metalliding
/ˈmɛt(ə)lʌɪdɪŋ/Manuf.
noun
The formation of a kind of surface alloy by an electrolytic process in which atoms of one metal diffuse into the surface of another, carried out at high temperature in a bath of molten fluoride salts with the diffusing metal serving as the cathode and the receptor metal as the anode.
Origin
1960s; earliest use found in Iron Age. From metallo- + -ide + -ing.