Creep and microstructural processes in a low-alloy 2.25%Cr1.6%W steel (ASTM Grade 23)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00450056" target="_blank" >RIV/68081723:_____/15:00450056 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.matchar.2015.08.008" target="_blank" >http://dx.doi.org/10.1016/j.matchar.2015.08.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matchar.2015.08.008" target="_blank" >10.1016/j.matchar.2015.08.008</a>

Result language

angličtina

Original language name

Creep and microstructural processes in a low-alloy 2.25%Cr1.6%W steel (ASTM Grade 23)

Original language description

A low-alloy 2.25%Cr1%Mo steel (ASTM Grade 22) has been greatly improved by the substitution of almost all of the 1%Mo by 1.6%W. The improved material has been standardized as P/T23 steel (Fe?2.25Cr?1.6W?0.25V?0.05Nb?0.07C). The present investigation wasconducted on T23 steel in an effort to obtain a more complete description and understanding of the role of the microstructural evolution and deformation processes in high-temperature creep. Constant load tensile creep tests were carried out in an argon atmosphere in the temperature range 500?650 °C at stresses ranging from 50 to 400 MPa. It was found that the diffusion in the matrix lattice is the creep-rate controlling process. The results of an extensive transmission electron microscopy (TEM) analysisprogramme to investigate microstructure evolution as a function of temperature are described and compared with the thermodynamic calculations using the software package Thermo-Calc. The significant creep-strength drop of T23 steel after

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

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Materials Characterization

ISSN

1044-5803

e-ISSN

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Volume of the periodical

109

Issue of the periodical within the volume

NOV

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

1-8

UT code for WoS article

000365365400001

EID of the result in the Scopus database

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