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Heat treaments of magnesium alloys

Solid magnesium alloys (thickness greater than 1 mm) only ignite if heated to a temperature around 20-30°C above their melting point, i.e. around 520°C for the most fusible alloys. Nevertheless, it is essential to protect the loads to be treated as soon as the temperature exceeds 350°C, especially if the load comprises massive parts in which the sawing of the feeders has exposed zones where the magnesium-zinc eutectic (melting point: 340°C) is in high concentration.