Welding metallurgy and weldability / / John C. Lippold

• Record Nr.: UNINA9910807048503321
• Autore: Lippold John C.
• Pubbl/distr/stampa: Hoboken, New Jersey : , : Wiley, , 2015; ©2015
• ISBN: 1-118-96031-9; 1-118-96033-5; 1-118-96032-7
• Descrizione fisica: 1 online resource (421 p.)
• Classificazione: TEC021000
• Disciplina: 669/.142
• Soggetti: Stainless steel - Weldability; Stainless steel - Metallurgy; Nickel - Weldability; Nickel - Metallurgy; Nickel alloys - Weldability
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references at the end of each chapters and index.
• Nota di contenuto: Welding Metallurgy and Weldability; Copyright; Contents; Preface; Author Biography; Chapter 1 Introduction; 1.1 Fabrication-Related Defects; 1.2 Service-Related Defects; 1.3 Defect Prevention and Control; References; Chapter 2 Welding Metallurgy Principles; 2.1 Introduction; 2.2 Regions of a Fusion Weld; 2.3 Fusion Zone; 2.3.1 Solidification of Metals; 2.3.1.1 Solidification Parameters; 2.3.1.2 Solidification Nucleation; 2.3.1.3 Solidification Modes; 2.3.1.4 Interface Stability; 2.3.2 Macroscopic Aspects of Weld Solidification; 2.3.2.1 Effect of Travel Speed and Temperature Gradient; 2.3.3 Microscopic Aspects of Weld Solidification2.3.3.1 Solidification Subgrain Boundaries (SSGB); 2.3.3.2 Solidification Grain Boundaries (SGB); 2.3.3.3 Migrated Grain Boundaries (MGB); 2.3.4 Solute Redistribution; 2.3.4.1 Macroscopic Solidification; 2.3.4.2 Microscopic Solidification; 2.3.5 Examples of Fusion Zone Microstructures; 2.3.6 Transition Zone (TZ); 2.4 Unmixed Zone (UMZ); 2.5 Partially Melted Zone (PMZ); 2.5.1 Penetration Mechanism; 2.5.2 Segregation ; Mechanism; 2.5.2.1 Gibbsian Segregation; 2.5.2.2 Grain Boundary Sweeping; 2.5.2.3 Pipeline Diffusion; 2.5.2.4 Grain Boundary Wetting; 2.5.3 Examples of PMZ formation2.6 Heat Affected Zone (HAZ); 2.6.1 Recrystallization and Grain Growth; 2.6.2 Allotropic Phase Transformations; 2.6.3 Precipitation Reactions; 2.6.4 Examples of HAZ Microstructure; 2.7 Solid-State Welding; 2.7.1 Friction Stir Welding; 2.7.2 Diffusion Welding; 2.7.3 Explosion Welding; 2.7.4 Ultrasonic Welding; References; Chapter 3 Hot Cracking; 3.1 Introduction; 3.2 Weld Solidification Cracking; 3.2.1 Theories of Weld Solidification Cracking; 3.2.1.1 Shrinkage-Brittleness Theory; 3.2.1.2 Strain Theory; 3.2.1.3 Generalized Theory; 3.2.1.4 Modified Generalized Theory3.2.1.5 Technological Strength Theory; 3.2.1.6 Commentary on Solidification Cracking Theories; 3.2.2 Predictions of Elemental Effects; 3.2.3 The BTR and Solidification Cracking Temperature Range; 3.2.4 Factors that Influence Weld Solidification Cracking; 3.2.4.1 Composition Control; 3.2.4.2 Grain Boundary Liquid Films; 3.2.4.3 Effect of Restraint; 3.2.5 Identifying Weld Solidification Cracking; 3.2.6 Preventing Weld Solidification Cracking; 3.3 Liquation Cracking; 3.3.1 HAZ Liquation Cracking; 3.3.2 Weld Metal Liquation Cracking; 3.3.3 Variables that Influence Susceptibility to Liquation Cracking3.3.3.1 Composition; 3.3.3.2 Grain Size; 3.3.3.3 Base Metal Heat Treatment; 3.3.3.4 Weld Heat Input and Filler Metal Selection; 3.3.4 Identifying HAZ and Weld Metal Liquation Cracks; 3.3.5 Preventing Liquation Cracking; References; Chapter 4 Solid-State Cracking; 4.1 Introduction; 4.2 Ductility-Dip Cracking; 4.2.1 Proposed Mechanisms; 4.2.2 Summary of Factors That Influence DDC; 4.2.3 Quantifying Ductility-Dip Cracking; 4.2.4 Identifying Ductility-Dip Cracks; 4.2.5 Preventing DDC; 4.3 Reheat Cracking; 4.3.1 Reheat Cracking in Low-Alloy Steels
• Sommario/riassunto: "This book describes the weldability aspects of many structural materials used in a wide variety of engineering structures, including steels, stainless steels, Ni-base alloys, and Al-base alloys. The basic mechanisms of weldability are described and methods to improve weldability are described. Specific topics include solidification and liquation cracking, solid-state cracking, hydrogen cracking, fracture and fatigue, and corrosion. Methods for interpretation of weld failures using computational and characterization techniques are described"--; "Book deals with a wide range of materials and weldability issues"--