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Defects in Crystalline Solids II

Defects in Crystalline Solids II. Instructor: Prof. Shashank Shekhar, Department of Materials Science and Engineering, IIT Kanpur. This is a continuation of the course Defects in Crystalline Solids (Part-I). In this part of the course, students should be able to understand dislocations with respect to particular crystal system (eg. FCC, BCC, HCP and also superlattices) and to relate dislocation to the plastic properties of the material, particularly, strengthening mechanisms. (from nptel.ac.in)

Lecture 04 - Dislocation Lock in FCC

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Advanced Concepts of Dislocation in FCC

Lecture 01 - Dislocation Structure in FCC

Lecture 02 - Partial Dislocations in FCC

Lecture 03 - Thompson Tetrahedron

Lecture 04 - Dislocation Lock in FCC

Lecture 05 - Other Defects in FCC (Twins and Frank Partial)

Lecture 06 - Dislocation Structure in BCC

Lecture 07 - Soft Core and Hard Core for Screw Dislocation in BCC

Lecture 08 - Dislocation Structure in HCP

Lecture 09 - Burger Vector and Partial Dislocation in HCP

Dislocation Structure in Ionic Crystals and Superlattices

Lecture 10 - Dislocation Structure in Ionic Crystals

Lecture 11 - Dislocation Structure in Superlattices

Lecture 12 - Stacking Fault and Kear-Wilsdorf Lock in Superlattices

Lecture 13 - Dislocation Interaction and Strain Hardening

Dislocation Interaction and Strengthening Mechanism and Nucleation of Dislocations

Lecture 14 - Origin and Nucleation of Dislocations

Lecture 15 - Multiplication of Dislocations

Lecture 16 - Interaction of Point Defects and Dislocation - Solid Solution Strengthening

Lecture 17 - Cottrell Atmosphere and Yield-point Phenomenon