Can metal and metal formed compound?

They usually form alloy. But alloy is a mixture and not a compound. So, they never form compound.

I don't think metal and metal will form compounds.
It's because both of them tend to lose electrons.

They can't form compund with convalent (non-metals only) and ionic (metal+non-metal) bonds.

To become stable, metals have only one structure, giant metallic structures. (for metal element only)
Positive ions are formed ,surrounded by a sea of electrons (from each metal atom)
They are held together by metallic bond.

To conclude, metal in order to be stable,
atoms --> positive ions + electrons
metal can only be stable in giant metallic structure = +ve ions and e held together

Metal and another metal form compound called Alloy, which has higher strength than the metal alone.

First heat source must be provided to melt them. Becuase strong attracton of positive metals ions for mobile outer electrons.