Laser butt welding of thin ti6al4v sheets: Effects of welding parameters

Peter Omoniyi; Rasheedat Mahamood; Nana Arthur; Sisa Pityana; Samuel Skhosane; Yasuhiro Okamoto; Togo Shinonaga; Martin Maina; Tien Chien Jen; Esther Akinlabi

doi:10.3390/JCS5090246

Laser butt welding of thin ti6al4v sheets: Effects of welding parameters

Peter Omoniyi, Rasheedat Mahamood, Nana Arthur, Sisa Pityana, Samuel Skhosane, Yasuhiro Okamoto, Togo Shinonaga, Martin Maina, Tien Chien Jen, Esther Akinlabi

研究成果 › 査読

4 被引用数 (Scopus)

抄録

Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by laser welding. The effect of laser power and welding speed on the tensile, microhardness, and microstructure of Ti6Al4V alloy is investigated in this paper. Results show that the microhardness is highest at the fusion zone and reduces towards the base metal. The microstructure at the fusion zone shows a transformed needle-like lamellar α phase, with a martensitic α’ phase observed within the heat affected zone. Results of tensile tests show an improved tensile strength compared to the base metal.

本文言語	English
論文番号	246
ジャーナル	Journal of Composites Science
巻	5
号	9
DOI	https://doi.org/10.3390/JCS5090246
出版ステータス	Published - 9月 2021

ASJC Scopus subject areas

セラミックおよび複合材料
工学（その他）

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

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10.3390/JCS5090246

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title = "Laser butt welding of thin ti6al4v sheets: Effects of welding parameters",

abstract = "Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by laser welding. The effect of laser power and welding speed on the tensile, microhardness, and microstructure of Ti6Al4V alloy is investigated in this paper. Results show that the microhardness is highest at the fusion zone and reduces towards the base metal. The microstructure at the fusion zone shows a transformed needle-like lamellar α phase, with a martensitic α{\textquoteright} phase observed within the heat affected zone. Results of tensile tests show an improved tensile strength compared to the base metal.",

keywords = "Fractography, Laser welding, Microhardness, Microstructure, Ti6Al4V",

author = "Peter Omoniyi and Rasheedat Mahamood and Nana Arthur and Sisa Pityana and Samuel Skhosane and Yasuhiro Okamoto and Togo Shinonaga and Martin Maina and Jen, {Tien Chien} and Esther Akinlabi",

note = "Funding Information: Funding:Thisresearch was funded byNATIONALRESEARCH FOUNDATION(NRF) AND JAPAN SOCIETY FOR THE PROMOTION OF SCIENCE (JSPS). Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

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doi = "10.3390/JCS5090246",

language = "English",

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T2 - Effects of welding parameters

AU - Omoniyi, Peter

AU - Mahamood, Rasheedat

AU - Arthur, Nana

AU - Pityana, Sisa

AU - Skhosane, Samuel

AU - Okamoto, Yasuhiro

AU - Shinonaga, Togo

AU - Maina, Martin

AU - Jen, Tien Chien

AU - Akinlabi, Esther

N1 - Funding Information: Funding:Thisresearch was funded byNATIONALRESEARCH FOUNDATION(NRF) AND JAPAN SOCIETY FOR THE PROMOTION OF SCIENCE (JSPS). Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/9

Y1 - 2021/9

N2 - Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by laser welding. The effect of laser power and welding speed on the tensile, microhardness, and microstructure of Ti6Al4V alloy is investigated in this paper. Results show that the microhardness is highest at the fusion zone and reduces towards the base metal. The microstructure at the fusion zone shows a transformed needle-like lamellar α phase, with a martensitic α’ phase observed within the heat affected zone. Results of tensile tests show an improved tensile strength compared to the base metal.

AB - Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by laser welding. The effect of laser power and welding speed on the tensile, microhardness, and microstructure of Ti6Al4V alloy is investigated in this paper. Results show that the microhardness is highest at the fusion zone and reduces towards the base metal. The microstructure at the fusion zone shows a transformed needle-like lamellar α phase, with a martensitic α’ phase observed within the heat affected zone. Results of tensile tests show an improved tensile strength compared to the base metal.

KW - Fractography

KW - Laser welding

KW - Microhardness

KW - Microstructure

KW - Ti6Al4V

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Laser butt welding of thin ti6al4v sheets: Effects of welding parameters

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ASJC Scopus subject areas

UN SDG

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