Investigation on the Duration of Action of Mg3N2 as a Grain Refiner for AZ80 Alloy
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In: Metals, Vol. 14.2024, No. 4, 485, 22.04.2024.
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TY - JOUR
T1 - Investigation on the Duration of Action of Mg3N2 as a Grain Refiner for AZ80 Alloy
AU - Hösele, Thomas
AU - Neunteufl, Ernst
AU - Li, Jiehua
N1 - Publisher Copyright: © 2024 by the authors.
PY - 2024/4/22
Y1 - 2024/4/22
N2 - In magnesium alloys with aluminum as an alloying component, zirconium loses its grain refinement effect as a grain refiner. Instead of zirconium, Mg3N2 can be used, and promising results have already been obtained. However, the duration of action of Mg3N2 has not been elucidated yet. The aim of this work is therefore to determine the grain size of the AZ80 alloy as a function of the duration of action of Mg3N2 and thus the economically reasonable duration of use. It was found that the Mg3N2 reaches its full effect from 30 min after a complete remelting and does not lose this grain refinement effect even after 90 min. It thus proves to be a stable and reliable grain refiner. A grain size of 146.3 ± 10.3 µm was achieved. Furthermore, a minimum tensile strength of 205 MPa with a break elongation of 5.99% was achieved.
AB - In magnesium alloys with aluminum as an alloying component, zirconium loses its grain refinement effect as a grain refiner. Instead of zirconium, Mg3N2 can be used, and promising results have already been obtained. However, the duration of action of Mg3N2 has not been elucidated yet. The aim of this work is therefore to determine the grain size of the AZ80 alloy as a function of the duration of action of Mg3N2 and thus the economically reasonable duration of use. It was found that the Mg3N2 reaches its full effect from 30 min after a complete remelting and does not lose this grain refinement effect even after 90 min. It thus proves to be a stable and reliable grain refiner. A grain size of 146.3 ± 10.3 µm was achieved. Furthermore, a minimum tensile strength of 205 MPa with a break elongation of 5.99% was achieved.
KW - AZ80 alloy
KW - grain refinement
KW - growth restriction factor
KW - mechanical properties
KW - MgN
KW - thermal analysis
UR - http://www.scopus.com/inward/record.url?scp=85191469641&partnerID=8YFLogxK
U2 - 10.3390/met14040485
DO - 10.3390/met14040485
M3 - Article
AN - SCOPUS:85191469641
VL - 14.2024
JO - Metals
JF - Metals
SN - 2075-4701
IS - 4
M1 - 485
ER -
