Tensile mechanical performance of electron-beam welded joints from aluminum alloy (Al-Mg-Si) 6156

Research output: Journal contributionsJournal articlesResearchpeer-review

Standard

Tensile mechanical performance of electron-beam welded joints from aluminum alloy (Al-Mg-Si) 6156. / Alexopoulos, Nikolaos D.; Examilioti, Theano N.; Stergiou, Vasilis et al.
In: Procedia Structural Integrity, Vol. 2, 2016, p. 3539-3545.

Research output: Journal contributionsJournal articlesResearchpeer-review

Harvard

APA

Vancouver

Alexopoulos ND, Examilioti TN, Stergiou V, Kourkoulis SK. Tensile mechanical performance of electron-beam welded joints from aluminum alloy (Al-Mg-Si) 6156. Procedia Structural Integrity. 2016;2:3539-3545. doi: 10.1016/j.prostr.2016.06.441

Bibtex

@article{d49903e3ee16434b8b689cb2b1714e30,
title = "Tensile mechanical performance of electron-beam welded joints from aluminum alloy (Al-Mg-Si) 6156",
abstract = " The mechanical behavior of both, reference and electron beam welded aluminum alloy 6156 specimens was experimentally investigated. Sheets of AA6156 were artificially aged before and after the welding process and tensile specimens were machined from the welded sheets according to the ASTM E8 standard. The specimens were artificially aged at 170 ° C for different times that corresponded to all precipitation-hardening conditions, namely under-ageing (UA), peak-ageing (PA) and over-ageing (OA). The results showed that the effect of welding without any heat treatment (condition T4) decreases by, about 100 MPa, the yield stress and the yield strength, while the remaining elongation at fracture hardly exceeds 4 %. It was also shown that artificial ageing before welding increases the tensile ductility (almost 50 % joint efficiency in deformation) while the artificial ageing post to welding significantly increases the strength properties (more than 75 % joint efficiency in strength). ",
keywords = "aluminum alloy, heat treatment, precipitation-hardening, tension, welding, Engineering",
author = "Alexopoulos, {Nikolaos D.} and Examilioti, {Theano N.} and Vasilis Stergiou and Kourkoulis, {Stavros K.}",
year = "2016",
doi = "10.1016/j.prostr.2016.06.441",
language = "English",
volume = "2",
pages = "3539--3545",
journal = "Procedia Structural Integrity",
issn = "2452-3216",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Tensile mechanical performance of electron-beam welded joints from aluminum alloy (Al-Mg-Si) 6156

AU - Alexopoulos, Nikolaos D.

AU - Examilioti, Theano N.

AU - Stergiou, Vasilis

AU - Kourkoulis, Stavros K.

PY - 2016

Y1 - 2016

N2 - The mechanical behavior of both, reference and electron beam welded aluminum alloy 6156 specimens was experimentally investigated. Sheets of AA6156 were artificially aged before and after the welding process and tensile specimens were machined from the welded sheets according to the ASTM E8 standard. The specimens were artificially aged at 170 ° C for different times that corresponded to all precipitation-hardening conditions, namely under-ageing (UA), peak-ageing (PA) and over-ageing (OA). The results showed that the effect of welding without any heat treatment (condition T4) decreases by, about 100 MPa, the yield stress and the yield strength, while the remaining elongation at fracture hardly exceeds 4 %. It was also shown that artificial ageing before welding increases the tensile ductility (almost 50 % joint efficiency in deformation) while the artificial ageing post to welding significantly increases the strength properties (more than 75 % joint efficiency in strength).

AB - The mechanical behavior of both, reference and electron beam welded aluminum alloy 6156 specimens was experimentally investigated. Sheets of AA6156 were artificially aged before and after the welding process and tensile specimens were machined from the welded sheets according to the ASTM E8 standard. The specimens were artificially aged at 170 ° C for different times that corresponded to all precipitation-hardening conditions, namely under-ageing (UA), peak-ageing (PA) and over-ageing (OA). The results showed that the effect of welding without any heat treatment (condition T4) decreases by, about 100 MPa, the yield stress and the yield strength, while the remaining elongation at fracture hardly exceeds 4 %. It was also shown that artificial ageing before welding increases the tensile ductility (almost 50 % joint efficiency in deformation) while the artificial ageing post to welding significantly increases the strength properties (more than 75 % joint efficiency in strength).

KW - aluminum alloy

KW - heat treatment

KW - precipitation-hardening

KW - tension

KW - welding

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85054507251&partnerID=8YFLogxK

U2 - 10.1016/j.prostr.2016.06.441

DO - 10.1016/j.prostr.2016.06.441

M3 - Journal articles

AN - SCOPUS:85054507251

VL - 2

SP - 3539

EP - 3545

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

SN - 2452-3216

ER -