Investigation of mechanical properties and microstructure of X60 line-pipe steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00349602" target="_blank" >RIV/68407700:21220/19:00349602 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/25797000:_____/19:N0000056

Výsledek na webu

<a href="https://doi.org/10.1016/j.prostr.2019.08.031" target="_blank" >https://doi.org/10.1016/j.prostr.2019.08.031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2019.08.031" target="_blank" >10.1016/j.prostr.2019.08.031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of mechanical properties and microstructure of X60 line-pipe steel

Popis výsledku v původním jazyce

A segment of seam pipeline with an outer diameter (OD) 813 mm and wall thickness (WT) 10,6 mm, operating since 1974, was used for investigation of its mechanical properties and microstructure. The results of the tensile test show that nominal values of minimum yield point, ultimate tensile strength and ductility were reached in all specimens. Charpy V-notch test was carried out on base metal, heat affected zone and seam weld at temperatures 40, 20, 0, -20, -40 and -60 degrees C. In case of base metal, L-T orientation showed higher upper shelf energy (USE) and ductile-brittle transition temperature (DBTT) than T-L orientation than is typical for hot-rolled material. The lowest impact energy was measured in the heat affected zone and seam weld due to the presence of heterogeneous microstructure consisting of grain boundary ferrite, polygonal ferrite and Widmanstatten ferrite. (C) 2019 The Authors. Published by Elsevier B.V.

Název v anglickém jazyce

Investigation of mechanical properties and microstructure of X60 line-pipe steel

Popis výsledku anglicky

A segment of seam pipeline with an outer diameter (OD) 813 mm and wall thickness (WT) 10,6 mm, operating since 1974, was used for investigation of its mechanical properties and microstructure. The results of the tensile test show that nominal values of minimum yield point, ultimate tensile strength and ductility were reached in all specimens. Charpy V-notch test was carried out on base metal, heat affected zone and seam weld at temperatures 40, 20, 0, -20, -40 and -60 degrees C. In case of base metal, L-T orientation showed higher upper shelf energy (USE) and ductile-brittle transition temperature (DBTT) than T-L orientation than is typical for hot-rolled material. The lowest impact energy was measured in the heat affected zone and seam weld due to the presence of heterogeneous microstructure consisting of grain boundary ferrite, polygonal ferrite and Widmanstatten ferrite. (C) 2019 The Authors. Published by Elsevier B.V.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedia Structural Integrity - 3rd International Conference on Structural Integrity

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

8

Strana od-do

230-237

Název nakladatele

Elsevier B.V.

Místo vydání

Amsterdam

Místo konání akce

Funchal, Madeira

Datum konání akce

2. 9. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000505162900030