–Mg–Cu–Sc–Zr alloy was found to be larger than that in recrystallized Al–Zn–Mg–Cu alloy, the discontinuity of precipitates distribution along the grain boundary was enhanced by the introduction of Sc and Zr.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 612, 5 November 2014, Pages 42–50
نویسندگان
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