SHORT-TERM HIGH-TEMPERATURE TENSILE TESTS AND PREDICTION OF LONG-TERM STRENGTH OF WELDED JOINTS OF DISSIMILAR STEELS T92/HR3C

摘要

The microstructures, surfaces and types of fracture of welded joints of dissimilar steels T92/HR3C are studied after short-term tests at 500 - 650°C. A pioneer equation is obtained for describing the long-term strength of welded joints with the help of data of short-term tensile tests. The values of the long-term strength computed by the equation agree well with experimental data.