Abstract
This work aims to establish a scientific and engineering background in the production of cast multicomponent alloys and metalmartix composite (MMCs) via Self-Propagating High Temperature Synthesis (SHS, combustion synthesis) which is a novel process technique regarding fast and low-cost production ability. We carried out the search for reactive systems and process parameters that would ensure preparation of cast multicomponent materials in a single process. The principles and methods of the SHS thermite-type reaction processes have been investigated under high-gravity values applying loads up to 1000 g with special centrifuge set-up. In this way we expected to improve the yield of target product, remove gaseous byproducts, diminish the grain size in the product, and make product composition more uniform. The obtained results can be expected to make a theoretical background for industrial-scale manufacturing of heat-resistant intermetallic alloys, master alloys, catalysts, MMCs etc.
Highlights
Intermetallic alloys (IAs) and metal-martix composites (MMCs) based on them are considered as most promising candidates in designing modern wear-resistant and high-strength materials
The materials based on the intermetallides have attracted great interests over the years for their use in wide range of applications starting from steel modifiers in extractive metallurgy to the advanced purposes such as special materials which are resistant to specific corrosion media and/or elevated operating temperatures even in high load, intense friction, and abrasive conditions
The main goal of the item our research to study the possibility of synthesizing multicomponent 46Ni-10Co3Mn-Al and 56Ni-3Mn-Al, wt% metallic materials based on using the SHS technique and subsequently processing them with the aim of using them as catalysts in the process of complete CO and hydrocarbons oxidation
Summary
Intermetallic alloys (IAs) and metal-martix composites (MMCs) based on them are considered as most promising candidates in designing modern wear-resistant and high-strength materials. In the case the best service parameters can be realized by uniform, regular, spatially ordered structure with controllable size/ shape of structural units [2,3,4,5,6] and a sufficiently high volume fraction of hard component. Another promising applicable field for intermetallic based materials is manufacturing multi-purpose catalysts [7,8]
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