| 简介 |
Provided is a dendrite-free, Mg-base alloy material for strain working, wherein the additional elements forming a quasi-crystal phase or an approximant crystal phase thereof in the Mg matrix are Zn and Al. Also provided is a strain-worked material which is obtained by subjecting the Mg-base alloy material to strain working and which has Mg matrix sizes of 40μm or smaller. With attention paid both to the development of a quasi-crystal phase or an approximant crystal phase thereof in an Mg alloy and to the control of the microstructure of an Mg alloy before strain working, a trade-off balance between the strength and ductility of an Mg alloy and a reduction in the yield anisotropy thereof have been achieved using not rare earth elements, but inexpensive additional elements, Zn and Al, yield anisotropy being an important problem of a flattened magnesium alloy material. |
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