INTERPRETATION OF RADIOGRAPHIC IMAGES OF NICKEL FOIL REINFORCED RESISTANCE SPOT WELDS IN TYPE 301 STAINLESS STEEL
Abstract
Several samples of nickel reinforced resistance spot welds in Type 301 stainless steel sheet were radiographed using a beryllium window tube. A few spot welds which were prepared for microscopic examination were chosen on the basis of dark internal X-ray images appearing within the weld image as well as some dark line images on the periphery of the spot weld. Microscopic examination of the spot welds indicate that the dark internal X-ray images and the dark peripheral line images represent the outline of the type of nickel enriched 301 weld nugget formed. The ability of radiography to outline the nickel enriched weld nugget and to record the peripheral dark line image is probably a result of the difference in the radiopacity of the steel, the nickel foil, and the nickel enriched weld nugget.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 27, 1963
- Accession Number
- AD0405196
Entities
People
- A. F. Hooper
- C. J. Kropp
Organizations
- General Dynamics