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首页> 外文期刊>Aluminium >EFFECTS OF THE ADDITION OF Cu AND Mg ON THE MACHINABILITY OF HYPEREUTECTIC AlSi ALLOYS
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EFFECTS OF THE ADDITION OF Cu AND Mg ON THE MACHINABILITY OF HYPEREUTECTIC AlSi ALLOYS

机译：Cu和Mg的添加对过共晶AlSi合金可加工性的影响

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摘要

Hypereutectic AlSi alloys have a low thermal expansion coefficient and excellent wear resistance. Their high temperature strength can be improved by adding Ni and after the addition of Cu and Mg they can be strengthened by heat treatment. AlSi alloys processed by various casting techniques such as low-pressure casting and pressure or gravity diecasting are widely used for the production of mechanical components such as parts of automobile engines or pistons for diesel engines. For a number of years they have been used to replace cast iron in the manufacture of cylinder blocks, parts of compressors, and other components which must be resistant to abrasion.
机译：过共晶AlSi合金具有低热膨胀系数和出色的耐磨性。通过添加Ni可以改善它们的高温强度，并且在添加Cu和Mg之后可以通过热处理来增强它们的强度。通过各种铸造技术（例如低压铸造和压力或重力压铸）加工的AlSi合金被广泛用于机械部件的生产，例如汽车发动机的零件或柴油发动机的活塞。多年以来，它们已被用于制造气缸体，压缩机零件和其他必须耐磨损的部件中的铸铁。

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