Microstructural changes during deformation of AISI 300 grade austenitic stainless steels: Impact of chemical heterogeneity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00465434" target="_blank" >RIV/68081723:_____/16:00465434 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.prostr.2016.06.288" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2016.06.288</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2016.06.288" target="_blank" >10.1016/j.prostr.2016.06.288</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructural changes during deformation of AISI 300 grade austenitic stainless steels: Impact of chemical heterogeneity

Popis výsledku v původním jazyce

The importance of chemical heterogeneity for destabilization of austenitic structure and formation of deformation induced martensite (DIM) in AISI 300 grade austenitic stainless steels (ASSs) of different level of austenite stability (316L, 304, 301LN) is pointed out. Color etching reveals that the structure of wrought Cr–Ni type steels of diverse wrought semi-product forms (plates, sheets, bars) is never fully chemically homogeneous. Confrontation of distribution and morphology of DIM after static and cyclic straining with the characteristic local variations in chemical composition proved prominent role of chemical banding in the destabilization of originally fully austenitic structure. This fact should be considered especially when interpreting the results of hydrogen embrittlement tensile testing of Cr–Ni ASSs with lowered Ni content. An impact of chemical heterogeneity on microstructural changes during production of UFG structure of 301LN and its cyclic straining is highlighted.

Název v anglickém jazyce

Microstructural changes during deformation of AISI 300 grade austenitic stainless steels: Impact of chemical heterogeneity

Popis výsledku anglicky

The importance of chemical heterogeneity for destabilization of austenitic structure and formation of deformation induced martensite (DIM) in AISI 300 grade austenitic stainless steels (ASSs) of different level of austenite stability (316L, 304, 301LN) is pointed out. Color etching reveals that the structure of wrought Cr–Ni type steels of diverse wrought semi-product forms (plates, sheets, bars) is never fully chemically homogeneous. Confrontation of distribution and morphology of DIM after static and cyclic straining with the characteristic local variations in chemical composition proved prominent role of chemical banding in the destabilization of originally fully austenitic structure. This fact should be considered especially when interpreting the results of hydrogen embrittlement tensile testing of Cr–Ni ASSs with lowered Ni content. An impact of chemical heterogeneity on microstructural changes during production of UFG structure of 301LN and its cyclic straining is highlighted.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-32665S" target="_blank" >GA13-32665S: Mechanismy únavového poškozování u ultrajemnozrnných nerezavějících ocelí</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

21st European Conference on Fracture

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

8

Strana od-do

2299-2306

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Catania

Datum konání akce

20. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000387976802045