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含镁合金现已广泛地应用于钢铁变性和精炼处理过程中。但是在汽车制造、农业机械制造及其它一些技术方面用高强度铸铁的铸造生产中,这些含镁合金也需要大力推广应用。在黑色冶金中,在生产高强变铸铁铸件和铸管,以及处理轨钢及一系列结构钢和合金时,应用含镁合金是很有前途的。较为普遍的是采用镍和铜作合金基,因为这两种元素与第四周期的其它过渡元素不同,能溶解大量镁。镍镁中间合金与铜镁小问合金有很高的密度(4.9—5.2g/cm~2,合金中镁含量为12—17%),并在高温效应不太大的情况下便迅速地溶于熔融金属中。尽管这些孕育剂具有许多优点,但只有在镍和
Magnesium alloy has been widely used in steel degeneration and refining process. However, these magnesium-containing alloys also need to be vigorously promoted for use in the casting of high-strength cast iron in automobile manufacturing, agricultural machinery manufacturing and other technologies. In black metallurgy, the use of magnesium-containing alloys is promising in the production of high strength cast iron castings and tubes, as well as in the treatment of rail steels and a range of structural steels and alloys. It is more common to use nickel and copper as the alloying base because these two elements, unlike the other transition elements of the fourth cycle, can dissolve large amounts of magnesium. Nickel-magnesium master alloy and copper-magnesium alloy with a very high density (4.9-5.2g / cm ~ 2, magnesium alloy content of 12-17%), and in the case of high temperature effects will not dissolve rapidly In molten metal. Although these inoculants have many advantages, but only in nickel and