INFLUENCE OF COMPLEX ALLOYING OF HIGH-MANGANESE STEEL NITRIDED WITH TI-CA ADDITION ALLOY ON ITS ABRASIVE WEAR RESISTANCE CHARACTERISTICS
The present paper describes the investigation results of abrasive wear resistance characteristics of a cast high-manganese steel as a function of the amount of introduced nitrided Ti-Ca-alloy and as a function of the solidification rate of steel in the casting mould. The first part of the paper reviews the results of domestic scientists investigating the issue of improving the properties of high-manganese steel by means of alloying and modifying it with different chemical elements, such as Ti and Сa. The second part of the paper considers the methods of the investigation. After that, the authors describe the influence of microalloying with complex nitrided Ti-Ca-alloy on the value of the wear resistance. The data are given about the influence of the cooling rate of the alloy in the casting mould on the wear resistance characteristic. The research group also considered the influence of the standard heat treatment mode applied at foundry shops on these characteristics. The final part of the paper offers the conclusions and practical recommendations for application of this alloy in the production process to improve the service durability characteristics.