MORPHOLOGY AND COMPOSITION OF ELECTRODEPOSITED ZINC-MANGANESE ALLOYS

The influence of plating conditions on the morphology and composition of electrodeposited Zn-Mn alloys was studied. The manganese content de pends on the composition, the pH, the temperature and the stirring of the bath. It also depends on the current density used to prepare the d eposits. The morphology was observed by scanning electron microscopy, and the manganese content was determined by energy dispersive X-ray an alysis. The structure was determined by X-ray diffraction. A 12 a/o (a tomic percent) Mn alloy was compared with an alloy of the same composi tion prepared by melting. They showed the same diffractogram.