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  • Weldability and Corrosion Studies of AISI 316L Electropolished Tubing (.pdf)
    the crevices (and potential for crevice corrosion) common with mechanical couplings. Unacceptable weld characteristics include bead meander, oxidation, and slag formation. There are also cosmetic geometric issues, such as weld bead width and height.
  • Laser Cutting and Welding of Copper (Cu) and Copper Alloys
    working with copper due to the fact that the molten weld bead becomes very highly reflective resulting in reflected power being transferred back into the laser. A series of 20mm long rectangular cuts were made at various laser parameters and a range of cut speeds. Due to fit up issues
  • Examining the corrosion resistance of chromium-passivated stainless-steel tubes
    , such as weld bead and heat-affected zones (HAZs). This results in metallic particle generation at susceptible points. Thus, corrosion-induced particles generated at the wetted surfaces of the electropolished tubes affect halogen's point-of-use purity. Recently, chromium-rich oxide passivation (CrP
  • Case Study: Multiple Analysis of Welded Steel Tube
    Three types of welded steel tubing samples were presented for evaluation of metallurgical conditions including: 1) Cold weld. 2) Galfan coating integrity. 3) Holes. 4) Differences in I.D. bead height. Three samples of .373" OD Galfan coated tube with a .043" nominal wall thickness were tested

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