CPC B23K 20/2333 (2013.01) [B23K 20/04 (2013.01); B23K 20/16 (2013.01); B23K 2101/36 (2018.08); B23K 2103/10 (2018.08); B23K 2103/12 (2018.08); B23K 2103/15 (2018.08); B23K 2103/18 (2018.08)] | 12 Claims |
1. A magnesium clad material comprising when a cross-section thereof cut in a thickness direction thereof is observed:
a Mg layer made of a Mg—Li alloy and serving as a base layer;
a first Al layer made of pure Al or an Al alloy; and
a first joint made of pure Cu or a Cu alloy and arranged between the Mg layer and the first Al layer; wherein
the magnesium clad material has a 0.2% proof stress of 150 MPa or more as measured in a tensile test under a room temperature atmosphere; and
the Mg—Li alloy comprises LAZ921, LAZ931, or LAZ941, which contains Al and Zn, and has flame retardancy in that the Mg—Li alloy does not ignite in a flammability test at 1050° C.
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