Determination of phase transformations temperatures and heat capacities of alloys based on Fe-C-Cr

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10237514" target="_blank" >RIV/61989100:27360/17:10237514 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of phase transformations temperatures and heat capacities of alloys based on Fe-C-Cr

Original language description

Two alloys based on Fe-C-Cr were studied. Alloy A contained carbon of 0.410 wt. % and chromium of 1.083 wt. %. Alloy B contained carbon of 0.430 wt. % and chromium of 4.980 wt. %. Temperatures of phase transformations and heat capacities were studied in the low temperature region. Temperatures of phase transformations were obtained using Differentianl Thermal Analysis (DTA) and heat capacities were obtained using Differential Scanning Calorimetry (DSC). The Setaram Setsys 18TM was used for experiments with the use of DTA method. Measurements were done in inert atmosphere of pure argon by a heating rate of 10°C min-1. The Setaram MHTC (Multi High Temperature Calorimeter) 96 with 3D DSC sensor was used for experiments with the use of DSC method. Measurements were done in inert atmosphere of pure argon by a heating and cooling rate of 5°C min-1. Phase transformation temperatures were obtained by heating process and were also approximated to “equilibrium conditions”. The experimental data were compared and discussed with the calculation results using SW Thermo Calc with the use of the TCFE8 (Thermo-Calc Fe-based alloys) database. On the DSC were observed of heat capacities of M7C3, M23C6 carbides and Sigma phase formation, which was supported by calculation of presence of mentioned phases as a function of temperature in SW Thermo-Calc.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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