Relationship between forming process and microstructure-properties of Ti-22Al-25Nb alloy ring

Wei Tian; Yan Zhong; Xiao Bo Liang; Jian Wei Zhang; Wei Dong Zeng

Relationship between forming process and microstructure-properties of Ti-22Al-25Nb alloy ring

Wei Tian, Yan Zhong, Xiao Bo Liang, Jian Wei Zhang, Wei Dong Zeng

School of Materials Sience and Engineering

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

10 Scopus citations

Abstract

The forming process of Ti-22Al-25Nb alloy was studied and the process-microstructure-property relationships were investigated. The experimental results indicate that increasing of deformation times of Ti-22Al-25Nb alloy bars can improve the uniformity of microstructure and refine the grain size, and to enhance ductility of bars at room temperature. The dual-microstructure and lamellar microstructure can be obtained via rolled in α₂+B₂+O region and α₂+B₂ region respectively. The tensile strength of the alloy after forming process is higher than 1100 MPa and the elongation is higher than 6.5% for both two microstructure. The dual-microstructure of the alloy has higher strength, but poor in ductility compared with lamellar microstructure. Based on the experimental results, the Ti-22Al-25Nb alloy produced for application, the deformation times of bars should be much than 8 and the ring should be rolled in α₂+B₂ region.

Original language	English
Pages (from-to)	49-52
Number of pages	4
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	35
Issue number	10
State	Published - 25 Oct 2014

Keywords

Forming technology
Microstructure
Tensile property
TiAlNb based alloy

Cite this

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title = "Relationship between forming process and microstructure-properties of Ti-22Al-25Nb alloy ring",

abstract = "The forming process of Ti-22Al-25Nb alloy was studied and the process-microstructure-property relationships were investigated. The experimental results indicate that increasing of deformation times of Ti-22Al-25Nb alloy bars can improve the uniformity of microstructure and refine the grain size, and to enhance ductility of bars at room temperature. The dual-microstructure and lamellar microstructure can be obtained via rolled in α2+B2+O region and α2+B2 region respectively. The tensile strength of the alloy after forming process is higher than 1100 MPa and the elongation is higher than 6.5% for both two microstructure. The dual-microstructure of the alloy has higher strength, but poor in ductility compared with lamellar microstructure. Based on the experimental results, the Ti-22Al-25Nb alloy produced for application, the deformation times of bars should be much than 8 and the ring should be rolled in α2+B2 region.",

keywords = "Forming technology, Microstructure, Tensile property, TiAlNb based alloy",

author = "Wei Tian and Yan Zhong and Liang, {Xiao Bo} and Zhang, {Jian Wei} and Zeng, {Wei Dong}",

year = "2014",

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

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T1 - Relationship between forming process and microstructure-properties of Ti-22Al-25Nb alloy ring

AU - Tian, Wei

AU - Zhong, Yan

AU - Liang, Xiao Bo

AU - Zhang, Jian Wei

AU - Zeng, Wei Dong

PY - 2014/10/25

Y1 - 2014/10/25

N2 - The forming process of Ti-22Al-25Nb alloy was studied and the process-microstructure-property relationships were investigated. The experimental results indicate that increasing of deformation times of Ti-22Al-25Nb alloy bars can improve the uniformity of microstructure and refine the grain size, and to enhance ductility of bars at room temperature. The dual-microstructure and lamellar microstructure can be obtained via rolled in α2+B2+O region and α2+B2 region respectively. The tensile strength of the alloy after forming process is higher than 1100 MPa and the elongation is higher than 6.5% for both two microstructure. The dual-microstructure of the alloy has higher strength, but poor in ductility compared with lamellar microstructure. Based on the experimental results, the Ti-22Al-25Nb alloy produced for application, the deformation times of bars should be much than 8 and the ring should be rolled in α2+B2 region.

AB - The forming process of Ti-22Al-25Nb alloy was studied and the process-microstructure-property relationships were investigated. The experimental results indicate that increasing of deformation times of Ti-22Al-25Nb alloy bars can improve the uniformity of microstructure and refine the grain size, and to enhance ductility of bars at room temperature. The dual-microstructure and lamellar microstructure can be obtained via rolled in α2+B2+O region and α2+B2 region respectively. The tensile strength of the alloy after forming process is higher than 1100 MPa and the elongation is higher than 6.5% for both two microstructure. The dual-microstructure of the alloy has higher strength, but poor in ductility compared with lamellar microstructure. Based on the experimental results, the Ti-22Al-25Nb alloy produced for application, the deformation times of bars should be much than 8 and the ring should be rolled in α2+B2 region.

KW - Forming technology

KW - Microstructure

KW - Tensile property

KW - TiAlNb based alloy

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JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 10

ER -

Relationship between forming process and microstructure-properties of Ti-22Al-25Nb alloy ring

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Keywords

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