TY - GEN
T1 - Performance evaluation of high-pressure die-cast magnesium alloys
AU - Easton, Mark
AU - Zhu, Suming
AU - Gibson, Mark
AU - Abbott, Trevor
AU - Ang, Hua Qian
AU - Chen, Xiaobo
AU - Birbilis, Nick
AU - Savage, Gary
N1 - Publisher Copyright:
© The Minerals, Metals & Materials Society 2017.
PY - 2017
Y1 - 2017
N2 - Over 90% of the magnesium (Mg) alloys in commercial applications are produced by high-pressure die-casting. This paper presents our efforts in evaluating castability and properties of commercial and near-commercial magnesium alloys to demonstrate how the currently available alloys can be applied to different situations across a range of property space. For high temperature applications, i.e. 175 °C and above, Mg–RE and Mg–Al–Ca based alloys have creep properties at least comparable to aluminium (Al) alloy A380 although these alloys have some challenges with casting or cost. For moderate temperatures, Mg–Al–RE based alloys, especially AE44, are most attractive due to an excellent combination of creep resistance, strength and castability. For automotive structural applications where a good combination of strength and ductility is required, Mg–Al alloys provide the baseline, but Mg–Al–RE based alloys can provide outstanding performance, especially with recent discoveries about its response to age hardening treatments. Therefore, high-pressure die-cast Mg alloys hold great promise for continued growth in automotive applications.
AB - Over 90% of the magnesium (Mg) alloys in commercial applications are produced by high-pressure die-casting. This paper presents our efforts in evaluating castability and properties of commercial and near-commercial magnesium alloys to demonstrate how the currently available alloys can be applied to different situations across a range of property space. For high temperature applications, i.e. 175 °C and above, Mg–RE and Mg–Al–Ca based alloys have creep properties at least comparable to aluminium (Al) alloy A380 although these alloys have some challenges with casting or cost. For moderate temperatures, Mg–Al–RE based alloys, especially AE44, are most attractive due to an excellent combination of creep resistance, strength and castability. For automotive structural applications where a good combination of strength and ductility is required, Mg–Al alloys provide the baseline, but Mg–Al–RE based alloys can provide outstanding performance, especially with recent discoveries about its response to age hardening treatments. Therefore, high-pressure die-cast Mg alloys hold great promise for continued growth in automotive applications.
KW - Castability
KW - Creep
KW - Magnesium alloys
KW - Property evaluation
UR - http://www.scopus.com/inward/record.url?scp=85042324307&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-52392-7_20
DO - 10.1007/978-3-319-52392-7_20
M3 - Conference contribution
SN - 9783319523910
T3 - Minerals, Metals and Materials Series
SP - 123
EP - 129
BT - Magnesium Technology 2017
A2 - Neelameggham, Neale R.
A2 - Singh, Alok
A2 - Solanki, Kiran N.
A2 - Orlov, Dmytro
PB - Springer International Publishing Switzerland
T2 - International Symposium on Magnesium Technology, 2017
Y2 - 26 February 2017 through 2 March 2017
ER -