Use of High-temperature Thermal Analysis for Determination of the Liquidus and Solidus Temperatures for Bearing Steels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F16%3A86097378" target="_blank" >RIV/61989100:27360/16:86097378 - 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

Use of High-temperature Thermal Analysis for Determination of the Liquidus and Solidus Temperatures for Bearing Steels

Original language description

The paper is devoted to comparison of the solidus and liquidus temperatures determined by methods of thermal analysis for industrially produced steel grade 100CrMo7. Two modern devices for high temperature thermal analysis were used. Method of direct thermal analysis (PTA) was applied on the device STA 449 F3 Jupiter with use of samples weighing approx. 22 g. The samples weighing approx. 120 to 210 mg were subjected to a differential thermal analysis (DTA) on the device Setaram SETSYS 18TM. Solidus and liquidus temperatures were obtained on the basis of evaluation of experimentally obtained curves during heating (DTA) and cooling (PTA - only liquidus temperature). The results of measurements using methods of thermal analysis were also confronted with the corresponding temperatures obtained from the industrial partner and with the temperatures obtained using specialised programs IDS and ThermoCalc. Identically as in earlier works it was proved that for more accurate determination of the liquidus and solidus temperatures of real steel grades it is very beneficial to use multiple methods of high-temperature thermal analysis. The liquidus temperature obtained by both methods (PTA and DTA) differs only by 1 oC. Variability of the results from individual experiments using different methods is also very low, proving thus the robustness of both methods used. The importance of using different methods of thermal analysis, their mutual verification, is also confirmed by the fact that theoretically determined temperatures differ from the experimentally determined values.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/LO1203" target="_blank" >LO1203: Regional Materials Science and Technology Centre - Feasibility Program</a><br>

Continuities

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

Publication year

2016

Confidentiality

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

Name of the periodical

Hutnické listy

ISSN

0018-8069

e-ISSN

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Volume of the periodical

LXIX

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

4-9

UT code for WoS article

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EID of the result in the Scopus database

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