Optimization of the composition of cast iron for cast parts operating under abrasive friction, according to the criterion of maximum wear resistance
Abstract
The object of research: Titanium-alloyed hypoeutectic iron for mixer blades operating under abrasive friction conditions.
Investigated problem: selection of the optimal titanium content in the alloy according to the criterion of the maximum wear resistance coefficient.
The main scientific results: the content of titanium in cast iron was determined, which provides the maximum wear resistance coefficient with various compositions of the base alloy. It has been established that with the same titanium content, the highest value of the wear resistance coefficient depends on the carbon content and the position of the eutectic point on the Fe-C state diagram. In the studied range, the highest values of the wear resistance coefficient correspond to the average range of variation of these factors. This allows to say that the effect of carbon content and the position of the eutectic point doubly affect wear resistance at the same titanium content, and there is a range of titanium content in which the effect of these factors on the wear resistance value becomes the same.
The area of practical use of the results of the study: the results obtained can be used by designers of industrial enterprises choosing materials for the manufacture of machine parts subject to intense friction due to operating conditions. The wear caused by this friction leads to the failure of the blades, so the designer's task is to choose the one that maximizes the durability of the blades.
Innovative technological product: wear-resistant hypoeutectic cast iron alloyed with titanium for cast parts operating in conditions of intense abrasive friction
The scope of the technological innovative product: mixing plants of various types, mainly used in road construction, construction and agriculture.
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References
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