Influences of yttrium content on microstructure and mechanical properties of as-cast Mg–Ca–Y–Zr alloys
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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Magnesium Technology 2018. Hrsg. / Kiran N. Solanki; Vineet Joshi; Neale R. Neelameggham; Dmytro Orlov. Springer International Publishing, 2018. S. 91-97 (Minerals, Metals and Materials Series; Band Part F7).
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Influences of yttrium content on microstructure and mechanical properties of as-cast Mg–Ca–Y–Zr alloys
AU - You, Sihang
AU - Huang, Yuanding
AU - Kainer, Karl Ulrich
AU - Hort, Norbert
PY - 2018
Y1 - 2018
N2 - The microstructure and mechanical properties of as-cast Mg–Ca–Y–Zr alloys with different Y contents were investigated. The alloy containing 0.5 wt% Y exhibited finer grains compared to the alloys with higher Y content. All alloys had a dendritic microstructure with eutectics composed of α-Mg and Ca-rich intermetallic phases. Few Mg–Y-rich intermetallic particles were also found along grain boundaries. EDS analysis showed that the solute Y segregated at dendritic and grain boundaries. The amount of Y contained in eutectics remarkably increased with increasing Y. In addition, the eutectics volume fractions of all alloys were comparable but the morphology became less continuous at higher Y contents. Both the room temperature tensile and compressive strengths were largely improved with increasing Y content. Moreover, the elevated temperature compression tests showed that the compressive yield strength first decreased slightly when the temperature rose to 175 °C, but then remained stable as the temperature increased.
AB - The microstructure and mechanical properties of as-cast Mg–Ca–Y–Zr alloys with different Y contents were investigated. The alloy containing 0.5 wt% Y exhibited finer grains compared to the alloys with higher Y content. All alloys had a dendritic microstructure with eutectics composed of α-Mg and Ca-rich intermetallic phases. Few Mg–Y-rich intermetallic particles were also found along grain boundaries. EDS analysis showed that the solute Y segregated at dendritic and grain boundaries. The amount of Y contained in eutectics remarkably increased with increasing Y. In addition, the eutectics volume fractions of all alloys were comparable but the morphology became less continuous at higher Y contents. Both the room temperature tensile and compressive strengths were largely improved with increasing Y content. Moreover, the elevated temperature compression tests showed that the compressive yield strength first decreased slightly when the temperature rose to 175 °C, but then remained stable as the temperature increased.
KW - Mechanical properties
KW - Mg–Ca–Y–Zr alloy
KW - Microstructure
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=85042439087&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-72332-7_15
DO - 10.1007/978-3-319-72332-7_15
M3 - Article in conference proceedings
AN - SCOPUS:85042439087
SN - 9783319723310
SN - 978-3-319-89171-2
T3 - Minerals, Metals and Materials Series
SP - 91
EP - 97
BT - Magnesium Technology 2018
A2 - Solanki, Kiran N.
A2 - Joshi, Vineet
A2 - Neelameggham, Neale R.
A2 - Orlov, Dmytro
PB - Springer International Publishing
T2 - International Symposium on Magnesium Technology 2018
Y2 - 11 March 2018 through 15 March 2018
ER -