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Design and Properties of Bi-Pb-Sn-Cd Fusible Alloys

Jihui Wang

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Abstract

Series of Bi-Pb-Sn-Cd fusible alloys were designed with reference to the characteristics of Bi-based alloy and their phase diagram. The melting point, microstructure and the tensile strength of fusible alloys were determined by DSC, XRD and tension tests. The results show that the fusible alloy is composed by Bi, Pb_7Bi_3, Sn and Cd phases. The melting point of the all designed fusible alloy is around 72℃. The lquidus temperature falls down with the increase of content of Cd and Bi elements increase. The influence of alloy elements on the melting range and tensile strength are reduced in the order of Cd, Sn and Pb. Among the nine fusible alloys, Bi-30Pb-15Sn-9Cd alloy has the optimum performance according to orthogonal test.

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What this paper is about

Series of Bi-Pb-Sn-Cd fusible alloys were designed with reference to the characteristics of Bi-based alloy and their phase diagram. The melting point, microstructure and the tensile strength of fusible alloys were determined by DSC, XRD and tension tests. The results show that the fusible alloy is composed by Bi, Pb_7Bi_3, Sn and Cd phases. The melting point of the all designed fusible alloy is around 72℃. The lquidus temperature falls down with the increase of content of Cd and Bi elements increase. The influence of alloy elements on the melting range and tensile strength are reduced in the order of Cd, Sn and Pb. Among the nine fusible alloys, Bi-30Pb-15Sn-9Cd alloy has the optimum performance according to orthogonal test.

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Available abstract

Series of Bi-Pb-Sn-Cd fusible alloys were designed with reference to the characteristics of Bi-based alloy and their phase diagram. The melting point, microstructure and the tensile strength of fusible alloys were determined by DSC, XRD and tension tests. The results show that the fusible alloy is composed by Bi, Pb_7Bi_3, Sn and Cd phases. The melting point of the all designed fusible alloy is around 72℃. The lquidus temperature falls down with the increase of content of Cd and Bi elements increase. The influence of alloy elements on the melting range and tensile strength are reduced in the order of Cd, Sn and Pb. Among the nine fusible alloys, Bi-30Pb-15Sn-9Cd alloy has the optimum performance according to orthogonal test.

Key concepts: Fusible alloy, Alloy, Materials science, Melting point, Ultimate tensile strength, Metallurgy, Microstructure, Tensile testing

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