The effect of heat treatment on the properties of the new iron-base alloy

Authors

  • Олег Викторович Акимов National technical University «Kharkiv Polytechnic Institute» Frunze, 21, Kharkіv, Ukraine, 61002, Ukraine https://orcid.org/0000-0001-7583-9976
  • Сундус Мохаммед Нури National technical University «Kharkiv Polytechnic Institute» Frunze, 21, Kharkіv, Ukraine, 61002, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2015.56370

Keywords:

austenitic steel, alloy with a shape memory effect, strength, ductility, resistance to scaling, corrosion resistance

Abstract

The aim of the research was to develop a new austenitic dispersion-hardened corrosion-proof and scaling-resistant iron-base alloy. We have selected and analyzed in detail the chemical composition of the desired alloy, made calculation of the charge and held melting in an induction furnace. We have devised a technology of thermal treatment of the resulting alloy and proved that the best mode is hardening at a temperature of 1180 °C and aging at a temperature of 1000 °C that lasts for 1 hour and is followed by cooling in the air. The more intense dispersion hardening of the alloy results in higher values of its strength and ductility. The study of the scaling resistance shows that it is appropriate to use the alloy at temperatures raised up to 750 °C. The experimental study of corrosion resistance of the alloy shows that the alloy is corrosion-proof and not subject to changes in mass when exposed to a 10% sulfuric acid solution.

Author Biographies

Олег Викторович Акимов, National technical University «Kharkiv Polytechnic Institute» Frunze, 21, Kharkіv, Ukraine, 61002

Doctor of technical Sciences, Professor, head of the Department

Department of Foundry production

Сундус Мохаммед Нури, National technical University «Kharkiv Polytechnic Institute» Frunze, 21, Kharkіv, Ukraine, 61002

postgraduate student

Department of Foundry production

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Published

2015-12-23

How to Cite

Акимов, О. В., & Нури, С. М. (2015). The effect of heat treatment on the properties of the new iron-base alloy. Eastern-European Journal of Enterprise Technologies, 6(11(78), 35–40. https://doi.org/10.15587/1729-4061.2015.56370

Issue

Vol. 6 No. 11(78) (2015): Materials Science

Section

Materials Science

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Copyright (c) 2015 Олег Викторович Акимов, Сундус Мохаммед Нури

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