Influence of the kissing bond defect on the fatigue life in friction stir welds of 2024 aluminium alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F15%3AN0000005" target="_blank" >RIV/00010669:_____/15:N0000005 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com.ezproxy.techlib.cz/science/article/pii/S0870831216000057?via%3Dihub" target="_blank" >http://www.sciencedirect.com.ezproxy.techlib.cz/science/article/pii/S0870831216000057?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ctmat.2015.03.012" target="_blank" >10.1016/j.ctmat.2015.03.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of the kissing bond defect on the fatigue life in friction stir welds of 2024 aluminium alloy

Popis výsledku v původním jazyce

Static and fatigue experiments were performed on friction stir (FS) welds in 2024-T3 aluminium alloys to investigate the influence of kissing bond (KB) flaws on the static strength and fatigue life of the FS welds. Different categories of FS welded plates were manufactured: a flaw-free plate and FS welded plates with different levels of KB size. The effects of the KB flaws on tensile and fatigue properties of AA2024-T3 specimens extracted from the plates were quantitatively evaluated with respect to the flaw-free weld. The various levels of KB flaw size were investigated with the aim of determining a flaw size that does not affect the fatigue life of the joined 6.35-mm-thick plates. The critical value for the KB geometry seems to be below 400 μm in depth based on the influence on the fatigue life for the investigated categories. The fatigue life of welds with KB flaws of 615 μm average depth was approximately seven times shorter than for flaw-free welds. The test results were supported by metallographic analyses and provide a baseline for definition of the flaw detection requirements related the sensitivity of non-destructive equipment.

Název v anglickém jazyce

Influence of the kissing bond defect on the fatigue life in friction stir welds of 2024 aluminium alloy

Popis výsledku anglicky

Static and fatigue experiments were performed on friction stir (FS) welds in 2024-T3 aluminium alloys to investigate the influence of kissing bond (KB) flaws on the static strength and fatigue life of the FS welds. Different categories of FS welded plates were manufactured: a flaw-free plate and FS welded plates with different levels of KB size. The effects of the KB flaws on tensile and fatigue properties of AA2024-T3 specimens extracted from the plates were quantitatively evaluated with respect to the flaw-free weld. The various levels of KB flaw size were investigated with the aim of determining a flaw size that does not affect the fatigue life of the joined 6.35-mm-thick plates. The critical value for the KB geometry seems to be below 400 μm in depth based on the influence on the fatigue life for the investigated categories. The fatigue life of welds with KB flaws of 615 μm average depth was approximately seven times shorter than for flaw-free welds. The test results were supported by metallographic analyses and provide a baseline for definition of the flaw detection requirements related the sensitivity of non-destructive equipment.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JU - Aeronautika, aerodynamika, letadla

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Ciencia e Tecnologia dos Materiais

ISSN

08708312

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

ES - Španělské království

Počet stran výsledku

8

Strana od-do

92-99

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84963838186