WJ Supplements - Page 6

 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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  • WELDING RESEARCH alloy 2219. Liquation Mechanisms in Multicomponent Aluminum Alloys during Welding
    Three mechanisms cover most, if not all, wrought aluminum alloys and, for a given alloy and temper, the mechanism can vary from heat to heat . BY C. HUANG AND S. KOU
    Posted 9/02  |  Published 10/02

  • Aging of Brazed Joints ‹ Interface Reactions in Base Metal/Filler Metal Couples ‹ Part 1: Low-Temperature Ag-Cu-Ti Filler Metal
    A study of filler metal/base metal interactions was conducted on brazements of alloys used in advanced heat engines. BY P. T. VIANCO, F. M. HOSKING, J. J. STEPHENS, C. A. WALKER, M. K. NEILSEN, S. J. GLASS, AND S. L. MONROE
    Posted 9/02  |  Published 10/02

  • Dual Beam Laser Welding
    An experiment in which a high-power CO2 laser beam was split into two equalpower beams that were then used as a welding heat source indicated the dualbeam laser could significantly improve weld quality. BY J. XIE
    Posted 9/02  |  Published 10/02

  • Microstructural Variations in a High-Strength Structural Steel Weld under Isoheat Input Conditions
    Weld bead morphologies influence weld cooling rate and hence the acicular ferrite content in steel . BY B. BASU AND R. RAMAN
    Posted 11/02  |  Published 11/02

  • The Effect of Multiple Postweld Heat Treatment Cycles on the Weldability of Waspaloy®
    Changes in grain boundary character distribution after multiple PWHT cycles were found to affect HAZ liquation cracking during repair welding. BY M. QIAN AND J. C. LIPPOLD
    Posted 11/02  |  Published 11/02

  • WELDING RESEARCH NOVEMBER 2002 -S 256 Aging of Braze Joints: Interface Reactions in Base Metal/Filler Metal Couples, Part II: High-Temperature Au-Ni-Ti Braze Alloy
    An examination of the effects of aging in brazed joints made with 81Au-17.5Ni- 1.5Ti filler metal and Thermo-Spanª or AISI Type 347 stainless steel base metals revealed excellent wetting and spreading. BY P. T. VIANCO, F. M. HOSKING, J. J. STEPHENS, C. A. WALKER, M. K. NEILSEN, S. J. GLASS, AND S. L. MONROE
    Posted 11/02  |  Published 11/02

  • Keyhole Double-Sided Arc Welding Process
    A process is developed for deep joint penetration welding in a narrow groove on plate up to 1/2-in. thick. BY Y. M. ZHANG, S. B. ZHANG, AND M. JIANG.
    Posted 11/02  |  Published 11/02

  • WELDING RESEARCH actual weldments. Introduction SUPPLEMENT TO THE WELDING JOURNAL, December 2002 Determination of Gradients in Mechanical Properties of 2.25Cr-1Mo Weldments Using Shear-Punch Tests
    A test technique was developed to more accurately determine mechanical properties of individual regions of the HAZ. BY V. KARTHIK, K. V. KASIVISWANATHAN, K. LAHA, AND B. RAJ
    Posted 11/02  |  Published 11/02

  • Chloride Contributions in Flux-Assisted GTA Welding of Magnesium Alloys
    Experiments demonstrated chlorides increased arc voltage, arc temperature, and weld penetration, with cadmium chloride being the most effective. BY M. MARYA AND G. R. EDWARDS
    Posted 11/02  |  Published 11/02

  • Weld Morphology and Thermal Modeling in Dual-Beam Laser Welding
    Weld morphology in dual-beam laser welding was investigated and mathematical modeling was performed to understand the impact of the heat flow pattern on dual-beam laser welds. BY J. XIE
    Posted 11/02  |  Published 11/02

  • Numerical Simulation of Sleeve Repair Welding of In-Service Gas Pipelines
    A model was developed to predict conditions for sucessful sleeve repair of in-service gas pipelines. BY I.-W. BANG, Y.-P. SON, K. H. OH, Y.-P. KIM, AND W.-S. KIM
    Posted 11/02  |  Published 11/02

  • WELDING RESEARCHS 18 Assessing the Effects of Residual Stresses on the Fatigue Strength of Spot Welds
    Residual stress at the nuggetÕs edge was taken into consideration in the evaluation of fatigue strength for spot welds of various shapes and dimensions. BY D. H. BAE, I. S. SOHN, AND J. K. HONG
    Posted 1/03  |  Published 1/03

  • WELDING RESEARCH Commentary on GMAW Parameter Selection Paper
    BY DAMIAN KOTECKI
    Posted 1/03  |  Published 1/03

  • WELDING RESEARCHS 18 Friction Stir Welding Studies on Mild Steel
    Process results, microstructures, and mechanical properties are reported. BY T. J. LIENERT, W. L. STELLWAG, JR., B. B. GRIMMETT, AND R. W. WARKE
    Posted 1/03  |  Published 1/03

  • WELDING RESEARCHS 18 Improved Ferrite Number Prediction Model that Accounts for Cooling Rate Effects Ñ Part 1: Model Development
    Details of a prediction model based on a neural network system of analysis are described. BY J. M. VITEK, S. A. DAVID, AND C. R. HINMAN
    Posted 1/03  |  Published 1/03

  • The Mechanism of Stress-Relief Cracking in a Ferritic Alloy Steel
    A novel stress-relaxation technique and extensive microstructural characterization of the carbide precipitation, elemental segregation, and fracture modes were used to investigate stress-relief cracking in a ferritic alloy steel. BY J. G. NAWROCKI, J. N. DUPONT, C. V. ROBINO, J. D. PUSKAR, AND A. R. MARDER
    Posted 2/03  |  Published 2/03

  • Improved Ferrite Number Prediction Model that Accounts for Cooling Rate Effects Ð Part 2: Model Results
    Results of a prediction model based on a neural network system of analysis are described. BY J. M. VITEK, S. A. DAVID, AND C. R. HINMAN
    Posted 2/03  |  Published 2/03

  • Influence of Reflected Arc Light on Vision Sensors for Automatic GTAW Systems
    A model was developed to predict arc noise for various configurations of sensors, base metals, and welding arcs. BY J.-Y. YU, J.-I. KIM, AND S.-J. NA
    Posted 2/03  |  Published 2/03


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