Hot cracking phenomena in welds
Author(s)
Bibliographic Information
Hot cracking phenomena in welds
Springer, c2005-
- [1]
- 2
- 3
- 4
- Other Title
-
Cracking phenomena in welds
Available at / 2 libraries
-
No Libraries matched.
- Remove all filters.
Note
Includes bibliographical references
Editor of 2: Thomas Böllinghaus, Horst Herold, Carl E. Cross, John C. Lippold
Editor of 3: John Lippold, Thomas Böllinghaus, Carl E. Cross
Editor of 4: Thomas Boellinghaus, John C. Lippold, Carl E. Cross
Title of 4: Cracking phenomena in welds
Description and Table of Contents
- Volume
-
4 ISBN 9783319284323
Description
This is the fourth volume in
the well-established series of compendiums devoted to the subject of weld hot
cracking. It contains the papers presented at the 4th International
Cracking Workshop held in Berlin in April 2014. In the context of this
workshop, the term "cracking" refers to hot cracking in the classical and
previous sense, but also to cold cracking, stress-corrosion cracking and
elevated temp. solid-state cracking. A variety of different cracking
subjects are discussed, including test standards, crack prediction, weldability
determination, crack mitigation, stress states, numerical modelling, and
cracking mechanisms. Likewise, many different alloys were investigated
such as aluminum alloys, copper-aluminum dissimilar metal, austenitic stainless
steel, nickel base alloys, duplex stainless steel, creep resistant steel, and
high strength steel.
Table of Contents
Aluminum and Magnesium Alloys.- Steels and Stainless Steels.- Nickel-Base Alloys.
- Volume
-
[1] ISBN 9783540223320
Description
Although the avoidance of hot cracking still represents a major topic in modern fabrication welding components, the phenomena have not yet been fully understood. Through the 20 individual contributions from experts all over the world the present state of knowledge about hot cracking during welding is defined, and the subject is approached from four different viewpoints. The first chapter provides an overview of the various hot cracking phenomena. Different mechanisms of solidification cracking proposed in the past decades are summarized and new insight is particularly given into the mechanism of ductility dip cracking. The effects of different alloying elements on the hot cracking resistance of various materials are shown in the second chapter and, as a special metallurgical effect, the initiation of stress corrosion cracking at hot cracks has been highlighted. The third chapter outlines how numerical analyses and other modelling techniques can be utilized to describe hot cracking phenomena and how such results might contribute to the explanation of the mechanisms. Various hot cracking test procedures are presented in the final chapter with a special emphasis on standardization. For the engineering and natural scientists in research and development the book provides both, new insight and a comprehensive overview of hot cracking phenomena in welds. The contributions additionally give numerous individual solutions and helpful advice for international welding engineers to avoid hot cracking in practice. Furthermore, it represents a very helpful tool for upper level metallurgical and mechanical engineering students.
Table of Contents
Phenomena and Mechanisms.- On the Origin of Weld Solidification Cracking.- New Insight into the Mechanism of Ductility-Dip Cracking in Ni-base Weld Metals.- Influence of Welding Speed on the Hot Cracking Resistance of the Nickel-Base Alloy NiCr25FeAlY During TIG-Welding.- The Role of Segregation of Oxygen in Welding Alloys of the INVAR Type.- Character of Hot Crack Formation During Welding of Cast Heat-Resistant Nickel Alloys.- Contribution to HAZ Liquation Cracking of Austenitic Stainless Steels.- Morphology of Hot Cracks in Single-Phase Weld Metal.- Metallurgy and Materials.- The Effect of Silicon and Iron on the Weldability of Ni-Co-Cr-Si HR-160 (R) Alloy.- The Influence of Different Nb-Contents on the Hot Cracking Susceptibility of Ni-Base Weld Metals Type 70/20.- Hot Cracks as Stress Corrosion Cracking Initiation Sites in Laser Welded Corrosion Resistant Alloys.- Modeling and Simulation.- Simulating and Predicting Weld Solidification Cracks.- Integrated Mechanical-Metallurgical Approach to Modeling of Solidification Cracking in Welds.- Influence of the Weld Pool Geometry on Solidification Crack Formation.- Testing and Standardization.- Recent Developments in Weldability Testing.- Hot Cracking Tests - The Route to International Standardization.- Value of Different Hot Cracking Tests for the Manufacturer of Filler Metals.- Influence of the Deformation Rate of Different Tests on Hot Cracking Formation.- Testing for Susceptibility to Hot Cracking on Gleeble (TM) Physical Simulator.- Scientific Bases of the International Standardization Project "Hot Cracking Tests for Welds".- Discussion and Evaluation of Some Extraordinary Cases of Hot Cracking.
- Volume
-
2 ISBN 9783540786276
Description
Failure of welded components can occur during service as well as during fabrication. Most common, analyses of the resistance of welded components against failure are targeted at crack avoidance. Such evaluations are increasingly carried out by modern weldability studies, i. e. considering interactions between the selected base and filler materials, structural design and welding process. Such weldability investigations are particularly targeted to prevent hot cracking, as one of the most common cracking phenomena occurring during weld fabrication. To provide an international information and discussion platform to combat hot cracking, an international workshop on Hot Cracking Phenomena in Welds has been created, based on an initiative of the Institute for Materials and Joining Technology at the Otto-von-Guericke University in Magdeburg and the Division V. 5 - Safety of Joined Components at the Federal Institute for Materials Research and Testing (BAM) in Berlin, Germany. The first workshop was organized in Berlin under the topics mechanisms and phenomena, metallurgy and materials, modelling and simulations as well as testing and standardization. It consisted of 20 individual contributions from eight countries, which were compiled in a book that found a very ready market, not only in the welding community. As a consequence of increasing interest, it has been decided to establish the Workshop on Hot Cracking Phenomena in Welds as a regular event every three years embedded in the International Institute of Welding (IIW). Attached to the IIW Commission IX and II Spring intermediate meetings, the second workshop was organized in March 2007.
Table of Contents
Solidification Cracking Theory.- In Search of the Prediction of Hot Cracking in Aluminium Alloys.- Application of the Rappaz-Drezet-Gremaud Hot Tearing Criterion to Welding of Aluminium 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.- 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 - A Test for Centreline 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.- 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 Aluminium.- Using Simulation for Investigations of Hot Cracking Phenomena in Resistance Spot Welding of 6xxx Aluminum Alloys (AA6016 and AA6181).- 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.- Ductility-Dip Cracking.- Effect of Filler Metal La Additions on Micro-Cracking in 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.
- Volume
-
3 ISBN 9783642168635
Description
This is the third in a series of compendiums devoted to the subject of weld hot cracking. It contains 22 papers presented at the 3rd International Hot Cracking Workshop in Columbus, Ohio USA in March 2010. In the context of this workshop, the term "hot cracking" refers to elevated temperature cracking associated with either the weld metal or heat-affected zone. These hot cracking phenomena include weld solidification cracking, HAZ and weld metal liquation cracking, and ductility-dip cracking. The book is divided into three major sections based on material type; specifically aluminum alloys, steels, and nickel-base alloys. Each of these sections begins with a keynote paper from prominent researchers in the field: Dr. Sindo Kou from the University of Wisconsin, Dr. Thomas Boellinghaus from BAM and the University of Magdeburg, and Dr. John DuPont from Lehigh University. The papers contained within include the latest insight into the mechanisms associated with hot cracking in these materials and methods to prevent cracking through material selection, process modification, or other means. The three Hot Cracking Phenomena in Welds compendiums combined contain a total of 64 papers and represent the best collection of papers on the topic of hot cracking ever assembled.
Table of Contents
Will be delivered later.
by "Nielsen BookData"