Development of high strength Mg alloys by MA-HDH P/M process

Mitsuhiro Matsuda; Shintaro Yoshimoto; Yoshihito Kawamura; Kazuhiro Ishikawa; Minoru Nishida

doi:10.4028/www.scientific.net/msf.419-422.739

Development of high strength Mg alloys by MA-HDH P/M process

Mitsuhiro Matsuda, Shintaro Yoshimoto, Yoshihito Kawamura, Kazuhiro Ishikawa, Minoru Nishida

Research output: Contribution to journal › Conference article › peer-review

Abstract

MA-HDH P/M process for the production of Mg bulk alloy has been established by using MgH₂ powders as the starting material. The as-extruded Mg₉₅Zn_2.5Zr_2.5 bulk alloy of MAed powders showed high compressive yield strength of 613 MPa, which was originated from the refinement of hcp-Mg grains, the solid solution hardening of Zn and Zr, and the precipitation hardening by MgO fine particles. The compressive yield strength of the MA-HDH P/M Mg₉₅Zn_2.5Zr_2.5 alloy annealed at 823K for 10.8 ks was as high as that of the as-extruded Mg₉₅Zn_2.5Zr_2.5 bulk alloy. This seems to be due to the suppression of the hcp-Mg grain growth by the densely dispersed MgO fine particles.

Original language	English
Pages (from-to)	739-744
Number of pages	6
Journal	Materials Science Forum
Volume	419-422
Issue number	II
DOIs	https://doi.org/10.4028/www.scientific.net/msf.419-422.739
Publication status	Published - Jan 1 2003
Externally published	Yes
Event	Proceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 - Osaka, Japan Duration: Jan 26 2003 → Jan 30 2003

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Development of high strength Mg alloys by MA-HDH P/M process",

abstract = "MA-HDH P/M process for the production of Mg bulk alloy has been established by using MgH2 powders as the starting material. The as-extruded Mg95Zn2.5Zr2.5 bulk alloy of MAed powders showed high compressive yield strength of 613 MPa, which was originated from the refinement of hcp-Mg grains, the solid solution hardening of Zn and Zr, and the precipitation hardening by MgO fine particles. The compressive yield strength of the MA-HDH P/M Mg95Zn2.5Zr2.5 alloy annealed at 823K for 10.8 ks was as high as that of the as-extruded Mg95Zn2.5Zr2.5 bulk alloy. This seems to be due to the suppression of the hcp-Mg grain growth by the densely dispersed MgO fine particles.",

author = "Mitsuhiro Matsuda and Shintaro Yoshimoto and Yoshihito Kawamura and Kazuhiro Ishikawa and Minoru Nishida",

year = "2003",

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doi = "10.4028/www.scientific.net/msf.419-422.739",

language = "English",

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journal = "Materials Science Forum",

issn = "0255-5476",

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number = "II",

note = "Proceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 ; Conference date: 26-01-2003 Through 30-01-2003",

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TY - JOUR

T1 - Development of high strength Mg alloys by MA-HDH P/M process

AU - Matsuda, Mitsuhiro

AU - Yoshimoto, Shintaro

AU - Kawamura, Yoshihito

AU - Ishikawa, Kazuhiro

AU - Nishida, Minoru

PY - 2003/1/1

Y1 - 2003/1/1

N2 - MA-HDH P/M process for the production of Mg bulk alloy has been established by using MgH2 powders as the starting material. The as-extruded Mg95Zn2.5Zr2.5 bulk alloy of MAed powders showed high compressive yield strength of 613 MPa, which was originated from the refinement of hcp-Mg grains, the solid solution hardening of Zn and Zr, and the precipitation hardening by MgO fine particles. The compressive yield strength of the MA-HDH P/M Mg95Zn2.5Zr2.5 alloy annealed at 823K for 10.8 ks was as high as that of the as-extruded Mg95Zn2.5Zr2.5 bulk alloy. This seems to be due to the suppression of the hcp-Mg grain growth by the densely dispersed MgO fine particles.

AB - MA-HDH P/M process for the production of Mg bulk alloy has been established by using MgH2 powders as the starting material. The as-extruded Mg95Zn2.5Zr2.5 bulk alloy of MAed powders showed high compressive yield strength of 613 MPa, which was originated from the refinement of hcp-Mg grains, the solid solution hardening of Zn and Zr, and the precipitation hardening by MgO fine particles. The compressive yield strength of the MA-HDH P/M Mg95Zn2.5Zr2.5 alloy annealed at 823K for 10.8 ks was as high as that of the as-extruded Mg95Zn2.5Zr2.5 bulk alloy. This seems to be due to the suppression of the hcp-Mg grain growth by the densely dispersed MgO fine particles.

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SN - 0255-5476

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SP - 739

EP - 744

JO - Materials Science Forum

JF - Materials Science Forum

IS - II

T2 - Proceedings of the Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003

Y2 - 26 January 2003 through 30 January 2003

ER -

Development of high strength Mg alloys by MA-HDH P/M process

Abstract

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