Acoustic Evaluation of the Stress-Strained State of Welded Carbon Steel Joints after Different Modes of Heat Input

Abstract

The following problems are being solved within the framework of the “Long-Term Development Program of the Russian Coal Industry for the Period of up to 2030”: the modernization and renewal of coal production facilities and achieving the world standards of industrial security. The article is dedicated to the problems of evaluating the possibility of determining the stress-stained state (SSS) of the new elements of mining equipment in heat affected zones by acoustic and electron-microscope investigation.