The Effect of Solid Solutionizing Ti Element on Microstructural and Mechanical Properties of Extruded Cu-40Zn-Ti Ternary Alloy

Atsumi, Haruhiko; Imai, Hisashi; Li, Shufeng; Kondoh, Katsuyoshi; Kousaka, Yoshiharu; Kojima, Akimichi

doi:https://doi.org/10.18910/10014

The Effect of Solid Solutionizing Ti Element on Microstructural and Mechanical Properties of Extruded Cu-40Zn-Ti Ternary Alloy

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

Transactions of JWRI, 2011, 40(1), 67-71

アクセス数:856件（2025-09-01 14:53 集計）

固定URL: https://doi.org/10.18910/10014

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タイトル	The Effect of Solid Solutionizing Ti Element on Microstructural and Mechanical Properties of Extruded Cu-40Zn-Ti Ternary Alloy
著者	著者名 Atsumi, Haruhiko
	NRID 1000030452379 1000030452379 著者名 Imai, Hisashi
	著者名 Li, Shufeng
	NRID 1000050345138 1000050345138 researchmap permalink kondoh kondoh Scopus Author ID 9942942300 9942942300 著者名 Kondoh, Katsuyoshi
	著者名 Kousaka, Yoshiharu
	著者名 Kojima, Akimichi
キーワード等	Brass
	Cu-40Zn
	Titanium
	Cu-40Zn-Ti
	High strength
抄録	The effects of solid solutionizing treatment and following hot extrusion on microstructural and mechanical properties of the extruded brass alloy (Cu-40Zn) with a small addition of titanium (Ti) were investigated in the present study. Cu-40Zn with 0.5 mass% Ti (Cu-40Zn-0.5Ti) alloy ingot was prepared by a casting process. This cast alloy consisted of α-β duplex phase structures. Furthermore, Cu-40Zn-0.5Ti alloy contained coarse Cu₂TiZn intermetallic compounds (IMCs) with 10-30 μm diameters. The IMCs were completely soluble in the both α and β phases by heat treatment at 973 K for 15 min. Cu-40Zn-0.5Ti alloy was pre-heated at 973 K for 15 min in solid solutionizing, and immediately extruded to fabricate a rod specimen of 7 mm diameter. The extruded specimen contained fine precipitates, having a mean particle sizes of 0.5 μm diameter, which were dispersed in both phases, not coarse Cu₂TiZn IMCs. In particular, since the grain growth of the α phase was inhibited by the pinning effect of the above fine precipitates at the grain boundaries, α phase consisted of fine grains. The extruded specimen consisted of remarkably fine and uniform α-β phases with an average grain size of 2.14 μm. The tensile properties of the extruded specimens showed an average value of yield strength: 304 MPa, ultimate tensile strength: 543 MPa, and 44 % elongation. The extruded specimens revealed suitable strengths and good ductility. The high strengthening mechanism of the wrought brass alloy was mainly due to the grain refinement of α and β phases by the fine precipitates derived from solid solutionizing Ti elements in the matrix.
出版者	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
収録物名	Transactions of JWRI
巻(号)	40(1)
ページ	67-71
刊行年月	2011-06
言語	英語
ハンドルURL	https://hdl.handle.net/11094/10014
DOI	https://doi.org/10.18910/10014
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.40 No.1 (2011-06)

資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2011, 40(1), p. 67-71
DC.title	The Effect of Solid Solutionizing Ti Element on Microstructural and Mechanical Properties of Extruded Cu-40Zn-Ti Ternary Alloy
DC.creator	Atsumi, Haruhiko
	Imai, Hisashi
	Li, Shufeng
	Kondoh, Katsuyoshi
	Kousaka, Yoshiharu
	Kojima, Akimichi
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	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2011-06
DC.subject	Brass
	Cu-40Zn
	Titanium
	Cu-40Zn-Ti
	High strength
DCTERMS.abstract	The effects of solid solutionizing treatment and following hot extrusion on microstructural and mechanical properties of the extruded brass alloy (Cu-40Zn) with a small addition of titanium (Ti) were investigated in the present study. Cu-40Zn with 0.5 mass% Ti (Cu-40Zn-0.5Ti) alloy ingot was prepared by a casting process. This cast alloy consisted of α-β duplex phase structures. Furthermore, Cu-40Zn-0.5Ti alloy contained coarse Cu₂TiZn intermetallic compounds (IMCs) with 10-30 μm diameters. The IMCs were completely soluble in the both α and β phases by heat treatment at 973 K for 15 min. Cu-40Zn-0.5Ti alloy was pre-heated at 973 K for 15 min in solid solutionizing, and immediately extruded to fabricate a rod specimen of 7 mm diameter. The extruded specimen contained fine precipitates, having a mean particle sizes of 0.5 μm diameter, which were dispersed in both phases, not coarse Cu₂TiZn IMCs. In particular, since the grain growth of the α phase was inhibited by the pinning effect of the above fine precipitates at the grain boundaries, α phase consisted of fine grains. The extruded specimen consisted of remarkably fine and uniform α-β phases with an average grain size of 2.14 μm. The tensile properties of the extruded specimens showed an average value of yield strength: 304 MPa, ultimate tensile strength: 543 MPa, and 44 % elongation. The extruded specimens revealed suitable strengths and good ductility. The high strengthening mechanism of the wrought brass alloy was mainly due to the grain refinement of α and β phases by the fine precipitates derived from solid solutionizing Ti elements in the matrix.
DC.identifier	10.18910/10014
DC.format	10014
citation_title	The Effect of Solid Solutionizing Ti Element on Microstructural and Mechanical Properties of Extruded Cu-40Zn-Ti Ternary Alloy
citation_author	Atsumi, Haruhiko
	Imai, Hisashi
	Li, Shufeng
	Kondoh, Katsuyoshi
	Kousaka, Yoshiharu
	Kojima, Akimichi
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2011-06
citation_journal_title	Transactions of JWRI
citation_volume	40
citation_issue	1
citation_firstpage	67
citation_lastpage	71
citation_public_url	https://hdl.handle.net/11094/10014
citation_doi_detail	10.18910/10014
citation_doi	https://doi.org/10.18910/10014

The Effect of Solid Solutionizing Ti Element on Microstructural and Mechanical Properties of Extruded Cu-40Zn-Ti Ternary Alloy

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