WJ Supplements - 2008

RESEARCH PAPERS

Get Adobe Reader

Research Papers posted are available in PDF format ONLY. You will need Adobe Acrobat Reader to view the PDF version of the document.

1970s   1980s   1990s   2000s   2010s

2000   2001   2002   2003   2004   2005   2006   2007   2008   2009

  • A New Approach to Quantitative Evaluation of a Design for Brazed Structures
    A system of design criteria with assigned score values was developed to help select the most effective brazement design.
    BY A. E. Shapiro and D. P. Sekulic
    Published January 2008
  • Consumable Double-Electrode GMAW - Part 1: The Process
    To evaluate a newly developed consumable double electrode gas metal arc welding process, its fundamental characteristics were investigated.
    BY K. H. Li and Y. M. Zhang
    Published January 2008
  • Effects of Temporal Pulse Shaping on Cracking Susceptibility of 6061-T6 Aluminum Nd:YAG Laser Welds
    A better way to seal electronic and optoelectronic components in hermetic enclosures was investigated.
    BY J. Zhang et al.
    Published January 2008

  • The Mechanism of Ductility Dip Cracking in Nickel-Chromium Alloys
    Test results showed that ductility dip cracking in these alloys are caused by thermal and solidification stresses induced during welding and a local grain boundary stress generated during precipitation of partially coherent (Cr, Fe)23C6 carbides.
    BY G. A. Young et al.
    Published February 2008
  • Consumable Double-Electrode GMAW Part II: Monitoring, Modeling, and Control
    Using the developed interval control algorithm, closed-loop control experiments were conducted to verify the effectiveness of the proposed control system for the consumable doubleelectrode GMAW process.
    BY K. H. Li and Y. M. Zhang
    Published February 2008 Observation of Arc Start Instability and Spatter Generation in GMAW
    Spatter generation due to arc start instability was monitored using the voltage and wire feeding rate and an electrode temperature model was developed.
    BY U. Ersoy et al.
    Published February 2008
  • High-Strength Steel Welding with Consumable Double-Electrode Gas Metal Arc Welding
    The heat-affected zone characteristics in welds produced with double-electrode GMAW were examined and compared to conventional GMAW.
    BY K. H. Li et al.
    Published March 2008
  • Characterization of High-Strength Steel Weld Metals: Chemical Composition, Microstructure, and Nonmetallic Inclusions
    To get a better understanding of chemistry- and microstructure-property relationships in high-strength steel weld metals, their general compositional and microstructural characteristics were studied.
    BY J. E. Ramirez
    Published March 2008
  • Characterization Procedure for the Analysis of Arc Welding Fume
    A procedure was developed to characterize welding fume generated from arc welding processes that included measurement of fume generation rate, fume particle size, and mass distribution.
    BY J. W. Sowards et al.
    Published March 2008

  • Measurement and Analysis of Three-Dimensional Specular Gas Tungsten Arc Weld Pool Surface
    A method of rebuilding a 3-D weld pool surface off-line was devised and verified.
    BY H. S. Song and Y. M. Zhang
    Published April 2008
  • Predicting Resistance Spot Weld Failure Modes in Shear Tension Tests of Advanced High-Strength Automotive Steels
    Experiments indicate that the mode of failure should not be the only judge of spot weld quality in advanced high-strength steels.
    BY D. J. Radakovic and M. Tumuluru
    Published April 2008
  • Characterization of Welding Fume from SMAW Electrodes - Part I
    Fume particles and generation rates were characterized as a function of size for three different covered electrodes.
    BY J. W. Sowards et al.
    Published April 2008

  • Characterization of Titanium/Steel Joints Brazed in Vacuum
    The effects of brazing temperature on the joint strength and microstructure of furnace brazed titanium/steel joints using copper-based filler metal were examined.
    BY A. El Refaey and W. Tillmann
    Published May 2008
  • The Welding Characteristics of a New Ni-Cr-Mo Alloy Designed to Resist Wet Process Phosphoric Acid
    The Varestraint weldability test was used to assess the susceptibility of a new, high-chromium nickel alloy to solidification cracking.
    BY G. M. Chirieleison et al.
    Published May 2008
  • Metal Transfer during GMAW with Thin Electrodes and Ar-CO2 Shielding Gas Mixtures
    Metal transfer modes in gas metal arc welding using DCEP in a variety of Ar-CO2 shielding gas mixtures and thin electrodes were investigated.
    BY E. J. Soderstrom and P. F. Mendez
    Published May 2008

  • Effect of GMAW Process and Material Conditions on DP 780 and TRIP 780 Welds
    The effects of material prestrain, cooling rate conditions, filler metal selection, dilution, and postbaking on the microstructure and mechanical properties of GMA welds on high-strength steels are characterized.
    BY N. Kapustka et al.
    Published June 2008
  • Adams Lecture: A New Path Forward for Understanding Microstructural Evolution during Welding
    Real-time X-ray diffraction methods using synchrotron radiation were developed for the direct observation of phase transformations during welding.
    BY J. W. Elmer
    Published June 2008

  • Liquation of Mg Alloys in Friction Stir Spot Welding
    The properties and characteristics of magnesium alloys joined with solid-state welding were investigated.
    BY Y. K. Yang et al.
    Published July 2008
  • Experimental and Numerical Analysis of the Friction Welding Process for the 4340 Steel and Mild Steel Combinations
    A model was developed to predict stress, strain, and geometry of welds.
    BY S. A. A. Akbari Mousavi and A. Rahbar Kelishami
    Published July 2008
  • A Friction-Based Finite Element Analysis of Ultrasonic Consolidation
    Distributions of temperature and plastic deformation from friction stress were studied.
    BY C. Zhang and L. Li
    Published July 2008

  • Development of High-Temperature Air Braze Filler Metals for Use in Two-Step Joining and Sealing Processes
    Palladium as an addition to filler metals for air brazing hightemperature devices was investigated for its melt elevator characteristics.
    BY J. S. Hardy and K. S. Weil
    Published August 2008
  • Liquation Tendency and Liquid-Film Formation in Friction Stir Spot Welding
    A simple binary alloy with an easy-to-understand microstructure was studied for its liquation properties when friction stir welded.
    BY Y. K. Yang et al.
    Published August 2008
  • Modeling and Analysis of the Arc Light Spectrum in GMAW
    The spectrum of radiation from the welding arc was analyzed and mathematical models were devised for both single and multiple wavelengths.
    BY M. S. Weglowski
    Published August 2008

  • Automatic Weld Planning by Finite Element Simulation and Iterative Learning
    A system was developed that automatically generates optimum weld control variables.
    BY P. V. Jeberg et al.
    Published September 2008
  • Analysis of Metal Transfer and Correlated Influences in Dual-Bypass GMAW of Aluminum
    A modified gas metal arc process uses two tungsten electrodes to change forces affecting droplet transfer.
    BY Y. Shi et al.
    Published September 2008
  • Defining a Critical Weld Dilution to Avoid Solidification Cracking in Aluminum
    The relationship between filler metal dilution and local strain rates on cracking was investigated.
    BY N. Coniglio et al.
    Published September 2008

  • A GleebleĀ®-based Method for Ranking the Strain-Age Cracking Susceptibility of Ni-Based Superalloys
    Strain-age cracking susceptibility of six, gamma-prime strengthened Ni-based superalloys were evaluated using a Gleeble-based test method.
    BY D. A. Metzler
    Published October 2008
  • Ductility-Dip Cracking Susceptibility of Nickel-Based Weld Metals Part 1: Strain-to-Fracture Testing
    Ductility-dip cracking susceptibility of high-chromium, Ni-based filler metals frequently used in nuclear power plant applications were evaluated using strain-to-fracture testing.
    BY N. E. Nissley and J. C. Lippold
    Published October 2008
  • Robotic Stud Welding Process Optimization with Designed Experiment
    A short-cycle stud welding process using a cool, slow arc energy delivery method produced strong welds and process stability.
    BY C. Hsu et al.
    Published October 2008

  • Estimating Welding Preheat Requirements for Unknown Grades of Carbon and Low-Alloy Steels
    Determining maximum surface hardness of unknown grades of steel proved helpful in developing welding procedures.
    BY R. W. Hinton and R. K. Wiswesser
    Published November 2008
  • Effect of Martensite Start and Finish Temperature on Residual Stress Development in Structural Steel Welds
    Several welding wires were developed to aid in the investigation of the start and stop temperatures for martensite transformation in weld metal.
    BY M. C. Payares-Asprino et al.
    Published November 2008

  • Evaluation of Dissimilar Welds between Ferritic Stainless Steel Modified 12% Cr and Carbon Steel S355
    The weldability and weld properties of modified X2CrNil2 stainless steel were studied.
    BY E. Taban et al.
    Published December 2008
  • Influence of Induction and Furnace Postweld Heat Treatment on Corrosion Properties of SAF 2205 (UNS31803)
    Corrosion resistance of duplex stainless steels that undergo postweld heat treatments are very sensitive to time and temperature parameters.
    BY P. Ferro et al.
    Published December 2008