Technical and economic aspects of technological conversion of Ni-based superalloys working in extreme conditions

The essence of the conversion process is the introduction of innovative in terms of materials and technology of cast parts, as components of manufactured machines and equipment in place of the traditional elements forged, welded, mechanically assembled parts. It is well known that the technology of casting, in contrast to other metal forming, mentioned above techniques will make it possible to give to metal even the most complicated shape - which gives the possibility to make integrated castings - essential elements of modern machines and equipment. Commonly used metal elements made by forging techniques have to be integrated by the use of welding techniques, or other metal joining techniques. This means that in almost every case a significant increase in weight of the entire item, low resistance to work in high temperature conditions, lower abrasion resistance. With the help to solve that case there are foundry technologies that are at the disposal of durable, resistant to high temperatures and thermal fatigue different types of metal material. At the same time using modern molding techniques it is possible to create an integrated casting component, which, as an element of the device is able to replace complex combined different techniques other metal parts. This will ensure the optimization of the performance of the final device. It is natural and obvious that not every piece of metal construction machine or equipment will be possible to replace by an integrated casting part. Therefore, the performing of conversion process should be preceded by a detailed study, research and application-oriented process towards the technical and economic viability of such a conversion. The current level of technology allows the realization of the conversion of cast metal components essential for construction machinery used in agriculture, construction, power generation and exploitation of natural resources.

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