sulami koostisosa - kahe metalli aatomite kindla suhte korral moodustuv metallidevaheline keemiline ühend, mille kristallivõre erineb komponentide kristallivõredest (vt keemiline ühend), a constituent of alloys that is formed when atoms of two metals combine in certain proportions to form crystals with a different structure from that of either of metals (see: chemical compound)