Microstructure and creep behaviour of P92 steel after HPT

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F18%3A00489151" target="_blank" >RIV/68081723:_____/18:00489151 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0921509318304088?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0921509318304088?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2018.03.059" target="_blank" >10.1016/j.msea.2018.03.059</a>

Result language

angličtina

Original language name

Microstructure and creep behaviour of P92 steel after HPT

Original language description

The influence of the application of severe plastic deformation on microstructure changes and creep deformationnbehaviour was investigated in P92 creep-resistant pipe steel. P92 steel in its as-received state, with a microstructurentypical of tempered martensite, was subjected to high-pressure torsion at room temperature. An investigationnof the microstructure using an electron backscatter diffraction technique revealed that severe plasticndeformation led to the subsequent formation of an ultrafine-grained microstructure, containing {110} fibrentexture and randomly misoriented boundaries. The microstructure characteristics and hardness measurementsnexhibited saturated values at an equivalent strain of higher than about 20. The creep behaviour of the ultrafinegrainednspecimen produced in the saturated region exhibited a minimum creep rate that was about two orders ofnmagnitude faster, and a larger creep ductility, in comparison with the as-received state. Creep exposure at 873 Knwith a time to fracture of about 3 h led to a slight grain coarsening and to the formation of Laves phase.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA16-09518S" target="_blank" >GA16-09518S: Creep damage mechanisms in advanced tungsten modified 9%Cr ferritic steel</a><br>

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Materials Science and Engineering A Structural Materials Properties Microstructure and Processing

ISSN

0921-5093

e-ISSN

1873-4936

Volume of the periodical

723

Issue of the periodical within the volume

APR

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

287-295

UT code for WoS article

000430784400032

EID of the result in the Scopus database

2-s2.0-85044117223