Effects of samarium content on microstructure and mechanical properties of Mg–0.5Zn–0.5Zr alloy

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Effects of samarium content on microstructure and mechanical properties of Mg–0.5Zn–0.5Zr alloy. / Guan, Kai; Meng, Fanzhi; Qin, Pengfei et al.
In: Journal of Materials Science and Technology, Vol. 35, No. 7, 07.2019, p. 1368-1377.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

Guan, K, Meng, F, Qin, P, Yang, Q, Zhang, D, Li, B, Sun, W, Lv, S, Huang, Y, Hort, N & Meng, J 2019, 'Effects of samarium content on microstructure and mechanical properties of Mg–0.5Zn–0.5Zr alloy', Journal of Materials Science and Technology, vol. 35, no. 7, pp. 1368-1377. https://doi.org/10.1016/j.jmst.2019.01.019

APA

Vancouver

Guan K, Meng F, Qin P, Yang Q, Zhang D, Li B et al. Effects of samarium content on microstructure and mechanical properties of Mg–0.5Zn–0.5Zr alloy. Journal of Materials Science and Technology. 2019 Jul;35(7):1368-1377. doi: 10.1016/j.jmst.2019.01.019

Bibtex

@article{9022e729e26241839649f00184b34bb9,
title = "Effects of samarium content on microstructure and mechanical properties of Mg–0.5Zn–0.5Zr alloy",
abstract = " Effects of samarium (Sm) content (0, 2.0, 3.5, 5.0, 6.5 wt%) on microstructure and mechanical properties of Mg–0.5Zn–0.5 Zr alloy under as-cast and as-extruded states were thoroughly investigated. Results indicate that grains of the as-cast alloys are gradually refined as Sm content increases. The dominant intermetallic phase changes from Mg 3 Sm to Mg 41 Sm 5 till Sm content exceeds 5.0 wt%. The dynamically precipitated intermetallic phase during hot-extrusion in all Sm-containing alloys is Mg 3 Sm. The intermetallic particles induced by Sm addition could act as heterogeneous nucleation sites for dynamic recrystallization during hot extrusion. They promoted dynamic recrystallization via the particle stimulated nucleation mechanism, and resulted in weakening the basal texture in the as-extruded alloys. Sm addition can significantly enhance the strength of the as-extruded Mg–0.5Zn–0.5 Zr alloy at room temperature, with the optimal dosage of 3.5 wt%. The optimal yield strength (YS) and ultimate tensile strength (UTS) are 368 MPa and 383 MPa, which were enhanced by approximately 23.1% and 20.8% compared with the Sm-free alloy, respectively. Based on microstructural analysis, the dominant strengthening mechanisms are revealed to be grain boundary strengthening and dispersion strengthening. ",
keywords = "Magnesium alloys, Mechanical properties, Microstructure, Samarium, Transmission electron microscopy (TEM), Engineering",
author = "Kai Guan and Fanzhi Meng and Pengfei Qin and Qiang Yang and Dongdong Zhang and Baishun Li and Wei Sun and Shuhui Lv and Yuanding Huang and Norbert Hort and Jian Meng",
year = "2019",
month = jul,
doi = "10.1016/j.jmst.2019.01.019",
language = "English",
volume = "35",
pages = "1368--1377",
journal = "Journal of Materials Science and Technology",
issn = "1005-0302",
publisher = "Elsevier B.V.",
number = "7",

}

RIS

TY - JOUR

T1 - Effects of samarium content on microstructure and mechanical properties of Mg–0.5Zn–0.5Zr alloy

AU - Guan, Kai

AU - Meng, Fanzhi

AU - Qin, Pengfei

AU - Yang, Qiang

AU - Zhang, Dongdong

AU - Li, Baishun

AU - Sun, Wei

AU - Lv, Shuhui

AU - Huang, Yuanding

AU - Hort, Norbert

AU - Meng, Jian

PY - 2019/7

Y1 - 2019/7

N2 - Effects of samarium (Sm) content (0, 2.0, 3.5, 5.0, 6.5 wt%) on microstructure and mechanical properties of Mg–0.5Zn–0.5 Zr alloy under as-cast and as-extruded states were thoroughly investigated. Results indicate that grains of the as-cast alloys are gradually refined as Sm content increases. The dominant intermetallic phase changes from Mg 3 Sm to Mg 41 Sm 5 till Sm content exceeds 5.0 wt%. The dynamically precipitated intermetallic phase during hot-extrusion in all Sm-containing alloys is Mg 3 Sm. The intermetallic particles induced by Sm addition could act as heterogeneous nucleation sites for dynamic recrystallization during hot extrusion. They promoted dynamic recrystallization via the particle stimulated nucleation mechanism, and resulted in weakening the basal texture in the as-extruded alloys. Sm addition can significantly enhance the strength of the as-extruded Mg–0.5Zn–0.5 Zr alloy at room temperature, with the optimal dosage of 3.5 wt%. The optimal yield strength (YS) and ultimate tensile strength (UTS) are 368 MPa and 383 MPa, which were enhanced by approximately 23.1% and 20.8% compared with the Sm-free alloy, respectively. Based on microstructural analysis, the dominant strengthening mechanisms are revealed to be grain boundary strengthening and dispersion strengthening.

AB - Effects of samarium (Sm) content (0, 2.0, 3.5, 5.0, 6.5 wt%) on microstructure and mechanical properties of Mg–0.5Zn–0.5 Zr alloy under as-cast and as-extruded states were thoroughly investigated. Results indicate that grains of the as-cast alloys are gradually refined as Sm content increases. The dominant intermetallic phase changes from Mg 3 Sm to Mg 41 Sm 5 till Sm content exceeds 5.0 wt%. The dynamically precipitated intermetallic phase during hot-extrusion in all Sm-containing alloys is Mg 3 Sm. The intermetallic particles induced by Sm addition could act as heterogeneous nucleation sites for dynamic recrystallization during hot extrusion. They promoted dynamic recrystallization via the particle stimulated nucleation mechanism, and resulted in weakening the basal texture in the as-extruded alloys. Sm addition can significantly enhance the strength of the as-extruded Mg–0.5Zn–0.5 Zr alloy at room temperature, with the optimal dosage of 3.5 wt%. The optimal yield strength (YS) and ultimate tensile strength (UTS) are 368 MPa and 383 MPa, which were enhanced by approximately 23.1% and 20.8% compared with the Sm-free alloy, respectively. Based on microstructural analysis, the dominant strengthening mechanisms are revealed to be grain boundary strengthening and dispersion strengthening.

KW - Magnesium alloys

KW - Mechanical properties

KW - Microstructure

KW - Samarium

KW - Transmission electron microscopy (TEM)

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85062890934&partnerID=8YFLogxK

U2 - 10.1016/j.jmst.2019.01.019

DO - 10.1016/j.jmst.2019.01.019

M3 - Journal articles

AN - SCOPUS:85062890934

VL - 35

SP - 1368

EP - 1377

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

SN - 1005-0302

IS - 7

ER -