Physics of Solid Solution Strengthening

ISBN-13: 9781468407594 / Angielski / Miękka / 2012 / 306 str.

E. Collings

Opis

This book is the proceedings of a Symposium entitled "The Physics of Solid-Solution Strengthening in Alloys" which was held at McCormick Place, Chicago, on October 2, 1973, in association with a joint meeting of the American Society for Metals (ASM) and The Metallurgical Society (TMS) of the American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME). The symposium, which was initiated and organized by the editors of this volume, was sponsored by the Committee on Alloy Phases, Institute of Metals Division, TMS, AIME, and the Flow and Fracture Section of the Materials Science Division, ASM. The discipline of Alloy Design has been very active in recent years, during which considerable stress has been placed on the roles of crystallography and microstructure in the rationalization and prediction of properties. Underestimated as a component of alloy design, however, has been the importance of physical property studies, even though physical property measurements have tradi- tionally been employed to augment direct or x-ray observations in the determination of phase equilibrium (and, indeed, metastable equilibrium) boundaries.

Spis treści

Strengthening of Alpha Titanium by the Interstitial Solutes C, N, and O.- Abstract.- 1. Introduction.- 2. Experimental Data.- 3. Deformation Kinetics.- 4. Nature of the Interaction Between Moving Dislocations and Interstitial Solutes.- 5. Other Considerations.- Acknowledgment.- References.- Solution Hardening by Interstitials in Close-Packed Metals.- Abstract.- 1. Introduction.- 2. Solution Hardening Theories.- 3. Experimental Results: Interstitial Hardening in Close-Packed Metals.- 4. Dislocation-Solute Interaction Energies.- 5. Discussion.- 6. Conclusions.- References.- Interatomic Potentials and Defect Energetics in Dilute Alloys.- Abstract.- 1. Introduction.- 2. Interatomic Potentials.- 3. Relaxation Calculation.- 4. Impurity-Vacancy Binding Energy.- 5. Activation Energy for Impurity Diffusion.- 6. Discussion.- Acknowledgment.- References.- Point Defect-Dislocation Interactions Arising from Nonlinear Elastic Effects.- Abstract.- 1. Introduction.- 2. Nonlinear Elastic Dislocation Fields.- 3. The Atomic Model of a Dislocation.- 4. The Dislocation Field Arising from the Core.- 5. Dislocation-Solute Atom Interactions.- Acknowledgments.- References.- Computer Experiments on Impurity Effects in Alpha-Iron.- Abstract.- 1. Introduction.- 2. Computational Method.- 3. Misfit Metallic Impurities.- 4. Helium in Alpha-Iron.- 5. Carbon in Alpha-Iron.- Acknowledgments.- References.- Physical Principles of Solid Solution Strengthening in Alloys.- Abstract.- 1. Introduction.- 2. Binary Titanium-Base Alloys.- 3. Ti-B-Type Binary Alloys.- 4. Ti-T2-Type Binary Alloys.- 5. Ternary Alloys.- 6. Thermodynamics and Strengthening with Respect to Various Nontransition and Transition-Metal Solutes in Titanium.- 7. Mechanical Properties of Ti-B-Type Alloys.- 8. Strengthening Mechanisms.- 9. Mechanical Behavior of Ti-T2 -Type Alloys and Other BCC Transition Metal Alloys.- Acknowledgments.- References.- Application of Alloy Physics to Solution Strengthening.- Abstract.- 1. Introduction.- 2. Alloy Theory Concepts.- 3. Model Calculation.- 4. Discussion and Summary.- Acknowledgment.- References.- A Review of Solute Effects on the Elastic Moduli of BCC Transition Metals.- Abstract.- 1. Introduction.- 2. Definitions and Techniques.- 3. Review of Data for Single Crystals of BCC Substitutional Solid Solutions and Pure Transition Metals.- 4. Review of Single Crystal Fe Studies.- 5. Effects of Interstitial Hydrogen and Oxygen on V, Nb, and Ta.- 6. Application of Shock Wave and Hydrostatic Pressure Measurements to the Theory of Cohesion in the BCC Transition Metals.- 7. Discussion and Conclusions.- Acknowledgment.- References.- Use of the Fröhlich-Raimes and Other Electronic Models for the Physical Properties of Metals and Alloys.- Abstract.- 1. Introduction.- 2. Formulation of Fröhlich-Raimes Model.- 3. Linear Combination of Density of States.- 4. Hellman-Feynman Calculations.- 5. Discussion.- Acknowledgment.- References.- Unresolved Segregation Effects in Solid Solution Strengthening of Metals.- Abstract.- 1. Introduction.- 2. Evidence and Effects of Grain Boundary Segregation.- 3. Interdendritic Segregation.- 4. Conclusions.- References.- Contributors.- Author Index.- Materials Index.