9Cr-1W steel strengthened by AlN and BN dispersion

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00558997" target="_blank" >RIV/61389021:_____/22:00558997 - isvavai.cz</a>

Alternative codes found

RIV/68081723:_____/22:00558997

Result on the web

<a href="https://link.springer.com/article/10.1007/s10853-022-07395-2" target="_blank" >https://link.springer.com/article/10.1007/s10853-022-07395-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10853-022-07395-2" target="_blank" >10.1007/s10853-022-07395-2</a>

Result language

angličtina

Original language name

9Cr-1W steel strengthened by AlN and BN dispersion

Original language description

Ferritic-martensitic steels of 9Cr-1W type strengthened by oxide dispersion (ODS) are candidate structural materials of in-vessel components of proposed sodium-cooled fast reactors and fusion reactors. As a promising alternative, this work aimed to design ferritic-martensitic 9Cr-1W steels of Eurofer type strengthened by a homogeneous dispersion of nitrides. AlN and BN were selected for this pioneering study, and the two nitride dispersion strengthened (NDS) steels were prepared by mechanical alloying and compacting using spark plasma sintering (SPS). Their mechanical properties were assessed by tensile tests ranging from room temperature to 800 degrees C and compared to the tensile characteristics of conventional as well as oxide dispersion strengthened (ODS) 9Cr-1W steels. The strength of the two NDS steels presented here was comparable or even higher than that of the conventional and the ODS variants. Furthermore, the uniform plastic strain behaviour of the NDS steels was similar to the ODS counterparts prepared by HIP or SPS from mechanically alloyed powders. In addition, the BN reinforcement effectively prevented large plastic deformation at temperatures above 600 degrees C that would typically result in a significant increase in total elongation, a phenomenon encountered in 9Cr-1W steels. This quality could open a new application window and potentially lead to the development of heat-resistant low-chromium 9Cr-1W type steels.

Czech name

—

Czech description

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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/GA20-20873S" target="_blank" >GA20-20873S: Development of High Temperature Liquid Metal Resistant ODS Steels for Fission/Fusion Application</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Journal of Materials Science

ISSN

0022-2461

e-ISSN

1573-4803

Volume of the periodical

57

Issue of the periodical within the volume

26

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

12572-12584

UT code for WoS article

000817905300003

EID of the result in the Scopus database

2-s2.0-85133002877