Affect of Tempering Temperatures on Mechanical Properties of Weld Joints in Low-Alloy Creep-Resistant Steels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F04%3A00010729" target="_blank" >RIV/61989100:27230/04:00010729 - 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

Affect of Tempering Temperatures on Mechanical Properties of Weld Joints in Low-Alloy Creep-Resistant Steels

Original language description

This article presents hardening of weld joints in 15 128, T23, T24 and T25 grade steels during extensive exposure at elevated operating temperatures. The monitored hardening relates to the supplementary precipitation of dispersed particles. Electron microscopy identified hardening particles MX in 15 128 grade steel. The affect of tempering temperature on mechanical and, in particular, plastic properties of weld joints was demonstrated. In the case of T23 and T24 grade steels, which should be used for manufacture of so-called membrane walls, manufacturers are making efforts to completely leave out tempering after welding. However, achieved results show that the extent of secondary hardening is clearly dependent on application of tempering after welding.Non-tempered weld joints are subject to unacceptable increase of hardness during exposure to operating temperatures. The results of this research can be applied to increase the operating reliability of power engineering equipment manufac

Czech name

Vliv teploty popouštění na mechanické vlastnosti svarových spojů nízkolegovaných žárupevných ocelí

Czech description

This article presents hardening of weld joints in 15 128, T23, T24 and T25 grade steels during extensive exposure at elevated operating temperatures. The monitored hardening relates to the supplementary precipitation of dispersed particles. Electron microscopy identified hardening particles MX in 15 128 grade steel. The affect of tempering temperature on mechanical and, in particular, plastic properties of weld joints was demonstrated. In the case of T23 and T24 grade steels, which should be used for manufacture of so-called membrane walls, manufacturers are making efforts to completely leave out tempering after welding. However, achieved results show that the extent of secondary hardening is clearly dependent on application of tempering after welding.Non-tempered weld joints are subject to unacceptable increase of hardness during exposure to operating temperatures. The results of this research can be applied to increase the operating reliability of power engineering equipment manufac

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/LN00B029" target="_blank" >LN00B029: Centre of Materials and Technology Resaerch</a><br>

Continuities

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

Publication year

2004

Confidentiality

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

Name of the periodical

Acta Metallurgica Slovaca

ISSN

1335-1532

e-ISSN

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Volume of the periodical

10

Issue of the periodical within the volume

2

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

193-200

UT code for WoS article

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EID of the result in the Scopus database

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