Microstructure investigation of Mg-10Gd-1La containing alloy subjected to fatigue deformation
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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Materials Science and Technology Conference and Exhibition 2013, MS and T 2013. Association for Iron and Steel Technology (AISTECH), 2013. S. 1542-1549 (Materials Science and Technology Conference and Exhibition 2013, MS and T 2013; Band 3).
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Microstructure investigation of Mg-10Gd-1La containing alloy subjected to fatigue deformation
AU - Mendis, C. L.
AU - Maier, P.
AU - Müller, Sören
AU - Kainer, K. U.
AU - Hort, N.
PY - 2013
Y1 - 2013
N2 - Mg-Gd alloys show a good combination of mechanical properties and corrosion rates. This has led to the interest in developing Mg-Gd based alloys for medical applications as implant materials. The deformation behaviour of Mg-Gd alloys subjected to fatigue was investigated previously and in extruded alloys the failure occurs in a ductile manner. The role of the intermetallic particles in twinning deformation on the propagation of cracks that form during fatigue deformation remains unclear. In the present study the microstructure of the fatigue tested samples are investigated with optical and scanning electron microscopy (SEM) equipped with EBSD to determine the role of twinning and orientation of the grains on the propagation of fatigue cracks. A significant increase in the amount of twins near the fracture surface was detected with majority being tension twins. The relationship between the propagation of fatigue cracks and role of twins will be discussed.
AB - Mg-Gd alloys show a good combination of mechanical properties and corrosion rates. This has led to the interest in developing Mg-Gd based alloys for medical applications as implant materials. The deformation behaviour of Mg-Gd alloys subjected to fatigue was investigated previously and in extruded alloys the failure occurs in a ductile manner. The role of the intermetallic particles in twinning deformation on the propagation of cracks that form during fatigue deformation remains unclear. In the present study the microstructure of the fatigue tested samples are investigated with optical and scanning electron microscopy (SEM) equipped with EBSD to determine the role of twinning and orientation of the grains on the propagation of fatigue cracks. A significant increase in the amount of twins near the fracture surface was detected with majority being tension twins. The relationship between the propagation of fatigue cracks and role of twins will be discussed.
KW - Extrusions
KW - Fatigue crack propagation
KW - Mg-10Gd-1La
KW - Microstructure
UR - http://www.scopus.com/inward/record.url?scp=84893681838&partnerID=8YFLogxK
M3 - Article in conference proceedings
AN - SCOPUS:84893681838
SN - 9781629933092
T3 - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
SP - 1542
EP - 1549
BT - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
PB - Association for Iron and Steel Technology (AISTECH)
T2 - Materials Science and Technology Conference and Exhibition - MS & T 2013
Y2 - 27 October 2013 through 31 October 2013
ER -