Effects of Al and Zn additions on mechanical properties and precipitation behaviors of Mg-Sn alloy system

Hyeon Taek Son; Jong Beom Lee; Ha Guk Jeong; Toyohiko J. Konno

doi:10.1016/j.matlet.2011.03.083

Effects of Al and Zn additions on mechanical properties and precipitation behaviors of Mg-Sn alloy system

Hyeon Taek Son, Jong Beom Lee, Ha Guk Jeong, Toyohiko J. Konno

IMR - Institute for Materials Research (institute affiliation only)

Korea Institute of Industrial Technology

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

For the Mg-Sn-Al alloys, the ultimate strength (UTS) of an extruded Mg-9wt.%Al-2wt.%Sn alloy reached 390 MPa. TEM observation indicated that plate-like Mg₁₇Al₁₂ precipitates having Burgers orientation relationship with the matrix are responsible for the strength. This alloy also exhibits an age hardening behavior: the peak hardness appears after 15-20 h of heat treatment at 473 K. On the other hand, the UTS of the Mg-Mg-Sn-Zn alloys are on the order of 300 MPa. The precipitates in these alloys are composed of the Mg₂Sn and MgZn₂ particles. It was found that these phases often precipitate together, suggesting that the MgZn₂ phase can act as a nucleation sites for Mg₂Sn.

Original language	English
Pages (from-to)	1966-1969
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	12
DOIs	https://doi.org/10.1016/j.matlet.2011.03.083
Publication status	Published - 2011 Jun 30

Keywords

Elastic properties
Intermetallic alloys and compounds
Metals and alloys
Microstructure

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10.1016/j.matlet.2011.03.083

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title = "Effects of Al and Zn additions on mechanical properties and precipitation behaviors of Mg-Sn alloy system",

abstract = "For the Mg-Sn-Al alloys, the ultimate strength (UTS) of an extruded Mg-9wt.%Al-2wt.%Sn alloy reached 390 MPa. TEM observation indicated that plate-like Mg17Al12 precipitates having Burgers orientation relationship with the matrix are responsible for the strength. This alloy also exhibits an age hardening behavior: the peak hardness appears after 15-20 h of heat treatment at 473 K. On the other hand, the UTS of the Mg-Mg-Sn-Zn alloys are on the order of 300 MPa. The precipitates in these alloys are composed of the Mg2Sn and MgZn2 particles. It was found that these phases often precipitate together, suggesting that the MgZn2 phase can act as a nucleation sites for Mg2Sn.",

keywords = "Elastic properties, Intermetallic alloys and compounds, Metals and alloys, Microstructure",

author = "Son, {Hyeon Taek} and Lee, {Jong Beom} and Jeong, {Ha Guk} and Konno, {Toyohiko J.}",

note = "Funding Information: We thank Dr. K.Sato for the help during STEM operation. This study was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Commerce, Industry and Energy, Republic of Korea .",

year = "2011",

month = jun,

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doi = "10.1016/j.matlet.2011.03.083",

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T1 - Effects of Al and Zn additions on mechanical properties and precipitation behaviors of Mg-Sn alloy system

AU - Son, Hyeon Taek

AU - Lee, Jong Beom

AU - Jeong, Ha Guk

AU - Konno, Toyohiko J.

N1 - Funding Information: We thank Dr. K.Sato for the help during STEM operation. This study was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Commerce, Industry and Energy, Republic of Korea .

PY - 2011/6/30

Y1 - 2011/6/30

N2 - For the Mg-Sn-Al alloys, the ultimate strength (UTS) of an extruded Mg-9wt.%Al-2wt.%Sn alloy reached 390 MPa. TEM observation indicated that plate-like Mg17Al12 precipitates having Burgers orientation relationship with the matrix are responsible for the strength. This alloy also exhibits an age hardening behavior: the peak hardness appears after 15-20 h of heat treatment at 473 K. On the other hand, the UTS of the Mg-Mg-Sn-Zn alloys are on the order of 300 MPa. The precipitates in these alloys are composed of the Mg2Sn and MgZn2 particles. It was found that these phases often precipitate together, suggesting that the MgZn2 phase can act as a nucleation sites for Mg2Sn.

AB - For the Mg-Sn-Al alloys, the ultimate strength (UTS) of an extruded Mg-9wt.%Al-2wt.%Sn alloy reached 390 MPa. TEM observation indicated that plate-like Mg17Al12 precipitates having Burgers orientation relationship with the matrix are responsible for the strength. This alloy also exhibits an age hardening behavior: the peak hardness appears after 15-20 h of heat treatment at 473 K. On the other hand, the UTS of the Mg-Mg-Sn-Zn alloys are on the order of 300 MPa. The precipitates in these alloys are composed of the Mg2Sn and MgZn2 particles. It was found that these phases often precipitate together, suggesting that the MgZn2 phase can act as a nucleation sites for Mg2Sn.

KW - Elastic properties

KW - Intermetallic alloys and compounds

KW - Metals and alloys

KW - Microstructure

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DO - 10.1016/j.matlet.2011.03.083

M3 - Article

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SN - 0167-577X

VL - 65

SP - 1966

EP - 1969

JO - Materials Letters

JF - Materials Letters

IS - 12

ER -

Effects of Al and Zn additions on mechanical properties and precipitation behaviors of Mg-Sn alloy system

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Keywords

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