Minor Phase Evolution in Homogeneous T24 Welds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F14%3A%230000382" target="_blank" >RIV/25870807:_____/14:#0000382 - isvavai.cz</a>

Result on the web

<a href="http://www.scientific.net" target="_blank" >http://www.scientific.net</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.782.143" target="_blank" >10.4028/www.scientific.net/MSF.782.143</a>

Result language

angličtina

Original language name

Minor Phase Evolution in Homogeneous T24 Welds

Original language description

This paper deals with the characterization of hardness, microstructure and precipitation processes in homogeneous T24 welds in the as-welded state and after laboratory PWHT at 745°C for 1 and 6 hours, respectively. Tempering of a T24 steel during qualityheat treatment is accompanied by intensive precipitation of MX, M7C3 and M23C6 particles in the bainitic matrix. It was found that SAW welding resulted in a pronounced dissolution of minor phases in the base material close to the joined faces. In the as-welded state microstructure of the CGHAZ was bainitic and the maximum HV10 value in this part of the HAZ reached 382 units. The dominant strengthening mechanism in the CGHAZ was attributed to transformation strengthening due to decomposition of austenite to bainite. Also the HV10 level in the bainitic filler metal (ca 320 HV10) was very close to the maximum acceptable hardness. PWHT at 745°C for 1 hour resulted in a significant decrease of hardness in the weld metal and especially in th

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/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regional materials science and technology centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Materials Science Forum

ISSN

1662-9752

e-ISSN

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Volume of the periodical

782

Issue of the periodical within the volume

XV

Country of publishing house

CH - SWITZERLAND

Number of pages

5

Pages from-to

143-148

UT code for WoS article

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EID of the result in the Scopus database

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