Influence of Heat Treatment Technology on the Structure and Properties of Thick Sheet Steel ASTMS14 Degree F

  • Stela CONSTANTINESCU "Dunarea de Jos" University of Galati
Keywords: annealing, tempering, structure, properties, martensite

Abstract

In this paper, based on the researches carried out a heat treatment technology can be determined which further lead to an optimum set of mechanical properties according to the technical conditions: A. Annealing (austenite at temperature 920 oC, exposure 2 minutes/mm, water cooling) and B. Tempering (heating at temperature 680 oC, exposure 4 minutes/mm, air cooling). The micro-structural analysis showed the structural modifications which takes place when tempering within 580-700 oC. Upon heating, the martensite out of balance structural tend to get transformed. To be able to characterize steels in terms of their physical and mechanical properties, a significant role is played by the pull tests. The following mechanical characteristics was determined: ultimate strength (Rm), yielding point standing (Rp0,2), breaking elongation (A5) and the resilience test (KVL).

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References

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Fascicle_9_1_2015
Published
2015-03-15
How to Cite
1.
CONSTANTINESCU S. Influence of Heat Treatment Technology on the Structure and Properties of Thick Sheet Steel ASTMS14 Degree F. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Mar.2015 [cited 28Apr.2024];38(1):5-. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/1364
Issue
Vol 38 No 1 (2015)
Section
Articles

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