RESEARCH PAPERS

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1990 1991 1992 1993 1994 1995 1996 1997 1998 1999

• Heat-Affected Zone Liquation Cracking in Austenitic and Duplex Stainless Steels
  Although cracking was characteristically intergranular, liquid film-caused cracking varied considerably.   BY J. C Lippold, et al.
  Published Jan/1992
• Effect of Preweld and Postweld Heat Treatment on the Properties of GTA Welds in Ti-6Al-4V Sheet
  The effects of solution, aging and stress-relieving operations on weld properties are detailed.   BY G.Thomas, et al.
  Published Jan/1992
• Carbon Fiber Silver-Copper Brazing Filler Material Composites for Brazing Ceramics
  The key to high-strength ceramic brazements may be a composite filler material.   BY J. Cao
  and D. D. L. Chung
  Published Jan/1992
• Ceramic-to-Metal Joints Brazed with Palladium Alloys
  A new brazing alloy shows promise in withstanding the thermal stress of engine applications.   BY J. H. Selverian and S. Kang
  Published Jan/1992

• Microstructure and AEM of Self-Shielded Flux Cored Arc Steel Weldments
  Reheated zones in multipass welds, the nature of second phases, and the effects of nonmetallic inclusions are studied under the microscope.   BY M. Es-Souni, et al.
  Published Feb/1992
• Modeling Resistance Spot Weld Nugget Growth
  The relationship of weld nugget formation and squeeze cycle stress is detailed.   BY C. L. Tsai, et al.
  Published Feb/1992
• Implications of 3-D Numerical Simulations of Welding of Large Structures
  The effects of internal stresses on welded structures are examined.   BY S. B. Brown and H. Song
  Published Feb/1992

• The Effect of Columnar Microstructure on the Toughness of Carbon Steel Braze Joints
  Impact toughness of dissimilar steel brazements shows improvement.   BY H. Ohmura, et al..
  Published Mar/1992
• Vaporization Kinetics and Surface Temperature in a Mutually Coupled Spot Gas Tungsten Arc Weld and Weld Pool
  Study delves into vaporization's role in limiting weld pool surface temperature.   BY R. T. C Choo and J. Szekely
  Published Mar/1992
• Effect of Deoxidation Sequence on Carbon Manganese Steel Weld Metal Microstructures
  Controlling the deoxidation sequence can translate into welds with improved strength and toughness.   BY F-C Liao and S.Liu
  Published Mar/1992
• Mechanical Properties of Flux Cored Iron-Manganese-Aluminum Weld Metal
  The feasibility of using Fe-Mn-AI consumables for joining austenitic stainless steels is investigated.   BY K. Makhamreh and D. Aidun
  Published Mar/1992

• Microstructure and Properties of a Welded Al-Cu-Li Alloy
  Weldment performance at ambient and cryogenic temperatures is investigated.   BY L. S. Kramer and J. R. Pickens
  Published Apr/1992
• Gas Contamination Effects in Variable Polarity Plasma Arc Welded Aluminum
  Keeping an eye on gas purity might make the difference between good welds and bad welds.   BY M. R. Torres, et al.
  Published Apr/1992
• Low-Stress Sliding Abrasion Resistance of Cobalt-Based Surfacing Deposits Welded with Different Processes
  Various welding processes are evaluated for their effectiveness in depositing
  the most wear-resistant hardfacing.   BY J. C. Cassina and I. G. Machado
  Published Apr/1992
• Marangoni Interaction of a Liquid Droplet Falling onto a Liquid Pool
  A simulated weld pool offers a chance to observe inclusion distribution under various flow patterns.   BY R. T. C. Choo, et al.
  Published Apr/1992

• Friction Welding of a Rapidly Solidified Al-Fe-V-Si Alloy
  Friction welding proves an effective process for joining a new aluminum alloy.   BY H. H. Koo
  and W. A. Baeslack III
  Published May/1992
• WRC-1992 Constitution Diagram for Stainless Steel Weld Metals: A Modification of the WRC-1988 Diagram
  Refined constitution diagram improves accuracy of ferrite prediction over a wide range of alloy. BY D. J. Kotecki T. A. Siewert
  Published May/1992
• Effect of Weld Pool Deformation on Weld Penetration in Stationary Gas Tungsten Arc Welding
  The interrelationships of four distinct driving forces are factored into a model of weld pool
  convection.   BY S. -D. Kim and S. -J. Na
  Published May/1992
• Effect of Welding Variables on Cracking in Cobalt-Based SMA Hardfacing Deposits
  Study pinpoints what to do when crack-free hardfacing deposits are needed.   BY R. V. Sharpies and T. G. Gooch
  Published May/1992

• Laser Beam Welding of HY80 and HY100 Steels Using Hot Welding Wire Addition
  High strength steel, good impact properties and the laser process prove to be a viable combination.   BY R. H. Phillips and E. A. Metzbower
  Published Jun/1992
• Effects of Weld Discontinuities on Fatigue Strength of Laser Beam Welds
  An analytic model is developed to predict the relationship between fatigue life and the presence of discontinuities.   BY P. -C. Wang S. Davidson
  Published Jun/1992
• A Laser Welding Nozzle for Beam Delivery Optics Protection
  A specially designed window directs air flow around the laser optics to keep them clean.   BY D. R. Sutliff, et al.
  Published Jun/1992
• Parameter Optimization and Properties of Friction Welded Quenched and Tempered Steel
  Parameter recommendations are made for getting good friction welds in A517 steel.   BY G. P. Rajamani, et al.
  Published Jun/1992

• Weldability and Hot Ductility of Chromium-Modified Ni₃AI Alloys
  This study offers insight into ways to make hot cracking less problematic.
  BY M. C. Maguire, et al.
  Published Jul/1992
• The Melting Rate of a Single Phase Welding Wire
  The relationship of electrode extension, current density and melting rate is simplified into a single equation.
  BY R. L. Bish
  Published Jul/1992
• An Atom-Probe Study of Retained Austenite in Ferritic Weld Metal
  By following the migration of carbon and boron on an atomic scale, the mechanism of acicular ferrite transformation becomes clearer.
  BY M. N. Chandrasekhariah, et al.
  Published Jul/1992
• Development of Weld Metal with High Toughness and Low Hardenability
  Key factors for reducing hardenability and increasing toughness in a submerged arc weld are exposed.
  BY K. Shinada, et al.
  Published Jul/1992
• Effect of Oxygen Content on Charpy V-Notch Toughness in 3%Ni Steel SMA Weld Metal
  The controlled addition of magnesium to the electrode is shown to reduce oxygen and thereby
  improve toughness.  BY E. S. Surian, et al.
  Published Jul/1992

• Fatigue Life Prediction of Cruciform Joints Failing at the Weld Toe
  Two-stage model makes prediction of fatigue life more accurate.  BY M. Skorupa
  Published Aug/1992
• A Study on Arc Characteristics and Its Application to Height Control in Plasma Arc Cutting
  Torch height is maintained by using the arc as a sensor.  BY T.-J. Lho, et al.
  Published Aug/1992
• Effect of Bismuth on Weld Joint Penetration in Austenitic Stainless Steel
  Bismuth improves machineability, but is it at the expense of good weldability?
  BY Y. Takeuchi, et al.
  Published Aug/1992
• Crack Initiation and Propagation in a Pearlitic Nodular Iron Joint Welded with a Nickel-Iron Electrode
  Finding the causes of cracking can lead to improved filler metals.  BY X.-Y. Zhang, et al.
  Published Aug/1992
• Gas Tungsten Arc Welding of a Powder Metallurgy Aluminum Alloy
  Porosity and intermetallic phase brittleness prove too much for the integrity of fusion welds.
  BY G. E. Metzger
  Published Aug/1992

• Determination of Residual Stresses in Thick-Section Weldments
  Reduce costs using a model on stress distribution in a thick multipass weld.   BY Y. Shim, et al.
  Published Sep/1992
• Role of Thermophysical Properties in Weld Pool Modeling
  The importance of heat transfer and fluid flow to modeling accuracy is established.   BY K. Mundra, et al.
  Published Sep/1992
• Investigation of Arc Force Effects in Subsurface GTA Welding
  Ways to achieve arc stability with "buried arc" GTA welding are examined.   BY Y. Adonyi, et al.
  Published Sep/1992
• High Heat Input Welding of Offshore Structures — Procedures and Weld Properties
  The mutual compatibility of high-heat input welding and low-temperature toughness is shown.   BY P. Burgardt and C. R. Heiple
  Published Sep/1992
• Weld Penetration Sensitivity to Welding Variables When Near Full Joint Penetration
  Slight variations in welding conditions mean wide variations in joint penetration.   BY G. Rorvik, et al.
  Published Sep/1992
• Effect of Manganese and Type of Current on the Properties and Microstructure of All-Weld-Metal Deposited from E7016-1 Electrodes
  Good weld metal toughness depends a lot on electrode polarity and Mn levels.   BY E. Surian
  and T. Boniszewski
  Published Sep/1992

• Diffusion Brazing in the Nickel-Boron System
  A model is developed to predict the kinetics during four stages of diffusion brazing.  BY J. E. Ramirez and S.Liu
  Published Oct/1992
• The Influence of Oxygen on Nitrogen Absorption during Arc Melting of Iron
  Oxygen appears to have a strong influence on the degree of nitrogen saturation in the weld pool.   BY J. W. Hooijmans and G. den Ouden
  Published Oct/1992
• Observation of Metal Transfer during Gas Metal Arc Welding
  Investigation reveals effect of electrode extension and type of shielding gas on shape and speed of molten metal transfer.   BY S. Rhee and E. Kannatey-Asibu, Jr.
  Published Oct/1992

• Hydrogen Cracking in Duplex Stainless Steel Weld Metal
  Nitrogen might be the key to controlling hydrogen cracking.   BY K. Shinozaki, et al.
  Published Nov/1992
• Arc Welding Penetration Control Using Quantitative Feedback Theory
  Visible and near-infrared light act as sensors for controlling joint penetration.   BY A. E. Bentley and S. J. Marburger
  Published Nov/1992
• Effect of Composition and Energy Input on Structure and Properties of High-Strength Weld Metals
  Weldability of HY80 and HSLA80 is analyzed in detail.   BY J. A. Gianetto, et al.
  Published Nov/1992
• Examination of Type 308 and 308 CRE Stainless Steels after Interrupted Creep Testing
  A modified Type 308 stainless steel displays improved resistance to creep rupture.   BY J. M. Vitek, et al.
  Published Nov/1992
• Toughness Requirements for Welded Structures in the Arctic
  Toughness tests are evaluated to determine effectiveness of predicting steel performance in arctic conditions.   BY B. A. Graville and W. R. Tyson
  Published Nov/1992

• Reduction of Residual Stresses in Weldments with Explosive Treatments
  Explosive stress relief treatments can extend the service life of welded structures.   BY C. G. Schmidt and D. A. Shockey
  Published Dec/1992
• The Effect of Titanium in SMA C-Mn Steel Multipass Deposits
  Varying the Ti content slightly results in dramatic microstructural changes.   BY G. M. Evans
  Published Dec/1992
• Liquid Metal Embrittlement of Austenitic Stainless Steel When Welded to Galvanized Steel
  Scrupulous joint preparation proves critical to producing sound welds.   BY R. M. Bruscato
  Published Dec/1992
• The Interface below Stainless Steel and Nickel-Alloy Claddings
  An understanding of hard zones formed at the interface is needed to develop the proper welding procedure.   BY M. F. Gittos and T. G. Gooch
  Published Dec/1992
• Technique for Simultaneous Real-Time Measurements of Weld Pool Surface Geometry and Arc Force
  Radiography is used as a mechanism for adaptive control.   BY A. C. Guu and S. I. Rokhlin
  Published Dec/1992
• Joining of Polymers to Metal
  Electromagnetic induction and ultrasonic bonding are used to join aluminum to polymers.   BY G. Ramarathnam, et al.
  Published Dec/1992