Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion

Amano, Hiroki; Ishimoto, Takuya; Hagihara, Koji; Suganuma, Ryoya; Aiba, Keisuke; Sun, Shi Hai; Wang, Pan; Nakano, Takayoshi

doi:https://doi.org/10.1080/17452759.2023.2169172

Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion

Amano, Hiroki; Ishimoto, Takuya; Hagihara, Koji et al.

Virtual and Physical Prototyping, 2023, 18(1), e2169172

Number of Access:645（2025-07-18 10:08 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/93118

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Title	Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion
Creator	CreatorName Amano, Hiroki
	NRID 1000050508835 1000050508835 ORCID 0000-0003-0081-0591 0000-0003-0081-0591 researchmap permalink i_taku i_taku Scopus Author ID 35310484700 35310484700 CreatorName Ishimoto, Takuya
	NRID 1000010346182 1000010346182 researchmap permalink read0191194 read0191194 Scopus Author ID 7007016278 7007016278 CreatorName Hagihara, Koji
	CreatorName Suganuma, Ryoya
	CreatorName Aiba, Keisuke
	CreatorName Sun, Shi Hai
	CreatorName Wang, Pan
	NRID 1000030243182 1000030243182 ORCID 0000-0001-8052-1698 0000-0001-8052-1698 researchmap permalink read0013987 read0013987 Scopus Author ID 7403896013 7403896013 CreatorName Nakano, Takayoshi
Subject	crystallographic orientation
	Gas flow direction
	laser powder bed fusion
	scan strategy
	thermal conductivity
Description	Amano H., Ishimoto T., Hagihara K., et al. Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion. Virtual and Physical Prototyping 18, e2169172 (2023); https://doi.org/10.1080/17452759.2023.2169172.
Abstract	This study demonstrated that the gas flow direction in the laser beam powder bed fusion (PBF-LB) significantly affects the crystallographic texture evolved in the products. The effect on texture is attributed to the difference in the melt pool depth, which depends on gas flow direction. The melt pool was shallower when the laser scanning and gas flow directions were parallel than when they were perpendicular. This phenomenon should be of particular concern when applying Scan Strategy_XY wherein the laser was scanned with a 90° rotation in each layer, which is often used in PBF-LB. The asymmetry in the melt pool depth generated by laser scanning in the x- and y-directions can lead to unintended variations in the crystallographic texture. The gas phase would interact with a part being manufactured immediately beneath the gas and affect the crystallographic feature of the product.
Publisher	Taylor and Francis Ltd.
Source Title	Virtual and Physical Prototyping
Volume (Issue)	18(1)
Page	e2169172
Date of Issued	2023-02-01
Language	English
Handle URL	https://hdl.handle.net/11094/93118
PISSN	17452759
eISSN	17452767
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1080/17452759.2023.2169172
Access Rights	open access
CopyRight	This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Virtual and Physical Prototyping. 2023, 18(1), p. e2169172
DC.title	Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion
DC.creator	Amano, Hiroki
	Ishimoto, Takuya
	Hagihara, Koji
	Suganuma, Ryoya
	Aiba, Keisuke
	Sun, Shi Hai
	Wang, Pan
	Nakano, Takayoshi
DC.publisher	Taylor and Francis Ltd.
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2023-02-01
DC.identifier	https://doi.org/10.1080/17452759.2023.2169172
DC.subject	crystallographic orientation
	Gas flow direction
	laser powder bed fusion
	scan strategy
	thermal conductivity
DC.description	Amano H., Ishimoto T., Hagihara K., et al. Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion. Virtual and Physical Prototyping 18, e2169172 (2023); https://doi.org/10.1080/17452759.2023.2169172.
DCTERMS.abstract	This study demonstrated that the gas flow direction in the laser beam powder bed fusion (PBF-LB) significantly affects the crystallographic texture evolved in the products. The effect on texture is attributed to the difference in the melt pool depth, which depends on gas flow direction. The melt pool was shallower when the laser scanning and gas flow directions were parallel than when they were perpendicular. This phenomenon should be of particular concern when applying Scan Strategy_XY wherein the laser was scanned with a 90° rotation in each layer, which is often used in PBF-LB. The asymmetry in the melt pool depth generated by laser scanning in the x- and y-directions can lead to unintended variations in the crystallographic texture. The gas phase would interact with a part being manufactured immediately beneath the gas and affect the crystallographic feature of the product.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	93118
citation_title	Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion
citation_author	Amano, Hiroki
	Ishimoto, Takuya
	Hagihara, Koji
	Suganuma, Ryoya
	Aiba, Keisuke
	Sun, Shi Hai
	Wang, Pan
	Nakano, Takayoshi
citation_publisher	Taylor and Francis Ltd.
citation_language	English
citation_date	2023-02-01
citation_journal_title	Virtual and Physical Prototyping
citation_volume	18
citation_issue	1
citation_firstpage	e2169172
citation_doi	https://doi.org/10.1080/17452759.2023.2169172
citation_public_url	https://hdl.handle.net/11094/93118

Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion

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