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THE EFFECT OF STRAIN RATE ON MASTER CURVE OF THE MARTENSITIC CHROMIUM STEEL

1 BUCKI Tomasz
Co-authors:
2 RZEPA Sylwia 3 MELZER Daniel 3 KONOPÍK Pavel 3 DŽUGAN Jan 3 RUND Martin
Institutions:
1 Kielce University of Technology, Kielce, Poland, EU, e-mail: tbucki@tu.kielce.pl
2 AGH University of Science and Technology, Kraków, Poland, EU
3 COMTES FHT a.s., Dobřany, Czech Republic, EU
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
641-645
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
481 views / 252 downloads
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Abstract

The effect of the strain rate on master curve of the martensitic chromium steel was examined. The tests were performed in both quasi-static and dynamic conditions. The pre-cracked Charpy V specimens were used in the test to allow to determinate Master Curve in dynamic conditions using instrumented standard Charpy pendulum. On the basis of the research, the effect of the strain rate on master curve was found. The increasing of strain rate from quasi-static to dynamic conditions in tested steel caused the significant decrease of KJc and consequently an increase of the reference temperature (T0).

Keywords: Master Curve, Fracture Toughness, Martensitic chromium steel, Strain rate

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