Influence of preheating temperature on changes in properties in the haz during multipass mig welding of alloy aw 6061 and possibilities of their restoration

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F21%3A00009051" target="_blank" >RIV/46747885:24210/21:00009051 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/met11121902" target="_blank" >https://doi.org/10.3390/met11121902</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met11121902" target="_blank" >10.3390/met11121902</a>

Result language

angličtina

Original language name

Influence of preheating temperature on changes in properties in the haz during multipass mig welding of alloy aw 6061 and possibilities of their restoration

Original language description

Fusion welding of heat-treatable aluminum alloys is generally accompanied by a significant decrease in mechanical properties in the HAZ caused by the dissolution of the hardening phase. The intensity of this decrease in mechanical properties can be reduced by limiting the heat input value. However, this approach is in direct conflict with the principles for welding aluminum and its alloys. Due to the very high thermal conductivity of aluminum alloys, it is necessary to use preheating for thicknesses larger than 5 mm to eliminate non-penetration and cold joints. This paper aims to show the influence of multiple temperature cycles, performed at different preheating temperatures, on changes in the microstructure and mechanical properties. At the same time, the extent to which the original properties of the material can be restored by natural and artificial aging at 160, 175 and 190 °C is also investigated

Czech name

—

Czech description

—

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

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

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

Name of the periodical

Metals

ISSN

2075-4701

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

—

UT code for WoS article

000736554400001

EID of the result in the Scopus database

2-s2.0-85119911277