Accession Number : ADA258160


Title :   Threshold Corrosion Fatigue of Welded Shipbuilding Steels.


Descriptive Note : Final rept.,


Corporate Author : MNSW INC SAN MARCOS CA


Personal Author(s) : Reynolds, G H ; Todd, J A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258160.pdf


Report Date : Jan 1992


Pagination or Media Count : 224


Abstract : This report provides an overview of the development and verification of a test methodology for near-threshold corrosion fatigue of welded high strength, low alloy (HSLA) shipbuilding steels. The method permits the direct evaluation of the corrosion fatigue resistance of weld metal, heat-affected zone (HAZ), and base metal regions. Experimental powder-cored electrode filler metals were prepared to evaluate the effect of weld metal carbon and copper contents on weldment mechanical properties in the as-welded condition. Welded joint geometries used in this study were developed in the first phase of this project. This report incorporates findings from phases one and two. The study concludes with recommendations concerning the further development of the partial hydrogen embrittlement method to accelerate the collection of near threshold corrosion fatigue data.


Descriptors :   *CORROSION , *ALLOYS , *STEEL , *WELDED JOINTS , *SHIPBUILDING , *FATIGUE , TEST AND EVALUATION , METALS , VERIFICATION , RESISTANCE , PHASE , WELD METAL , BASE METAL , FILLERS , HEAT , HYDROGEN EMBRITTLEMENT , ELECTRODES , COPPER , HIGH STRENGTH , WELDMENTS , HYDROGEN , REGIONS , CARBON , EMBRITTLEMENT , POWDERS , METHODOLOGY , MECHANICAL PROPERTIES


Subject Categories : Metallurgy and Metallography
      Couplers, Fasteners, and Joints
      Marine Engineering
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE