Abrasion is a process that occurs on the surface of the workpiece, so it is important to strengthen the surface of the workpiece. Steel surface strengthening technology has a long history, for example, carburizing technology can be traced back to at least two dry years ago in China's Han Dynasty, and more than a thousand years ago in Chinese history books have been documented about carbonitriding technology. In recent decades, a variety of surface strengthening technology and equipment have developed rapidly, and taking the necessary surface strengthening and surface modification measures can not only save a lot of raw materials, but also endow the surface layer of the workpiece with a variety of special structural structures and properties that are difficult to obtain as an integral material, so as to obtain the best wear resistance and huge economic benefits. Nowadays, surface strengthening technology has become an important development direction for the research and application of wear-resistant steels (including wear-resistant materials).
