WJ Supplements - Page 2

 RESEARCH PAPERS
Research Papers posted after 12/98 are available in PDF format ONLY. You will need Adobe Acrobat Reader to view the PDF version of the document.

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  • Weld Microstructure Development and Properties of Precipitation-Strengthened Martensitic Stainless Steels
    The cracking behavior and mechanical properties are discussed in terms of microstructural evolution. BY J. A. BROOKS AND W. M. GARRISON, Jr.
    Posted 11/99

  • A Study on the Role of Adhesives in Weld-Bonded Joints
    Stresses in weld-bonded joints with adhesives of different elastic moduli and thicknesses are obtained by a three-dimensional finite element method. BY B. H. CHANG, Y. W. SHI AND S. J. DONG
    Posted 11/99

  • Welding Consumable Development for a Cryogenic (4 K) Application
    Research led to the development of a nitrogen- and manganese-modified, high- nickel stainless steel alloy for a demanding cryogenic magnet application. BY S. F. KANE, A. L. FARLAND, T. A. SIEWERT AND C. N. McCOWAN
    Posted 11/99

  • Analytical Solutions for Transient Temperature of Semi-Infinite Body Subjected to 3-D Moving Heat Sources
    Analytical solutions for 3-D moving heat sources were derived and experimentally validated by transient temperature measured at various points in bead-on-plate specimens and by means of weld pool geometry. BY N. T. NGUYEN, A. OHTA, K. MATSUOKA, N. SUZUKI AND Y. MAEDA
    Posted 11/99

  • Material Flow Behavior during Friction Stir Welding of Aluminum
    Tracers embedded in the weld path and a 3stop action2 technique give insight into the movement of material during friction stir welding. BY K. COLLIGAN
    Posted 11/99

  • Microstructural Development and Solidification Cracking Susceptibility of a Stabilized Stainless Steel
    Solidification modeling results are utilized to relate fusion zone composition to mushy zone characteristics and resultant solidification cracking susceptibility in Alloy 20Cb-3. BY J. N. DuPONT
    Posted 11/99

  • Pulsed Nd:YAG Laser Seam Welding of Zinc-Coated Steel
    Successful welds without gas-formed porosity are made in tightly clamped lap joints of zinc-coated sheet steel. BY Y-F. TZENG
    Posted 11/99

  • Determination of Mechanical and Fracture Properties of Laser Beam Welded Steel Joints
    Flat microtensile specimens were found suitable for determining the mechanical properties of similar and dissimilar laser beamweld joints. BY G. ÇAM, S. ERIM, Ç. YENI AND M. KOÇAK
    Posted 11/99

  • Porosity, Underfill and Magnesium Loss during Continuous Wave Nd:YAG Laser Welding of Thin Plates of Aluminum Alloys 5182 and 5754
    Keyhole stability is found to play a major role in porosity formation. BY M. PASTOR, H. ZHAO, R. P. MARTUKANITZ AND T. DEBROY
    Posted 11/99

  • All-Weld-Metal Design for AWS E10018M, E11018M and E12018M Type Electrodes
    The best combination of alloying elements to provide optimum toughness and strength is investigated. BY E. S. SURIAN AND L. A. de VEDIA
    Posted 11/99

  • Welding Aluminum Alloy 6061 with the Opposing Dual-Torch GTAW Process
    A modified welding system achieves good joint penetration and controlled heat input with the gas tungsten arc process. BY Y. M. ZHANG AND S. B. ZHANG
    Posted 11/99

  • A Martensite Boundary on the WRC-1992 Diagram
    A martensite boundary, based upon magnetic measurements and longitudinal face bend tests, is proposed for the WRC-1992 diagram. BY D. J. KOTECKI
    Posted 11/99

  • Strength and Structure of Furnace-Brazed Joints between Aluminum and Stainless Steel
    The causes of joint brittleness are investigated and ways to prevent it are suggested. BY M. ROULIN, J. W. LUSTER, G. KARADENIZ AND A. MORTENSEN
    Posted 11/99

  • Experimental Approach to Selection of Pulsing Parameters in Pulsed GMAW
    A method for selection of process parameters in pulsed GMAW helps to efficiently develop welding procedures. BY S. SUBRAMANIAM, D. R. WHITE, J. E. JONES AND D. W. LYONS
    Posted 11/99

  • Welding Distortion of a Thin-Plate Panel Structure
    The effect of welding sequence on panel distortion is evaluated. BY C. L. TSAI, S. C. PARK AND W. T. CHENG
    Posted 11/99

  • Approximate Stress Intensity Factors and Notch Stresses for Common Spot-Welded Specimens
    The formulas developed will be helpful for testing, design and optimization of fatigue-resistant spot welds. BY S. ZHANG
    Posted 11/99

  • Effect of Enhanced Convection on the Microstructure of Al-Cu-Li Welds
    Microstructural analysis of welds made at different gravity levels reveal changes in the narrow band of fine equiaxed grains along the fusion zone. BY D. K. AIDUN AND J. P. DEAN
    Posted 11/99

  • Directivity Evaluation of an Artificial in a Simulated Butt Joint by the Visualization Method
    The directivity of ultrasonic waves is investigated. BY Y. H. NAM
    Posted 11/99

  • Nature and Evolution of the Fusion Boundary in Ferritic-Austenitic Dissimilar Weld Metals, Part 1 Nucleation and Growth
    A model for heterogeneous nucleation along the fusion boundary is proposed. BY T. W. NELSON, J. C. LIPPOLD AND M. J. MILLS
    Posted 11/99

  • Digital Image Correlation for Determination of Weld and Base Metal Constitutive Behavior
    A new method to determine the constitutive behavior for all of the materials comprising a weld is described. BY A. P. REYNOLDS AND F. DUVALL
    Posted 11/99

  • Laser Welding of Thin Sheet Steel with Surface Oxidation
    Surface oxidation enhances the absorption of laser energy significantly and has little influence on the mechanical properties of laser welds. BY J. XIE AND A. KAR
    Posted 11/99

  • Effects of Welding Parameters and Electrode Atmospheric Exposure on the Diffusible Hydrogen Content of Gas Shielded Flux Cored Arc Welds
    A variety of electrodes were subjected to atmospheric exposure tests to determine their susceptibility to moisture absorption. BY D. D. HARWIG, D. P. LONGENECKER AND J. H. CRUZ
    Posted 11/99

  • Arc Sensing for Defects in Constant-Voltage Gas Metal Arc Welding
    A method for detecting flaws in automatic, constant-voltage gas metal arc welding using the process current and voltage signals was developed. BY T. P. QUINN, C. SMITH, C. N. McCOWAN, E. BLACHOWIAK AND R. B. MADIGAN
    Posted 11/99

  • Effects of Superplastic Deformation on the Diffusion Welding of SuperDux 65 Stainless Steel
    A two-stage diffusion process resulted in greatly improved weld strength. BY M. S. YEH, Y. H. TSENG AND T. H. CHUANG
    Posted 11/99

  • Critical Specimen Sizes for Tensile-Shear Testing of Steel Sheets
    Strength measurement of spot welds depends on both weld quality and testing specimens. BY M. ZHOU, S. J. HU AND H. ZHANG
    Posted 11/99

  • An Investigation of the Interaction of a Molten Droplet with a Liquid Weld Pool Surface: A Computational and Experimental Approach
    The model shows droplet transfer strongly influences the flow pattern within the gas metal arc weld pool. BY M. H. DAVIES, M. WAHAB and M. J. PAINTER
    Posted 12/99 | Published 1/00

  • A Method for Studying Weld Fusion Boundary Microstructure Evolution in Aluminum Alloys
    Nondendritic equiaxed grain microstructures were simulated in Li-bearing Alloy 2195. BY A. KOSTRIVAS AND J. C. LIPPOLD
    Posted 12/99 | Published 1/00

  • A Hot-Cracking Mitigation Technique for Welding High-Strength Aluminum Alloy
    The mechanical strain associated with hot cracking is significantly reduced with the introduction of a heat sink trailing a gas tungsten arc welding torch. BY Y. P. YANG, P. DONG, J. ZHANG AND X. TIAN
    Posted 12/99 | Published 1/00

  • A New Approach to Improving the Properties of Brazed Joints
    Improvement of mechanical properties was achieved by a reinforcement composed of a system of parallel wires. BY B. ZORC AND L. KOSEC
    Posted 12/99 | Published 1/00

  • Reconsidering the Basicity of a FCAW Consumable—Part 1: Solidified Slag Composition of a FCAW Consumable as a Basicity Indicator
    A basicity index for a flux cored electrode was developed, taking into consideration the metal sheath, fill ingredients and weld metal composition. BY E. BAUNÉ, C. BONNET AND S. LIU
    Posted 2/00 | Published 3/00

  • Reconsidering the Basicity of a FCAW Consumable—Part 2: Verification of the Flux/Slag Analysis Methodology for Weld Metal Oxygen Control
    The prediction model is verified by experimental results. BY E. BAUNÉ, C. BONNET AND S. LIU
    Posted 2/00 | Published 3/00

  • Magneto-Fluid Dynamic Control of Seam Quality in CO2 Laser Beam Welding
    Magnetically supported laser beam welding features increased process stability. BY M. KERN, P. BERGER AND H. HÜGEL
    Posted 2/00 | Published 3/00

  • Finite Element Analysis of Heat Flow in Single-Pass Arc Welds
    Thermal efficiency is used to quantify the energy made available by the arc. BY E. A. BONIFAZ
    Posted 4/00 | Published 5/00

  • Partially Melted Zone in Aluminum Welds ‹ Liquation Mechanism and Directional Solidification
    Liquation is initiated eutectically and intensified by melting above the eutectic temperature, and the resultant liquid solidifies upward and toward the weld regardless of its position relative to the weld. BY C. HUANG AND S. KOU
    Posted 4/00 | Published 5/00

  • Visualization of Marangoni Convection in Simulated Weld Pools
    Marangoni convection resembling that in weld pools is revealed by flow visualization. BY C. HUANG AND S. KOU
    Posted 4/00 | Published 5/00

  • The Influence of Working Fluid Physical Properties on Weld Qualification for In-Service Pipelines
    The effect of working fluid properties on test weld cooling rates for weld procedure qualification for active pipeline welding was investigated BY C. BY R. J. BELANGER AND B. M. PATCHETT
    Posted 7/00 | Published 8/00

  • Microstructural and Mechanical Characterization of Actively Brazed Alumina Tensile Specimens
    Alumina wetting and tensile specimens are brazed with Au-Ni-Mo-V active brazing alloys. BY F. M. HOSKING, C. H. CADDEN, N.Y.C. YANG, S. J. GLASS, J. J. STEPHENS, P. T. VIANCO AND C. A. WALKER
    Posted 7/00 | Published 8/00

  • Experiments to Simulate Effect of Marangoni Convection on Weld Pool Shape
    At high Peclet numbers, the pool bottom can be flat or even convex instead of concave. BY C. LIMMANEEVICHITR AND S. KOU
    Posted 7/00 | Published 8/00

  • Analysis of Aluminum Resistance Spot Welding Processes Using Coupled Finite Element Procedures
    Incrementally coupled finite element procedures that simulate the resistance spot welding process are suitable for analyzing a variety of important weld parameters. BY X. SUN AND P. DONG
    Posted 7/00 | Published 8/00

  • Analysis of an Arc Light Mechanism and Its Application in Sensing of the GTAW Process
    A theoretical model was developed that correlates arc light radiation with welding parameters
    Posted 8/00 | Published 9/00

  • Interfacial Reactions of Titanium and Aluminum during Diffusion Welding
    A preliminary investigation evaluated the feasibility of joining laminated composites using cold-roll bonding followed by diffusion weldingY BY J-G. LUO AND V. L. ACOFF
    Posted 8/00 | Published 9/00

  • Interfacial Reactions of Titanium and Aluminum during Diffusion Welding
    A preliminary investigation evaluated the feasibility of joining laminated composites using cold-roll bonding followed by diffusion weldingY BY J-G. LUO AND V. L. ACOFF
    Posted 8/00 | Published 9/00

  • Modeling of Projection Welding Processes Using Coupled Finite Element Analyses
    comprehensive thermal-electrical-mechanical analysis was performed to quantitatively simulate projection welding. BY X. SUN
    Posted 8/00 | Published 9/00


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