Corrosion Resistance of Interstitial Free Steel and Mg Alloys Sheets Joined by Mechanical Clinching
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The corrosion resistance of mechanically clinched interstitial free (IF) steel-Mg joints was investigated by potentiodynamic and immersion corrosion tests in 3.5% NaCl solution at 25 C. The initial microstructure influenced the corrosion performance of studied joints due to the formation of secondary phases and their volume fraction changed the galvanic corrosion response of Mg materials. Nd-La addition enhanced the corrosion resistance of IF-Mg joints, where two times higher corrosion resistance was obtained by IF-AZ31B-0.5Nd-0.1La (1110 mils/year (mpy)) joint than IF-AZ31B (3670 mpy). The cross section locations had different secondary phase (SP) volume fraction, SP-distribution and grain orientations which altered the corrosion behavior of joined materials. After the clinching process, the deformed section of IF-AZ31B-0.5Nd-0.1La and IF-AZ31B showed lower corrosion rate than undeformed sections 1040 and 1110 mpy and 2820 and 3670 mpy, respectively.
Açıklama
Anahtar Kelimeler
AZ31B, corrosion, La, mechanical clinching, Nd
Kaynak
Journal of Materials Engineering and Performance
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
32
Sayı
6
