METALLURGICAL AND MATERIALS ENGINEERING / 219

MTL 621-ADVANCED PHYSICAL METALLURGY 2. 3 credits
 Prerequisite: MTL 520. Continuation of MTL 620.
MTL 622-ADVANCED PHYSICAL METALLURGY 3. 3 credits
 Prerequisite: MTL 520. Continuation of MTL 621.
MTL 625-DIFFUSION IN SOLIDS. 3 credits
 Prerequisite: MTL 520. Physical basis, equations, and theories of diffusion;
tracer, chemical, multicomponent, and multiphase diffusion; diffusion in general
force fields.
MTL 630-RADIATION DAMAGE IN SOLIDS. 3 credits
 Action of thermal neutrons and fast particles upon solids, property changes by
irradiation in pure metals and alloys, irradiation effects in semiconductors and
ionic crystals; radiation phenomena in quartz, insulators, electronic devices and
fissionable materials.
MTL 640-ADVANCED MECHANICAL METALLURGY 1. 3 credits
 Prerequisite: MTL 540. Theory of elasticity; advanced theory of plasticity;
 theory and properties of dislocations; dislocation motion and interactions; applica-
 tion to deformation processes; survey of recent advances in the field.
 MTL 641-ADVANCED MECHANICAL METALLURGY 2. 3 credits
 Prerequisite: MTL 640. Continuation of MTL 640.
 MTL 642-ADVANCED MECHANICAL METALLURGY 3. 3 credits
 Identical with ESM 642. Prerequisite: MTL 641. Continuum theory of dislo-
 cation. Stress fields, displacement fields, and energies of simple shapes and finite
 arrays of dislocations. Continuous distributions of dislocations and their relation-
 ship to mechanical properties. Relation of the state of dislocation to the geometry
 of deformed lattices.
 MTL 650-METALLURGICAL THERMODYNAMICS. 3 credits
 Prerequisite: MTL 550. Thermodynamics of metallurgical systems; surfaces in
 solids, irreversible processes.
 MTL 651-ADVANCED TOPICS IN CORROSION. 3 credits
 Prerequisite: MTL 551. Theories and mechanisms of corrosion. Current literature
 on oxidation and corrosion.
 MTL 660-ADVANCED X-RAY DIFFRACTION 1. 3 credits
 Prerequisite: MTL 560. X-ray diffraction as applied to materials.
 MTL 661-ADVANCED X-RAY DIFFRACTION 2. 3 credits
 Prerequisite: MTL 660. Continuation of MTL 660.
 MTL 662-TRANSMISSION ELECTRON MICROSCOPY. 3 credits
 Prerequisite: MTL 560. Kinematical theory and dynamical theory of contrast
 from thin crystalline foils.
 MTL 670-SEMINAR IN METALLURGY. 1 credit
 May be repeated with change of content. This course is graded on an S/U basis.
 MTL 671-SEMINAR IN METALLURGY AND CERAMIC SCIENCE.
 1 to 2 credits
 MTL 675-SPECIAL TOPICS IN METALLURGICAL ENGINEERING. 1 to 6 credits
 May be repeated with change of content up to a maximum of 9 credits.
 MTL 680-ATOMIC PROCESSES IN CRYSTALLINE CERAMICS. 3 credits
 Ionic and covalent bonding, crystalline defect state, diffusion, ionic conductivity,
 and phase transformations in ceramics. Reactions of solids, gases, and liquids
 within ceramic systems.
 MTL 681-ELECTRONIC PROCESSES IN CRYSTALLINE CERAMICS. 3 credits