Effect of primer and sealant in refill friction stir spot welded joints on strength and fatigue behaviour of aluminium alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F23%3AN0000006" target="_blank" >RIV/00010669:_____/23:N0000006 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142112322007058?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142112322007058?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijfatigue.2022.107455" target="_blank" >10.1016/j.ijfatigue.2022.107455</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of primer and sealant in refill friction stir spot welded joints on strength and fatigue behaviour of aluminium alloy

Popis výsledku v původním jazyce

The refill friction stir spot welding (RFSSW) is one of the promising friction stir welding (FSW) methods consisting in the joint creation by plunging and retracting the rotating tool into the overlapped sheets without an exit hole after welding. This work aims to fulfil a knowledge gap related to use of aluminium semi-products in a final configuration state (including anodizing, primer and sealant application) for RFSSW process by means of the lap-shear and cross-tension mechanical test, fatigue performance, metallographic and fractographic analyses, and digital image correlation (DIC) technique. Sheet semiproducts of thicknesses from 2 to 3 mm made of AA7050-T7451 and AA2024-T3 aluminium alloys in bare and/or anodised condition were used for the lap-joint specimens manufacturing and five various material joint combinations were analysed. The effect on static strength for the joint configurations with primer and sealant was studied and compared with the bare material’s RFSSW joints. Fatigue tests showed that the primed configurations exhibited a higher scatter of the results and a different slope of fatigue curve with a higher fatigue limit value as compared with the bare material’s joints exhibiting a higher ultimate static strength.

Název v anglickém jazyce

Effect of primer and sealant in refill friction stir spot welded joints on strength and fatigue behaviour of aluminium alloy

Popis výsledku anglicky

The refill friction stir spot welding (RFSSW) is one of the promising friction stir welding (FSW) methods consisting in the joint creation by plunging and retracting the rotating tool into the overlapped sheets without an exit hole after welding. This work aims to fulfil a knowledge gap related to use of aluminium semi-products in a final configuration state (including anodizing, primer and sealant application) for RFSSW process by means of the lap-shear and cross-tension mechanical test, fatigue performance, metallographic and fractographic analyses, and digital image correlation (DIC) technique. Sheet semiproducts of thicknesses from 2 to 3 mm made of AA7050-T7451 and AA2024-T3 aluminium alloys in bare and/or anodised condition were used for the lap-joint specimens manufacturing and five various material joint combinations were analysed. The effect on static strength for the joint configurations with primer and sealant was studied and compared with the bare material’s RFSSW joints. Fatigue tests showed that the primed configurations exhibited a higher scatter of the results and a different slope of fatigue curve with a higher fatigue limit value as compared with the bare material’s joints exhibiting a higher ultimate static strength.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

International Journal of Fatigue

ISSN

0142-1123

e-ISSN

0142-1123

Svazek periodika

168

Číslo periodika v rámci svazku

3/2023

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

000912476500001

EID výsledku v databázi Scopus

2-s2.0-85144317055