Effect of sn addition on corrosion properties of As-Cast and Hot-Rolled AZ31 magnesium alloys
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Trans Tech Publications Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the effect of Sn addition on corrosion resistance of as-cast and hot rolled AZ31 magnesium alloy was investigated. Sn additions were made by 0.2 wt%, 0.5 wt% and 1 wt%. An electric resistance furnace was used to produce alloys. Hot rolling process was performed at 350 °C by 40% thickness reduction at one rolling pass. Microstructure characterizations were performed by optical (OM) and scanning electron microscope (SEM). Immersion tests and electrochemical analyses were performed to investigate the corrosion resistance of the alloys. A 3.5% NaCl working solution at room temperature was used in both corrosion tests. The results showed that Sn addition decreased the primary dentrite size and restricted the growth of secondary dentritic arm. The as-cast structures transformed to dynamically recrystallized grain structures after hot-rolling process in all the alloys. Corrosion resistance of AZ31 magnesium alloy tended to decrease with Sn addition. This decrease was more clear in homogenized and hot-rolled states while there were some flactuations in as-cast states. © 2017 Trans Tech Publications, Switzerland.
Açıklama
6th International Conference on Materials Science and Technologies, RoMat 2016 -- 9 November 2016 through 12 November 2016 -- Bucharest -- 196879
Anahtar Kelimeler
AZ31 magnesium alloys, Corrosion, Microstructure, Sn addition
Kaynak
Key Engineering Materials
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
750 KEM
