Fundamentals of Creep in Metals and Alloys


  • Michael Kassner, Ph.D., Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA, USA
  • Michael Kassner, Ph.D., Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA, USA

Creep refers to the slow, permanent deformation of materials under external loads, or stresses. It explains the creep strength or resistance to this extension. This book is for experts in the field of strength of metals, alloys and ceramics. It explains creep behavior at the atomic or “dislocation defect” level. This book has many illustrations and many references. The figure formats are uniform and consistently labeled for increased readability. This book is the second edition that updates and improves the earlier edition.
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Researchers and practitioners including metallurgists, ceramists, industrial designers, aerospace R&D personnel, and structural engineers from a wide range of fields and industry sectors.


Book information

  • Published: November 2008
  • Imprint: ELSEVIER
  • ISBN: 978-0-08-047561-5

Table of Contents

1.0 IntroductionA. Description of CreepB. Objectives2.0 Five-Power-Law CreepA. Macroscopic Relationships1. Activation Energy and Stress Exponents2. Influence of the Elastic Modulus3. Stacking Fault Energy and Summary4. Natural-Three-Power Law5. Substitutional Solid SolutionsB. Microstructural Observations1. Subgrain Size, Frank Network Dislocation Density, Subgrain Misorientation Angle, and the Dislocation Separation Within the Subgrain Walls in Steady-State Structures2. Constant-Structure Equations3. Primary Creep Microstructures4. Creep Transient Experiments5. Internal stressC. Rate-Controlling Mechanisms1. Introduction2. Dislocation Microstructure and the Rate Controlling Mechanism 3. In-Situ and Microstructure-Manipulation Experiments4. Additional Comments on Network Strengthening D. Other Effects on Five-Power-Law Creep1. Large Strain Creep Deformation and Texture Effects2. Effect of Grain Size3. Impurity and Small Quantities of Strengthening Solutes4. Sigmoidal Creep3.0 Diffusional Creep4.0 Harper Dorn Creep A. The Size Effect B. The Effect of Impurities5.0 Three-Power-Law Viscous Glide Creep, by M.-T. Perez-Prado and M.E. Kassner6.0. Superplasticity, by M.-T. Perez-Prado and M.E. Kassner A. Introduction B. Characteristics of Fine Structure Superplasticity C. Microstructure of Fine Structure Superplastic Materials 1. Grain Size and Shape 2. Presence of a Second Phase 3. Nature and Properties of Grain Boundaries D. Texture Studies in Superplasticity E. High Strain Rate Superplasticity (HSRS) 1. High Strain Rate Superplasticity in Metal-Matrix Composites 2. High Strain Rate Superplasticity in Mechanically Alloyed Materials F. Superplasticity in Nano and Submicrocrystalline Materials7.0 Recrystallization A. Introduction B. Discontinuous Dynamic Recrystallization (DRX) C. Geometric Dynamic Recrystallization D. Particle Stimulated Nucleation (PSN) E. Continuous Reactions8.0 Creep Behavior of Particle Strengthened Alloys A. Introduction and TheoryB. Small Volume Fraction Particles that are Coherent and Incoherent with Small Aspect Ratios 1. Introduction and Theory 2. Local and General Climb 3. Detachment Model 4. Constitutive Relationships 5. Microstructural Effects 6. Coherent Particles9.0 Creep of Intermetallics, by M.-T. Perez-Prado and M.E. Kassner A. Introduction B. Titanium Aluminides 1. Introduction 2. Rate Controlling Creep Mechanisms in FL TiAl Intermetallics During “Secondary” Creep 3. Primary Creep in FL Microstructures 4. Tertiary Creep in FL Microstructures C. Iron Aluminides 1. Introduction 2. Anomalous Yield Point Phenomenon 3. Creep Mechanisms 4. Strengthening Mechanisms D. Nickel Aluminides 1. Ni3Al 2. NiAl10.0 Creep Fracture A. Background B. Cavity Nucleation 1. Vacancy Accumulation 2. Grain Boundary Sliding 3. Dislocation Pile-Ups 4. Location C. Growth 1. Grain Boundary Diffusion Controlled Growth 2. Surface Diffusion Controlled Growth 3. Grain Boundary Sliding 4. Constrained Diffusional Cavity Growth 5. Plasticity 6. Coupled Diffusion and Plastic Growth 7. Creep Crack Growth 8. Other Considerations 8. Other Considerations