Compression creep at 240°C of extruded magnesium alloys containing gadolinium
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Light Metals Technology V. ed. / Hajo Dieringa; Norbert Hort; Karl Ulrich Kainer. Trans Tech Publications Ltd, 2011. p. 270-273 (Materials Science Forum; Vol. 690).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Compression creep at 240°C of extruded magnesium alloys containing gadolinium
AU - Dieringa, Hajo
AU - Hort, Norbert
AU - Müller, Sören
AU - Kainer, Karl Ulrich
PY - 2011
Y1 - 2011
N2 - For uses at high temperatures, magnesium alloys containing rare earths have proven to be very suitable. High proportions of melting precipitates contribute to strengthening, even at temperatures above 200°C. If these alloys are extruded, their creep resistance rises even further due to the resulting fine-grained structure. In this paper, magnesium alloys with 10% Gd and additional small amounts of La and Nd are compared with WE43 for compression creep at temperatures of 240°C and stresses between 80 and 150 MPa. The minimum creep rates are determined and the stress exponent evaluated in accordance with the Norton equation. By calculating the threshold stress, the true stress exponents are determined.
AB - For uses at high temperatures, magnesium alloys containing rare earths have proven to be very suitable. High proportions of melting precipitates contribute to strengthening, even at temperatures above 200°C. If these alloys are extruded, their creep resistance rises even further due to the resulting fine-grained structure. In this paper, magnesium alloys with 10% Gd and additional small amounts of La and Nd are compared with WE43 for compression creep at temperatures of 240°C and stresses between 80 and 150 MPa. The minimum creep rates are determined and the stress exponent evaluated in accordance with the Norton equation. By calculating the threshold stress, the true stress exponents are determined.
KW - Creep
KW - Extrusion
KW - Gadolinium
KW - Magnesium
KW - Threshold stress
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=79960414852&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.690.270
DO - 10.4028/www.scientific.net/MSF.690.270
M3 - Article in conference proceedings
AN - SCOPUS:79960414852
SN - 9783037851807
T3 - Materials Science Forum
SP - 270
EP - 273
BT - Light Metals Technology V
A2 - Dieringa, Hajo
A2 - Hort, Norbert
A2 - Kainer, Karl Ulrich
PB - Trans Tech Publications Ltd
ER -