the second of a series of articles describing the materials used in aircraft construction

摘要

MAGNESIUM, because of its low density, has obvious possibilities as an aircraft structural material. The useful magnesium alloys have densities in the range 176 to 183, compared with the aluminium alloys range of about 2 -5 to 2 ? 8. The melting point of magnesium is 650 deg. C, almost identical with that of aluminium (660 dcg. C), so that generally the alloys of each of these base elements have applications in much the same temperature band.