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WJ Supplements - 2004
RESEARCH PAPERS
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Lattice, grain boundaries have a pronounced effect on material susceptibility to ductility-dip cracking. BY V. R. Dave et al. Published January 2004 Fatigue tests showed that large grain sizes produced relatively rough fracture surfaces with improved fatigue resistance. BY C. S. Kusko et al. Published January 2004 A combination of laser heating and roll welding were used to join aluminum Alloy 5052 and low-carbon steel. BY M. J. Rathod and M. Kutsuna Published January 2004 In a study to identify the cause of a weld defect in steel pipe manufacture, standard deviation of the travel distance appeared to have a strong relationship to defect density. BY J.-H. Choi et al. Published January 2004 A study was conducted to better understand the failure mechanism in brazed joints containing defects. BY Y. Flom and L. Wang Published January 2004 High-resolution scanning electron microscopy and electron backscattered diffraction are used to gain insight into elevated-temperature ductility in welded Ni-based alloys. BY M. G. Collins et al. Published February 2004 Alloy 2219 was used as a tool to better understand the effect of weld-metal solute content on liquation cracking. BY C. Huang and S. Kou Published February 2004 Crack closure measurements were used to help explain the relationship between crack growth rate and increased stress ratio. BY C. S. Kusko et al. Published February 2004 The possibility of making sound welds with satisfactory dilution was investigated using laser beam welding with a stainless steel filler metal. BY S. Missori et al. Published February 2004 Tests conducted under various conditions with a proprietary brazing foil established optimum process variables. BY X. Huang and N. L. Richards Published March 2004 Theoretical analysis of the heat source can be an effective tool in predicting problems associated with thermal stress in thick-plate welds. BY N.T. Nguyen et al. Published March 2004 An analytical model was developed to predict nitrogen absorption in the weld pool under various melting conditions. BY A. Gruszczyk Published March 2004 The acceptability of brazed joints in aluminum heat exchanges was evaluated through predictive modeling and empirical input. BY D. P. Sekulic tl al. Published March 2004 A high fraction solid in the weld metal during solidification is observed as a condition for cracking to occur. BY C. Huang and S. Kou Published April 2004 A model for expulsion prediction considers the mechanical and metallurgical interaction during nugget formation. BY J. Senkara et al. Published April 2004 Separate models for spot welding and adhesive bonding were combined without modification to predict behavior of the weld-bonding process. BY M. N. Cavalli et al. Published April 2004 Ultrasonic welding is used for rapid prototypings. BY C. Doumanidis and Y. Gao Published April 2004 An investigation was made to find the optimum energy interaction between laser beam and gas metal arc welding processes. BY M. El Rayes et al. Published May 2004 Kapton® film is studied to determine its accuracy in the measurement of spot diameter at the focal plane. BY P. W. Fuerschbach et al. Published May 2004 Using a weld simulation technique, a relationship between thermal characteristics and the heat-affected zone was evaluated. BY O. M. Akselsen et al. Published May 2004 A 3-D transient thermo-fluid model was used to simulate bead-on-plate and T-joints. BY Z. Cao et al. Published June 2004 In this study, plasticity-based distortion analysis successfully predicted total angular distortion. BY G. H. Jung and C. L. Tsai Published June 2004 A cold-rolled steel was used as a transition material between aluminum and steel for these resistance spot welding experiments. BY X. Sun et al. Published June 2004 A cold-rolled transitional material was used to assist in the resistance welding of aluminum to steel. BY X. Sun and M. A. Khaleel Published July 2004 Various gases, some enriched with hydrogen, were tested to determine if penetration could be increased. BY M. Marya et al. Published July 2004 Techniques were tested to control cumulative plastic strain. BY G. H. Jung and C. L. Tsai Published July 2004 Three solid-state joining processes and quality problems analogous to kissing bond formation when joining aluminum were investigated. BY A. Oosterkamp et al. Published August 2004 A study was made of the dynamic recrystallization and the related microstructure of a friction welded aluminum alloy under an electrostatic field BY L. Fu and S. G. Du Published August 2004 The 2004 AWS Adams Lecture explored whether experimentation is required when developing consumables for new steels, or if modeling is sufficient. BY H. K. D. H. Bhadeshia. Published September 2004 A process for examining phase transformations in the heat-affected zone in real-time was investigated. BY J. W. Elmer et al. Published September 2004 Rare earth elements were examined as an effective means of trapping hydrogen in weld metal. BY C. A. Lensing et al. Published September 2004 Artificial neural network models were used to predict optimum weld metal composition for maximum toughness. BY M. Murugananth et al. Published September 2004 The friction stir welding process was successfully used to weld aluminum to steel. BY K. Kimapong and T. Watanabe Published October 2004 A nonreactive, nonmelting layer stabilized lance combustion and improved cutting steels. BY H. Wang et al. Published October 2004 The physical and metallurgical characteristics of gadolinium-enriched stainless steel weld metal were investigated to determine the alley's usefulness in containing spent nuclear fuel. BY J. N. DuPont et al. Published November 2004 Hardness, tensile, and impact tests were conducted on a nickel alloy flux cored electrode to determine its suitability as a substitute for comparable covered electrodes. BY H. G. Svoboda et al. Published November 2004 Effects of Fusion Zone Size on Failure Modes and Static Strength of Aluminum Resistance Spot Welds Various aluminum spot welds were investigated to determine how size might affect failure mode. BY X. Sun et al. Published November 2004 Nickel-based, gadolinium-enriched alloys showed improved hot ductility and cracking resistance compared to Gd-enriched stainless steels. BY J. N. DuPont et al. Published December 2004 A transient numerical model was developed to investigate the dynamic behavior of a completely penetrated GTAW joint. BY C. S. Wu et al. Published December 2004 A time-frequency analysis method was developed to identify process stability and welding quality of short-circuit GMAW. BY Y. X. Chu et al. Published December 2004 |