High Temperature Strain of Metals and Alloys: Physical Fundamentals

Creep and fatigue are the most important causes of failure in heat-resistant alloys, which are important intermetallics for industrial usage, such as in engines and turbine blades in the aerospace or energy producing industries. It is thus vital to find new characterization methods that allow an understanding of the fundamental physics of creep and fatigue in these materials.

Here, the author shows how new x-ray and transmission electron microscope studies lead to novel explanations of the physical bases of creep and fatigue in superalloys. This unique approach is the first to find unequivocal and quantitative expressions for the macroscopic deformation rate of metals by means of three groups of parameters: substructural characteristics, physical material constants and external conditions.

From the contents:

• Macroscopic characteristics of strain
• The experimental equipment and techniques of the x-ray investigations
• Structural parameters and experimental data
• The physical mechanism and the structural model of deformation
• Modeling of the microstructure parameters evolution and of the deformation processes
• System of differential equations
• Deformation and microstructure of refractory metals
• Deformation of heat-resistant industrial alloys

For materials scientists, solid state physicists and solid state chemists.