Moscow. February 11. INTERFAX - Specialists of the Obukhov plant have developed a foundry alloy, which has been named "Nevsky" and has already been successfully used in production, the press service of the Almaz-Antey concern of East Kazakhstan Region, which includes the enterprise, reports.
"The new iron-nickel alloy has a lower temperature coefficient of linear expansion in the operating temperature range of 20-180 °C in combination with good casting properties and high crack resistance," the report said on Friday.
According to the press service, such characteristics were obtained thanks to the improved chemical composition of the alloy and the optimal mode of heat treatment, which avoids the stage of stress accumulation in the structure and provides greater stabilization of the dimensions of the parts.
"An integrated approach to alloying the alloy made it possible to achieve a high level of properties and quality of the material in comparison with currently existing analogues without the use of expensive rare earth elements in its composition," the press release says.
It is reported that the use of a new inverse alloy makes it possible to produce castings with complex spatial geometry, successfully use it in precision instrumentation and other industries where strict requirements are imposed on the geometric stability of products.
According to Mikhail Podvyaznikov, Deputy General Director of the concern - director of the North-West Regional Center, to whom the press service refers, the name of the new invar alloy was invented by the entire staff of the enterprise. According to the results of the competition held in November last year, for which 28 applications were submitted, the alloy was named "Nevsky".