High Temperature Mechanical Behavior

This chapter starts with the description of the effects of elevated temperature on the deformation characteristics of materials by means of the Stress-Rupture and the Constant-Stress creep curves. The Creep Power Law for secondary creep is introduced along with the Larson and Miner creep life prediction method. Further, the deformation mechanisms in creep are described, as well as the creep fracture mechanism. Then, the ideas are applied to explain the foundations for the development of high-temperature service materials, known as refractory. The chapter ends with a brief description of the superplastic behavior that results of the combination of strengthening mechanism and high temperature behavior.