Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process

Imai, Hisashi; Li, Shufeng; Atsumi, Haruhiko; Kosaka, Yoshiharu; Kojima, Akimichi; Umeda, Junko; Kondoh, Katsuyoshi

doi:https://doi.org/10.18910/5502

Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process

Imai, Hisashi; Li, Shufeng; Atsumi, Haruhiko et al.

Transactions of JWRI, 2009, 38(1), 25-30

Number of Access:463（2025-06-13 10:23 Counts）

Identifier to cite or link to this item: https://doi.org/10.18910/5502

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Title	Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process
Creator	NRID 1000030452379 1000030452379 CreatorName Imai, Hisashi
	CreatorName Li, Shufeng
	CreatorName Atsumi, Haruhiko
	CreatorName Kosaka, Yoshiharu
	CreatorName Kojima, Akimichi
	NRID 1000050345162 1000050345162 researchmap permalink umeda umeda Scopus Author ID 23478776500 23478776500 ORCID 0000-0001-8678-9708 0000-0001-8678-9708 CreatorName Umeda, Junko
	NRID 1000050345138 1000050345138 researchmap permalink kondoh kondoh Scopus Author ID 9942942300 9942942300 CreatorName Kondoh, Katsuyoshi
Subject	Cu-41Zn Brass
	Lead-free
	Bismuth
	Machinability
	Machining chip
Abstract	In this paper, the uniform distribution process of bismuth particles in Cu-40Zn brass alloy by powder metallurgy (P/M) and machinable lead-free P/M brass with bismuth are described. Cu-40Zn Brass with bismuth powders produced by the rapid solidification processing were used as raw materials, having mean particle sizes of 150 μm. Three kinds of billets were prepared for the extrusion, namely green compact, sintered billets by using spark plasma sintering (SPS) and cast ingot. Bismuth dispersed in brass powder formed grains and dissolved into the powder surface by the heat treatment at the temperature over the melting point of bismuth. The behavior of bismuth existing in the primary particle boundary caused a decrease in the elongation of the extruded brass. Drill cutting ability was improved for the extruded material with the continuous machining chip. The shape of the machining chip was affected by the combination of brass matrix and the distribution of bismuth.
Publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
Source Title	Transactions of JWRI
Volume (Issue)	38(1)
Page	25-30
Date of Issued	2009-09
Language	English
Handle URL	https://hdl.handle.net/11094/5502
DOI	https://doi.org/10.18910/5502
PISSN	03874508
NCID	AA00867058
Access Rights	open access
oaire:version	Version of Record
Category	紀要論文 Departmental Bulletin Paper
Category	Transactions of JWRI / Vol.38 No.1 (2009-09)

Resource Type	departmental bulletin paper
Local Type	Departmental Bulletin Paper
DCMI Type	Text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2009, 38(1), p. 25-30
DC.title	Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process
DC.creator	Imai, Hisashi
	Li, Shufeng
	Atsumi, Haruhiko
	Kosaka, Yoshiharu
	Kojima, Akimichi
	Umeda, Junko
	Kondoh, Katsuyoshi
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2009-09
DC.subject	Cu-41Zn Brass
	Lead-free
	Bismuth
	Machinability
	Machining chip
DCTERMS.abstract	In this paper, the uniform distribution process of bismuth particles in Cu-40Zn brass alloy by powder metallurgy (P/M) and machinable lead-free P/M brass with bismuth are described. Cu-40Zn Brass with bismuth powders produced by the rapid solidification processing were used as raw materials, having mean particle sizes of 150 μm. Three kinds of billets were prepared for the extrusion, namely green compact, sintered billets by using spark plasma sintering (SPS) and cast ingot. Bismuth dispersed in brass powder formed grains and dissolved into the powder surface by the heat treatment at the temperature over the melting point of bismuth. The behavior of bismuth existing in the primary particle boundary caused a decrease in the elongation of the extruded brass. Drill cutting ability was improved for the extruded material with the continuous machining chip. The shape of the machining chip was affected by the combination of brass matrix and the distribution of bismuth.
DC.identifier	10.18910/5502
DC.format	5502
citation_title	Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process
citation_author	Imai, Hisashi
	Li, Shufeng
	Atsumi, Haruhiko
	Kosaka, Yoshiharu
	Kojima, Akimichi
	Umeda, Junko
	Kondoh, Katsuyoshi
citation_publisher	大阪大学接合科学研究所
citation_language	English
citation_date	2009-09
citation_journal_title	Transactions of JWRI
citation_volume	38
citation_issue	1
citation_firstpage	25
citation_lastpage	30
citation_public_url	https://hdl.handle.net/11094/5502
citation_doi_detail	10.18910/5502
citation_doi	https://doi.org/10.18910/5502

Mechanical Properties and Machinability of Extruded Cu-40%Zn Brass Alloys with Bismuth via Powder Metallurgy Process

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