Tensile and compressive creep behaviour of Al2O3 (Saffil®) short fiber reinforced magnesium alloy AE42
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In: Materials Science and Engineering A, Vol. 410-411, 25.11.2005, p. 85-88.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Tensile and compressive creep behaviour of Al2O3 (Saffil®) short fiber reinforced magnesium alloy AE42
AU - Dieringa, Hajo
AU - Huang, Yuanding
AU - Maier, Petra
AU - Hort, Norbert
AU - Kainer, Karl Ulrich
PY - 2005/11/25
Y1 - 2005/11/25
N2 - The development of metal matrix composites (MMCs) is one possibility to overcome the disadvantage of poor high temperature creep properties of present magnesium alloys. Short fiber reinforcement improves the high temperature creep resistance of magnesium alloys. Tensile and compressive creep properties of magnesium alloy AE42 (4 wt.% aluminium and 2 wt.% rare earths) reinforced with 20 vol.% alumina (Saffil®) fibers were investigated in the temperature range of 175-300 °C and stress range of 40-140 MPa, respectively. The MMC was manufactured by direct squeeze casting. The materials investigated show different behaviour depending on type of loading. Stress exponents were calculated from the stress dependence of the minimum creep rate in order to find indications for the possible mechanisms of deformation. The need of correcting the stress dependence of the minimum creep rate by a threshold stress was found. Electron microscopy was performed to investigate the fracture surface of a tensile creep specimen.
AB - The development of metal matrix composites (MMCs) is one possibility to overcome the disadvantage of poor high temperature creep properties of present magnesium alloys. Short fiber reinforcement improves the high temperature creep resistance of magnesium alloys. Tensile and compressive creep properties of magnesium alloy AE42 (4 wt.% aluminium and 2 wt.% rare earths) reinforced with 20 vol.% alumina (Saffil®) fibers were investigated in the temperature range of 175-300 °C and stress range of 40-140 MPa, respectively. The MMC was manufactured by direct squeeze casting. The materials investigated show different behaviour depending on type of loading. Stress exponents were calculated from the stress dependence of the minimum creep rate in order to find indications for the possible mechanisms of deformation. The need of correcting the stress dependence of the minimum creep rate by a threshold stress was found. Electron microscopy was performed to investigate the fracture surface of a tensile creep specimen.
KW - AE42
KW - Compression
KW - Creep
KW - MMC
KW - Saffil
KW - Tension
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=28944438551&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/8b95a943-f854-39b1-850f-ab8242e3d948/
U2 - 10.1016/j.msea.2005.08.005
DO - 10.1016/j.msea.2005.08.005
M3 - Journal articles
AN - SCOPUS:28944438551
VL - 410-411
SP - 85
EP - 88
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
ER -