Effect of Microstructure Parameters on Hardness of SnCu4Pb3 produced by Horizontal Centrifugal Casting

What is it about?

Horizontal centrifugal casting is an effective method for the production of hollow metal with good mechanical properties, low defect, cast to size and relatively cheap. The ability of a metal to satisfy the above requirements highly depends on its microstructure. In this study, the relationship between microstructural parameters such as grain size and the amount of phases with bulk hardness of SnCu4Pb3 is concerned in three areas of the product. Consequently, to achieve the desired hardness of the product in a particular area, the interaction of two factors of the microstructure including, grain size and particles amount of the hard intermetallic compositions (Cu6Sn5) should be noted.

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Why is it important?

As the increasing demands particularly in the shipbuilding and railways industry, study of engineering properties in order to save energy resources and raw materials causes pouring products of desired properties and cast-to-size. Competition of metallic materials with composite materials for desirable engineering properties and finally dispose of the pressure vessels due to segregation and internal stresses caused by traditional casting and in the other hand, progress in automobile and aircraft causes foundry industry can no longer rely on traditional ideas of non-scientific arguments to continue. Hence the need to engineering infrastructure and pay attention to science quickly became so wide as without any doubt can be stated that in the near future the casting will have correlation with the logical and mathematical concepts.