Eli5, What determines the melting temperature of an alloy? Is it the highest of the melting points of the mixed metals in it? Is it between the melting points of the different metals? Or is it unrelated?

Question

Eli5, What determines the melting temperature of an alloy? Is it the highest of the melting points of the mixed metals in it? Is it between the melting points of the different metals? Or is it unrelated?

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Answer 1

Unlike pure metals, most alloys have a melting range rather than a melting point, during which the substance experiences a slush transition between the solid state and the liquid state. Alloys begin to melt at the solidus temperature and the substance is partly liquid and partly solid.
They finish melting at the liquidus temperature.

Most alloys have lower melting points compared with their constituent metals because their atoms have more regular arrangements and stronger bonds.

So to answer your question.. it is determined by bonds and arrangements of atoms in structure… And it is usually a range slightly lower than the materials used