Low cycle fatigue properties of extruded Mg10GdxNd alloys
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Magnesium Technology 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition. ed. / Martyn Alderman; Michele V. Manuel; Nobert Hort; Neale R. Neelameggham. The Minerals, Metals & Materials Society, 2014. p. 115-120 (Magnesium Technology).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Low cycle fatigue properties of extruded Mg10GdxNd alloys
AU - Tober, Gerhard
AU - Maier, Petra
AU - Müller, Soren
AU - Hort, Norbert
N1 - Conference code: 143
PY - 2014/2
Y1 - 2014/2
N2 - The Rare Earth (RE) containing magnesium alloys MglOGd and MglOGdlNd show after extrusion very good low cycle fatigue (LCF) properties. Considering extruded AZ31 as a possible benchmark alloy, life times as a function of LCF stress values are similar to the alloys investigated in this study. Mechanical properties determined in tension and compression show smaller values for both RE containing alloys. Therefore the LCF behavior is analyzed by the stress-strain hysteresis evaluation resulting in cyclic creep and plastic hardening or softening. LCF tests were strain controlled with amplitude of 0.5 % and 0.8 % at a frequency of 5 Hz. The fracture surfaces are examined by SEM, where the area of crack propagation and overload were of main interest. Micrographs of longitudinal cross sections reveal twinning along the region of crack propagation. The correlation between the amount of twins and the number of cycles is discussed.
AB - The Rare Earth (RE) containing magnesium alloys MglOGd and MglOGdlNd show after extrusion very good low cycle fatigue (LCF) properties. Considering extruded AZ31 as a possible benchmark alloy, life times as a function of LCF stress values are similar to the alloys investigated in this study. Mechanical properties determined in tension and compression show smaller values for both RE containing alloys. Therefore the LCF behavior is analyzed by the stress-strain hysteresis evaluation resulting in cyclic creep and plastic hardening or softening. LCF tests were strain controlled with amplitude of 0.5 % and 0.8 % at a frequency of 5 Hz. The fracture surfaces are examined by SEM, where the area of crack propagation and overload were of main interest. Micrographs of longitudinal cross sections reveal twinning along the region of crack propagation. The correlation between the amount of twins and the number of cycles is discussed.
KW - Extruded
KW - Low cycle fatigue
KW - Magnesium alloy
KW - Rare Earth
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84899788081&partnerID=8YFLogxK
U2 - 10.1002/9781118888179.ch25
DO - 10.1002/9781118888179.ch25
M3 - Article in conference proceedings
AN - SCOPUS:84899788081
SN - 9781118888162
T3 - Magnesium Technology
SP - 115
EP - 120
BT - Magnesium Technology 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition
A2 - Alderman, Martyn
A2 - Manuel, Michele V.
A2 - Hort, Nobert
A2 - Neelameggham, Neale R.
PB - The Minerals, Metals & Materials Society
T2 - 143rd Annual Meeting and Exhibition of Magnesium Technology 2014 - TMS 2014
Y2 - 16 February 2014 through 20 February 2014
ER -