Microstructure and mechanical properties of powder metallurgy Ti-Fe alloys

Qing Yu Meng; Xin Lu; Wei Xu; Ling Ling Zhi; Jun Chen; Xuan Hui Qu

Microstructure and mechanical properties of powder metallurgy Ti-Fe alloys

Qing Yu Meng, Xin Lu, Wei Xu, Ling Ling Zhi, Jun Chen, Xuan Hui Qu

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

Abstract

Ti-(2-20)Fe alloys (with 2%, 5%, 10%, 15% or 20%Fe) were fabricated by powder metallurgy technique using elemental powders as raw materials. The effects of sintering temperature and Fe content on microstructure and mechanical properties of the alloys were studied. The results show that the Ti-xFe alloys with high-density (about 98%) and uniform microstructure can be produced at the sintering temperature range of 1100-1300℃. With the increasing of Fe content, the sintering temperature for densification significantly decreases, while the grain size of β phase decreases and the α lamellars become less and thinner. As Fe content is up to 20%, the alloy samples consist of single β grains. In comparison, the Ti-15Fe alloy sintered at 1150℃ exhibits the superior mechanical properties with hardness of 43.9 HRC, elastic modulus of 64.6 GPa, compressive strength of 2702 MPa, and compression rate of 32.7%.

Original language	English
Pages (from-to)	36-40
Number of pages	5
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	37
Issue number	8
Publication status	Published - 2016 Aug 25
Externally published	Yes

Keywords

Elastic modulus
Microstructure
Powder metallurgy
Ti-Fe alloy

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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title = "Microstructure and mechanical properties of powder metallurgy Ti-Fe alloys",

abstract = "Ti-(2-20)Fe alloys (with 2%, 5%, 10%, 15% or 20%Fe) were fabricated by powder metallurgy technique using elemental powders as raw materials. The effects of sintering temperature and Fe content on microstructure and mechanical properties of the alloys were studied. The results show that the Ti-xFe alloys with high-density (about 98%) and uniform microstructure can be produced at the sintering temperature range of 1100-1300℃. With the increasing of Fe content, the sintering temperature for densification significantly decreases, while the grain size of β phase decreases and the α lamellars become less and thinner. As Fe content is up to 20%, the alloy samples consist of single β grains. In comparison, the Ti-15Fe alloy sintered at 1150℃ exhibits the superior mechanical properties with hardness of 43.9 HRC, elastic modulus of 64.6 GPa, compressive strength of 2702 MPa, and compression rate of 32.7%.",

keywords = "Elastic modulus, Microstructure, Powder metallurgy, Ti-Fe alloy",

author = "Meng, {Qing Yu} and Xin Lu and Wei Xu and Zhi, {Ling Ling} and Jun Chen and Qu, {Xuan Hui}",

year = "2016",

month = aug,

day = "25",

language = "English",

volume = "37",

pages = "36--40",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

issn = "1009-6264",

publisher = "Editorial Office of Transactions of Materials and Heat Treatment",

number = "8",

}

TY - JOUR

T1 - Microstructure and mechanical properties of powder metallurgy Ti-Fe alloys

AU - Meng, Qing Yu

AU - Lu, Xin

AU - Xu, Wei

AU - Zhi, Ling Ling

AU - Chen, Jun

AU - Qu, Xuan Hui

PY - 2016/8/25

Y1 - 2016/8/25

N2 - Ti-(2-20)Fe alloys (with 2%, 5%, 10%, 15% or 20%Fe) were fabricated by powder metallurgy technique using elemental powders as raw materials. The effects of sintering temperature and Fe content on microstructure and mechanical properties of the alloys were studied. The results show that the Ti-xFe alloys with high-density (about 98%) and uniform microstructure can be produced at the sintering temperature range of 1100-1300℃. With the increasing of Fe content, the sintering temperature for densification significantly decreases, while the grain size of β phase decreases and the α lamellars become less and thinner. As Fe content is up to 20%, the alloy samples consist of single β grains. In comparison, the Ti-15Fe alloy sintered at 1150℃ exhibits the superior mechanical properties with hardness of 43.9 HRC, elastic modulus of 64.6 GPa, compressive strength of 2702 MPa, and compression rate of 32.7%.

AB - Ti-(2-20)Fe alloys (with 2%, 5%, 10%, 15% or 20%Fe) were fabricated by powder metallurgy technique using elemental powders as raw materials. The effects of sintering temperature and Fe content on microstructure and mechanical properties of the alloys were studied. The results show that the Ti-xFe alloys with high-density (about 98%) and uniform microstructure can be produced at the sintering temperature range of 1100-1300℃. With the increasing of Fe content, the sintering temperature for densification significantly decreases, while the grain size of β phase decreases and the α lamellars become less and thinner. As Fe content is up to 20%, the alloy samples consist of single β grains. In comparison, the Ti-15Fe alloy sintered at 1150℃ exhibits the superior mechanical properties with hardness of 43.9 HRC, elastic modulus of 64.6 GPa, compressive strength of 2702 MPa, and compression rate of 32.7%.

KW - Elastic modulus

KW - Microstructure

KW - Powder metallurgy

KW - Ti-Fe alloy

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