ACOUSTIC EMISSION METHOD AT EVALUATION OF THE STATE OF WELDS AND THEIR SERVICE PROPERTIES. PART 1. EFFECT OF WELDED JOINT TYPE ON ACOUSTIC EMISSION

摘要

The majority of existing structures have welded joints. It is of considerable interest to determine the differences in acoustic emission for various types of welded joints and change of the properties of materials in operating structures, which have welded elements, after long-term service, taking into account the time and probable violation of service conditions. The data of testing samples from such materials demonstrate the high sensitivity of acoustic emission method to welded joint type, and to changes of weld service properties.