INCREASE IN THE LEVEL OF MECHANICAL AND OTHER SERVICE PROPERTIES OF AUTOMOBILE SHEET STEELS BY CONTROLLING PRECIPITATION OF NONMETALLIC EXCESS PHASES

It is shown that creation of conditions for forming nonmetallic excess phase particles of a specific type, amount and dimensions during metal processing is an important tool making it possible to provide a breakthrough in increasing the level and stability of mechanical, physicochemical properties and other service characteristics for steels of various types, including ultralow-carbon stamping and high-strength, thermally strengthened, low-carbon, and microalloyed automobile steels. A method is proposed for controlling precipitation of non-metallic excess phases in order to create energy- and resource-saving technology for producing a new generation of automobile sheet steels of various types.