Determination of CCT Diagram by Dilatometry Analysis of High-Strength Low-Alloy S960MC Steel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F22%3A00010270" target="_blank" >RIV/46747885:24210/22:00010270 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/15/13/4637" target="_blank" >https://www.mdpi.com/1996-1944/15/13/4637</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma15134637" target="_blank" >10.3390/ma15134637</a>

Result language

angličtina

Original language name

Determination of CCT Diagram by Dilatometry Analysis of High-Strength Low-Alloy S960MC Steel

Original language description

High-strength steels are used more than general structural steel due to their combination of properties such as high strength, good toughness and weldability. They are mainly used in the manufacture of heavy vehicles for the mining industry, cranes, transportation, etc. However, welding these grades of steel brings new challenges. Also, a simulation for welding high-strength steel is required more often. To insert a material database into the simulation program, it is necessary to conduct investigations using CCT (Continuous Cooling Transformation) diagrams, welded joints research, and more. To investigate the behavior of S960MC steel during heating and cooling, we used dilatometry analysis supported by EBSD (Electron Backscatter Diffraction) analysis. A CCT diagram was constructed. The transformation temperatures of A(c1) and A(c3) increase with increasing heating rate. The A(c1) temperature increased by 54 degrees C and the A(c3) temperatures by 24 degrees C as the heating rate increased from 0.1 degrees C/s to 250 degrees C/s. The austenite decomposition temperatures have a decreasing trend in the cooling phase with increasing cooling rate. As the cooling rate changes from 0.03 degrees C/s to 100 degrees C/s, the initial transformation temperature drops from 813 degrees C to 465 degrees C. An increase in the cooling rate means a higher proportion of bainite and martensite. At the same time, the hardness increases from 119 HV10 to 362 HV10.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

13

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

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UT code for WoS article

000825620100001

EID of the result in the Scopus database

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