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WRC BUL 261

1980 Edition, September 1, 1980

Complete Document

EFFECTS OF POROSITY ON THE FACTURE TOUGHNESS OF 5083, 5456, AND 6061 ALUMINUM ALLOY WELDMENTS



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Product Details:

  • Revision: 1980 Edition, September 1, 1980
  • Published Date: September 1980
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Welding Research Council (WRC)
  • Page Count: 14
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Dynamic Tear and J-integral specimens having four levels of porosity were prepared from weldable aluminum alloy welds (5083/5183,6061/5356, and 5455/5556). All specimens were fatigue precracked before testing. The amount of porosity was measured directly on the fracture surfaces using quantative metallographic methods and was divided into macro- and micro-porosity (pores equal to or larger than and smaller than 0.01-in., respectively). Radiography indicates only the macro-porosity as discrete pores. In general, there was 5 to 10 times more micro-porosity than macro-porosity found on the fracture surfaces. Total porosity was the sum of the macro- and the micro-porosity.