Influence of yttrium on microstructure and properties of Ti-23Al-25Nb alloy after heat treatment

Yu Feng Si; Yu Yong Chen; Zhi Guang Liu; Fan Tao Kong

doi:10.1016/S1003-6326(06)60313-0

Influence of yttrium on microstructure and properties of Ti-23Al-25Nb alloy after heat treatment

Yu Feng Si^*
, Yu Yong Chen
, Zhi Guang Liu
, Fan Tao Kong

^*Corresponding author for this work

Harbin Institute of Technology

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

7 Scopus citations

Abstract

The existence of yttrium in Ti-23Al-25Nb alloy and its influence on the microstructure after heat treatment of Ti-23Al-25Nb alloy were investigated using thermal analysis (DTA), EPMA, XRD and SEM. The heat treatment was determined based on DTA measurements. The compression tests at room temperature were performed on a Instron-569 universal tester. The results show that yttrium exists as the Y₂O₃ alloy. The addition of Y doesn't affect the characteristic phase transformation temperature. At lower quenching temperature, Y strengthens the XRD peaks of O phase by improving the decomposition of B₂ phase. Yttrium addition enhances the compression properties with the compression strength, yield strength and compression ratio increasing. The strengthening is attributed to the second phase strengthening of Y₂O₃ particles and the grain refinement.

Original language	English
Pages (from-to)	s849-s853
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	16
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/S1003-6326(06)60313-0
State	Published - Jun 2006
Externally published	Yes

Keywords

Mechanical property
Microstructure
Ti-23Al-25Nb alloy
Yttrium

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10.1016/S1003-6326(06)60313-0

Cite this

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title = "Influence of yttrium on microstructure and properties of Ti-23Al-25Nb alloy after heat treatment",

abstract = "The existence of yttrium in Ti-23Al-25Nb alloy and its influence on the microstructure after heat treatment of Ti-23Al-25Nb alloy were investigated using thermal analysis (DTA), EPMA, XRD and SEM. The heat treatment was determined based on DTA measurements. The compression tests at room temperature were performed on a Instron-569 universal tester. The results show that yttrium exists as the Y2O3 alloy. The addition of Y doesn't affect the characteristic phase transformation temperature. At lower quenching temperature, Y strengthens the XRD peaks of O phase by improving the decomposition of B2 phase. Yttrium addition enhances the compression properties with the compression strength, yield strength and compression ratio increasing. The strengthening is attributed to the second phase strengthening of Y2O3 particles and the grain refinement.",

keywords = "Mechanical property, Microstructure, Ti-23Al-25Nb alloy, Yttrium",

author = "Si, \{Yu Feng\} and Chen, \{Yu Yong\} and Liu, \{Zhi Guang\} and Kong, \{Fan Tao\}",

year = "2006",

month = jun,

doi = "10.1016/S1003-6326(06)60313-0",

language = "英语",

volume = "16",

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journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

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publisher = "Nonferrous Metals Society of China",

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}

TY - JOUR

T1 - Influence of yttrium on microstructure and properties of Ti-23Al-25Nb alloy after heat treatment

AU - Si, Yu Feng

AU - Chen, Yu Yong

AU - Liu, Zhi Guang

AU - Kong, Fan Tao

PY - 2006/6

Y1 - 2006/6

N2 - The existence of yttrium in Ti-23Al-25Nb alloy and its influence on the microstructure after heat treatment of Ti-23Al-25Nb alloy were investigated using thermal analysis (DTA), EPMA, XRD and SEM. The heat treatment was determined based on DTA measurements. The compression tests at room temperature were performed on a Instron-569 universal tester. The results show that yttrium exists as the Y2O3 alloy. The addition of Y doesn't affect the characteristic phase transformation temperature. At lower quenching temperature, Y strengthens the XRD peaks of O phase by improving the decomposition of B2 phase. Yttrium addition enhances the compression properties with the compression strength, yield strength and compression ratio increasing. The strengthening is attributed to the second phase strengthening of Y2O3 particles and the grain refinement.

AB - The existence of yttrium in Ti-23Al-25Nb alloy and its influence on the microstructure after heat treatment of Ti-23Al-25Nb alloy were investigated using thermal analysis (DTA), EPMA, XRD and SEM. The heat treatment was determined based on DTA measurements. The compression tests at room temperature were performed on a Instron-569 universal tester. The results show that yttrium exists as the Y2O3 alloy. The addition of Y doesn't affect the characteristic phase transformation temperature. At lower quenching temperature, Y strengthens the XRD peaks of O phase by improving the decomposition of B2 phase. Yttrium addition enhances the compression properties with the compression strength, yield strength and compression ratio increasing. The strengthening is attributed to the second phase strengthening of Y2O3 particles and the grain refinement.

KW - Mechanical property

KW - Microstructure

KW - Ti-23Al-25Nb alloy

KW - Yttrium

UR - https://www.scopus.com/pages/publications/33746804145

U2 - 10.1016/S1003-6326(06)60313-0

DO - 10.1016/S1003-6326(06)60313-0

M3 - 文章

AN - SCOPUS:33746804145

SN - 1003-6326

VL - 16

SP - s849-s853

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - SUPPL.

ER -

Influence of yttrium on microstructure and properties of Ti-23Al-25Nb alloy after heat treatment

Abstract

Keywords

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