Categorization of Ambient-Temperature Creep Behavior of Metals and Alloys on Their Crystallographic Structures

The creep behavior at an ambient temperature of typical h.c.p., b.c.c. and f.c.c. metals and alloys of annealed states were surveyed. Cubic metals and alloys demonstrated negligible creep strain under all stress ranges. In contrast, h.c.p. metals and alloys demonstrated significant creep behavior. In particular, Ti–6Al–4V alloy and CP–Ti metal showed accumulated large creep strains. The difference among metals and alloys were negligible, for Mg and Zr. After being cold rolled, Ti– 6Al–4V alloy and CP–Ti metal showed less significant creep behavior.