Mechanical behaviour and corrosion performance of thin film magnesium WE alloys
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
Standard
Light Metals Technology V. Hrsg. / Hajo Dieringa; Norbert Hort; Karl Ulrich Kainer. Trans Tech Publications Ltd, 2011. S. 286-289 (Materials Science Forum; Band 690).
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - CHAP
T1 - Mechanical behaviour and corrosion performance of thin film magnesium WE alloys
AU - Schlüter, K.
AU - Reverey, J.
AU - Hort, N.
AU - Zamponi, C.
AU - Quandt, E.
PY - 2011
Y1 - 2011
N2 - Mg based thin films are of increasing interest due to the potential in varying the corrosion properties in comparison to bulk alloys of the same nominal composition. In this work the mechanical behaviour and the corrosion performance of sputtered thin films consisting of magnesium alloys with the compositions Mg4Y3Gd and Mg4Y3Nd were investigated by tensile tests and electrochemical corrosion tests, respectively. The tensile tests showed that the sputtering parameters have an enormous influence on the mechanical properties of the thin films. By variation of the Ar sputtering pressure and the DC sputtering power it was possible to fabricate films with widely varying mechanical behaviour reaching from brittle to very ductile films which could be strained to more than 30%. The determined dependency between mechanical properties and deposition conditions was found to be present in both investigated alloys. The corrosion tests revealed that the corrosion behaviour of the investigated samples is not correlated to the mechanical properties of the thin films, as the rate of corrosion and the tendency to localized corrosion do not change significantly upon the deposition conditions, which dramatically influence the mechanical properties.
AB - Mg based thin films are of increasing interest due to the potential in varying the corrosion properties in comparison to bulk alloys of the same nominal composition. In this work the mechanical behaviour and the corrosion performance of sputtered thin films consisting of magnesium alloys with the compositions Mg4Y3Gd and Mg4Y3Nd were investigated by tensile tests and electrochemical corrosion tests, respectively. The tensile tests showed that the sputtering parameters have an enormous influence on the mechanical properties of the thin films. By variation of the Ar sputtering pressure and the DC sputtering power it was possible to fabricate films with widely varying mechanical behaviour reaching from brittle to very ductile films which could be strained to more than 30%. The determined dependency between mechanical properties and deposition conditions was found to be present in both investigated alloys. The corrosion tests revealed that the corrosion behaviour of the investigated samples is not correlated to the mechanical properties of the thin films, as the rate of corrosion and the tendency to localized corrosion do not change significantly upon the deposition conditions, which dramatically influence the mechanical properties.
KW - Magnesium alloys
KW - Magnetron sputtering
KW - Polarization measurements
KW - Tensile tests
KW - Thin films
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=79960412130&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.690.286
DO - 10.4028/www.scientific.net/MSF.690.286
M3 - Article in conference proceedings
AN - SCOPUS:79960412130
SN - 9783037851807
T3 - Materials Science Forum
SP - 286
EP - 289
BT - Light Metals Technology V
A2 - Dieringa, Hajo
A2 - Hort, Norbert
A2 - Kainer, Karl Ulrich
PB - Trans Tech Publications Ltd
ER -