Platinum Metals Rev., 1996, 40, (1), 37
Palladium Alloy Mechanical Properties
The mechanical properties of three structural forms of palladium-manganese alloy, containing 10 to 25 atomic per cent manganese, have been examined (D. Jonsen, A. Moss, J. Shenk, K. Rebeiz, S. Nesbit, R. Foley and A. Craft, Mater. Sci. Eng., 1995, A199, (2), 131–138). One form, with Ll2 structure, produced by the presence of hydrogen during heat treating the alloy, had markedly different properties to the other two forms; these included enhanced strength and hardness, reduced ductility and fatigue life. The differences are thought due to the formation of the Ll2 structure and a hydride phase in this alloy whose decomposition significantly affects the properties. The hydrogen-induced lattice rearrangement may be a way of manipulating the mechanical properties of alloys.