Hot Cracking Phenomena in Welds
This is the second in a series of compendiums devoted to weld hot cracking phenomena, where this subject has been further scrutinized, bringing to bare the most current thoughts on this complex and diverse subject. With 22 technical papers in total, this book is divided in such a way that specific classifications of hot cracks are examined in detail, including solidification, liquation, and ductility dip cracking. The first chapter looks at solidification cracking theory, applying the most modern approaches to modelling weld solidification. Also provided here is a comprehensive review of cracking models. This is followed by two chapters characterizing solidification cracking behaviour for specific alloy systems: ferrous plus nickel-based alloys and aluminium alloys, respectively. The fourth chapter considers liquation cracking in ferrous alloys, and the fifth examines ductility-dip cracking. For engineers and scientists involved in materials research and development, this book provides both new insight and a broad overview of hot cracking phenomena in welds. The contributions additionally give numerous individual solutions and helpful advice for welding engineers to avoid hot cracking in practice. Furthermore, this book can serve as a useful teaching aid for upper level metallurgical, welding and mechanical engineering students.
Contents
Part I: Solidification Cracking Theory
In Search of the Predicition of Hot Cracking in Aluminum Alloys
Application of the Rappaz-Drezet-Gremaud Hot Tearing
Criterion to Welding of Aluminum Alloys
Weld Solidification Cracking: Critical Conditions for Crack
Initiation and Growth
Consideration of the Welding Process as a Thermo-Physical
Mechanism to Control Cracking in Weldments
Determination of Critical Strain Rate for Solidification
Cracking by Numerical Simulation
Part II: Solidification Cracking of Ferrous and Nickel-Base Alloys
Classification and Mechanisms of Cracking in Welding
High-Alloy Steels and Nickel Alloys in Brittle Temperature
Ranges
Submerged Arc Welding أ¢â‚¬â€œ A Test for Centerline Cracking
Influence of Local Weld Deformation on the
Solidification Cracking Susceptibility of a Fully Austenitic
Stainless Steel
Weld Solidification Cracking in Solid-Solution Strengthened
Ni-Base Filler Metals
Hot Cracking Susceptibility of Ni-Base Alloy Dissimilar
Metal Welds
Evaluation of Weld Solidification Cracking in Ni-Base
Superalloys Using the Cast Pin Tear Test
SAW Cold Wire Technology- Economic Alternative for
Joining Hot Crack Sensitive Nickel-Base Alloys
Part III: Solidification Cracking of Aluminium Alloys
Hot Tearing During Laser Butt Welding of 6xxx Aluminium
Alloys: Process Optimisation and 2D/3D Characterisation of Hot Tears
The Integral Approach- a Tailored Method to Optimize
Structural Behavior and Weldability
Weld Parameter and Minor Element Effects on Solidification
Crack Initiation in Aluminum
Using Simulation for Investigations of Hot Cracking
Phenomena in Resistance Spot Welding of 6xxx Aluminium
Alloys (AA6016 and AA6181)
Part IV: Liquation Cracking
Evaluating Hot Cracking Susceptibility of Ni-Base SAW
Consumables for Welding of 9% Ni Steel
Assessment of HAZ Hot Cracking in a High Nitrogen
Stainless Steel
Crack Appearance in Hot Rolled Billets
Part V: Ductility-Dip Cracking
Effect of Filler Metal La Additions on Micro-Cracking
Multi-Pass Laser Overlay Weld Metal of Alloy 690
Ductility-Dip Cracking in High Chromium, Ni-Base
Filler Metals
Thermodynamic and Kinetic Approach to Ductility-Dip
Cracking Resistance Improvement of Ni-base Alloy
ERNiCrFe-7: Effect of Ti and Nb Additions
links
http://rapidshare.com/files/12580403/hcpiw.rar.html
or
http://ifile.it/m68dvq/hot_cracking_phenomena_in_welds.pdf
This is the second in a series of compendiums devoted to weld hot cracking phenomena, where this subject has been further scrutinized, bringing to bare the most current thoughts on this complex and diverse subject. With 22 technical papers in total, this book is divided in such a way that specific classifications of hot cracks are examined in detail, including solidification, liquation, and ductility dip cracking. The first chapter looks at solidification cracking theory, applying the most modern approaches to modelling weld solidification. Also provided here is a comprehensive review of cracking models. This is followed by two chapters characterizing solidification cracking behaviour for specific alloy systems: ferrous plus nickel-based alloys and aluminium alloys, respectively. The fourth chapter considers liquation cracking in ferrous alloys, and the fifth examines ductility-dip cracking. For engineers and scientists involved in materials research and development, this book provides both new insight and a broad overview of hot cracking phenomena in welds. The contributions additionally give numerous individual solutions and helpful advice for welding engineers to avoid hot cracking in practice. Furthermore, this book can serve as a useful teaching aid for upper level metallurgical, welding and mechanical engineering students.
Contents
Part I: Solidification Cracking Theory
In Search of the Predicition of Hot Cracking in Aluminum Alloys
Application of the Rappaz-Drezet-Gremaud Hot Tearing
Criterion to Welding of Aluminum Alloys
Weld Solidification Cracking: Critical Conditions for Crack
Initiation and Growth
Consideration of the Welding Process as a Thermo-Physical
Mechanism to Control Cracking in Weldments
Determination of Critical Strain Rate for Solidification
Cracking by Numerical Simulation
Part II: Solidification Cracking of Ferrous and Nickel-Base Alloys
Classification and Mechanisms of Cracking in Welding
High-Alloy Steels and Nickel Alloys in Brittle Temperature
Ranges
Submerged Arc Welding أ¢â‚¬â€œ A Test for Centerline Cracking
Influence of Local Weld Deformation on the
Solidification Cracking Susceptibility of a Fully Austenitic
Stainless Steel
Weld Solidification Cracking in Solid-Solution Strengthened
Ni-Base Filler Metals
Hot Cracking Susceptibility of Ni-Base Alloy Dissimilar
Metal Welds
Evaluation of Weld Solidification Cracking in Ni-Base
Superalloys Using the Cast Pin Tear Test
SAW Cold Wire Technology- Economic Alternative for
Joining Hot Crack Sensitive Nickel-Base Alloys
Part III: Solidification Cracking of Aluminium Alloys
Hot Tearing During Laser Butt Welding of 6xxx Aluminium
Alloys: Process Optimisation and 2D/3D Characterisation of Hot Tears
The Integral Approach- a Tailored Method to Optimize
Structural Behavior and Weldability
Weld Parameter and Minor Element Effects on Solidification
Crack Initiation in Aluminum
Using Simulation for Investigations of Hot Cracking
Phenomena in Resistance Spot Welding of 6xxx Aluminium
Alloys (AA6016 and AA6181)
Part IV: Liquation Cracking
Evaluating Hot Cracking Susceptibility of Ni-Base SAW
Consumables for Welding of 9% Ni Steel
Assessment of HAZ Hot Cracking in a High Nitrogen
Stainless Steel
Crack Appearance in Hot Rolled Billets
Part V: Ductility-Dip Cracking
Effect of Filler Metal La Additions on Micro-Cracking
Multi-Pass Laser Overlay Weld Metal of Alloy 690
Ductility-Dip Cracking in High Chromium, Ni-Base
Filler Metals
Thermodynamic and Kinetic Approach to Ductility-Dip
Cracking Resistance Improvement of Ni-base Alloy
ERNiCrFe-7: Effect of Ti and Nb Additions
links
http://rapidshare.com/files/12580403/hcpiw.rar.html
or
http://ifile.it/m68dvq/hot_cracking_phenomena_in_welds.pdf