Abstract
The object of research is the technology for producing iron-based shape memory alloy. One of the most problematic moments in this process is the need to increase the degree of shape recovery while maintaining high mechanical characteristics. It is found that the developed iron-based shape memory alloy has sufficient mechanical properties. The results show that the surface oxidation isn’t observed for heating of the samples in temperature range 600-1000 oC. During the experiment it is found that alloy is corrosion resistant and doesn’t change a mass in 10 % solution of sulfuric acid. It is found form recovery degree of the proposed alloy is 73-95 % while maintaining such important properties as strength, viscosity, corrosion and oxidation resistance.
Highlights
One of the special properties of the alloys is a shape memory effect, which is widely used in various technical fields [1,2,3]
The main focus to improve the development of a new iron-based shape memory alloy is a selection of the burden, smelting and heat treatment
Weaknesses of this research are related to the fact that the shape memory effect of developed alloy is implemented on smaller samples, which greatly reduces the possibility of further use of this alloy
Summary
One of the special properties of the alloys is a shape memory effect, which is widely used in various technical fields (special engineering, instrumentation, aerospace equipment, household appliances, etc.) [1,2,3]. At the same time the most widely used alloys are Ti–Ni-based alloys that are used primarily in the medical field, thanks to a unique combination of performance properties [4,5,6]. This alloy is quite expensive and its use in machinery is not advisable. In this regard, researches for finding and developing new shape memory alloys are relevant and ironbased alloys have the greatest interest for metallurgy and mechanical engineering [7,8,9].
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