Continuous wave laser welding of Ti6Al4V alloy joints: Microstructure and mechanical properties

Azeez Lawan Rominiyi; Peter Madindwa Mashinini

doi:10.1016/j.matlet.2023.133934

Continuous wave laser welding of Ti6Al4V alloy joints: Microstructure and mechanical properties

Azeez Lawan Rominiyi, Peter Madindwa Mashinini

Mechanical and Industrial Engineering Technology

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

In this work, continuous wave laser beam welding was used to achieve a butt joint of 3 mm-thick Ti6Al4V alloy sheets. Microstructural analysis indicates the presence of martensitic αʹ and acicular α of different forms in the fusion zone (FZ) of the welded samples. The hardness of the FZ of the welded samples increases with decreasing heat input. Sample welded at heat input of 84 J/mm displayed the best combination of properties. The fracture of the tensile samples at the base metal (BM) showed that the butt joints are stronger than the BM.

Original language	English
Article number	133934
Journal	Materials Letters
Volume	336
DOIs	https://doi.org/10.1016/j.matlet.2023.133934
Publication status	Published - 1 Apr 2023

Keywords

Laser beam welding
Mechanical properties
Microstructure
Ti6Al4V alloy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2023.133934

Cite this

@article{dbf5d9f4ea3849c08477553608405704,

title = "Continuous wave laser welding of Ti6Al4V alloy joints: Microstructure and mechanical properties",

abstract = "In this work, continuous wave laser beam welding was used to achieve a butt joint of 3 mm-thick Ti6Al4V alloy sheets. Microstructural analysis indicates the presence of martensitic αʹ and acicular α of different forms in the fusion zone (FZ) of the welded samples. The hardness of the FZ of the welded samples increases with decreasing heat input. Sample welded at heat input of 84 J/mm displayed the best combination of properties. The fracture of the tensile samples at the base metal (BM) showed that the butt joints are stronger than the BM.",

keywords = "Laser beam welding, Mechanical properties, Microstructure, Ti6Al4V alloy",

author = "Rominiyi, {Azeez Lawan} and Mashinini, {Peter Madindwa}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = apr,

day = "1",

doi = "10.1016/j.matlet.2023.133934",

language = "English",

volume = "336",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Continuous wave laser welding of Ti6Al4V alloy joints

T2 - Microstructure and mechanical properties

AU - Rominiyi, Azeez Lawan

AU - Mashinini, Peter Madindwa

PY - 2023/4/1

Y1 - 2023/4/1

N2 - In this work, continuous wave laser beam welding was used to achieve a butt joint of 3 mm-thick Ti6Al4V alloy sheets. Microstructural analysis indicates the presence of martensitic αʹ and acicular α of different forms in the fusion zone (FZ) of the welded samples. The hardness of the FZ of the welded samples increases with decreasing heat input. Sample welded at heat input of 84 J/mm displayed the best combination of properties. The fracture of the tensile samples at the base metal (BM) showed that the butt joints are stronger than the BM.

AB - In this work, continuous wave laser beam welding was used to achieve a butt joint of 3 mm-thick Ti6Al4V alloy sheets. Microstructural analysis indicates the presence of martensitic αʹ and acicular α of different forms in the fusion zone (FZ) of the welded samples. The hardness of the FZ of the welded samples increases with decreasing heat input. Sample welded at heat input of 84 J/mm displayed the best combination of properties. The fracture of the tensile samples at the base metal (BM) showed that the butt joints are stronger than the BM.

KW - Laser beam welding

KW - Mechanical properties

KW - Microstructure

KW - Ti6Al4V alloy

UR - http://www.scopus.com/inward/record.url?scp=85146640546&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2023.133934

DO - 10.1016/j.matlet.2023.133934

M3 - Article

AN - SCOPUS:85146640546

SN - 0167-577X

VL - 336

JO - Materials Letters

JF - Materials Letters

M1 - 133934

ER -

Continuous wave laser welding of Ti6Al4V alloy joints: Microstructure and mechanical properties

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this