The aim of the work is a quantitative approximate assessment of the contribution of various hardening mechanisms for carbon and low alloy steels according to their chemical composition and parameters of a thin metallographic structure. | Quantitative assessment of the effectiveness of hardening mechanisms for carbon and low-alloy steels with different structural states International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March 2019 pp. 1606 1614 Article ID IJMET_10_03_161 Available online at http ijmet JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed QUANTITATIVE ASSESSMENT OF THE EFFECTIVENESS OF HARDENING MECHANISMS FOR CARBON AND LOW- ALLOY STEELS WITH DIFFERENT STRUCTURAL STATES Kanaev quot Kazakh Agro-Technical University named after quot Kazakhstan Astana Topolyansky LLC quot Plasmacentre quot Russian Federation Saint Petersburg Biizhanov . quot Kazakh Agro-Technical University named after quot Kazakhstan Astana ABSTRACT The aim of the work is a quantitative approximate assessment of the contribution of various hardening mechanisms for carbon and low alloy steels according to their chemical composition and parameters of a thin metallographic structure. It is generally accepted that the work is of scientific and practical interest since as is known there is currently no theory that satisfactorily describes hardening mechanisms especially for new promising hardening methods combined hardening methods combined heat treatment methods plasma laser processing etc. . There are only approximations that describe the existing hardening mechanisms which do not provide a rigorous quantitative assessment of the yield strength of steels with different structural states. In this paper by analyzing the literature data and our own experimental studies on chemical composition and structure parameters the approximate contribution of various hardening mechanisms to the yield strength of carbon wheel and low-alloy steels was quantified. The assessment is not strict based on a number of assumptions. It was established that for hot-rolled steel St5ps 1
