TY - JOUR

T1 - Properties and processing of magnesium-tin-calcium alloys

AU - Hort, N.

AU - Huang, Y. D.

AU - Leil, T. Abu

AU - Rao, K. P.

AU - Kainer, K. U.

PY - 2011

Y1 - 2011

N2 - The development of new creep resistant magnesium alloys has become a major issue in recent years and therefore further alloy development is necessary. Newly developed alloys are based on the binary system Mg-Sn. Sn as major alloying element was chosen due to its high solid solubility over a wide temperature range and due to the possible formation of Mg2Sn intermetallic precipitates with a high melting temperature of about 770°C. These characteristics suggest that a fairly large volume fraction of thermally stable Mg2Sn particles can be formed during solidification. This makes it possible that the Mg-Sn alloys can be developed as creep resistant magnesium alloys and/or wrought magnesium alloys. Previous investigations indicate that the Mg-Sn alloys have a comparable or even better creep properties than AE42 alloy. This paper presents an overview about recent works on the developments of Mg-Sn alloys performed in MagIC, Helmholtz-Zentrum Geesthacht, which includes: microstructural characterization, creep deformation and hot deformation, and corrosion behaviour. Very positive results have been obtained and show Mg-Sn-Ca alloy systems can be developed for power train and hand tool applications.

AB - The development of new creep resistant magnesium alloys has become a major issue in recent years and therefore further alloy development is necessary. Newly developed alloys are based on the binary system Mg-Sn. Sn as major alloying element was chosen due to its high solid solubility over a wide temperature range and due to the possible formation of Mg2Sn intermetallic precipitates with a high melting temperature of about 770°C. These characteristics suggest that a fairly large volume fraction of thermally stable Mg2Sn particles can be formed during solidification. This makes it possible that the Mg-Sn alloys can be developed as creep resistant magnesium alloys and/or wrought magnesium alloys. Previous investigations indicate that the Mg-Sn alloys have a comparable or even better creep properties than AE42 alloy. This paper presents an overview about recent works on the developments of Mg-Sn alloys performed in MagIC, Helmholtz-Zentrum Geesthacht, which includes: microstructural characterization, creep deformation and hot deformation, and corrosion behaviour. Very positive results have been obtained and show Mg-Sn-Ca alloy systems can be developed for power train and hand tool applications.

KW - Corrosion

KW - Creep

KW - Magnesium alloy

KW - Mg-Sn

KW - Microstructure

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=80052129410&partnerID=8YFLogxK

U2 - 10.4149/km_2011_3_163

DO - 10.4149/km_2011_3_163

M3 - Journal articles

AN - SCOPUS:80052129410

VL - 49

SP - 163

EP - 177

JO - Kovove Materialy

JF - Kovove Materialy

SN - 0023-432X

IS - 3

ER -