Effects of solution temperature on microstructures and properties of Ti-23Al-25Nb-0.36Y alloy

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

Effects of solution temperature on microstructures and properties of Ti-23Al-25Nb-0.36Y alloy

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

^*Corresponding author for this work

Harbin Institute of Technology

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

1 Scopus citations

Abstract

Characteristics of phase transformation of Ti-23Al-25Nb-0.36Y alloy were analyzed by DTA. Heat treatment conditions of these alloys were determined by the DTA results. The microstructures and phase composition of alloy were analyzed by means of SEM and XRD. Room temperature compression tests were tested by the Instron-5569 machine. The experimental results show that two endothermic peak appear in DTA curves of Ti-23Al-25Nb-0.36Y alloy. The micro-structure of Ti-23Al-25Nb-0.36Y alloy is B₂-phase solution treated at 1320°C, and O-phase and α₂ phase separate out along with decrease of the solution temperature. The alloy with O + B₂ phases gained by solution treated at 900°C has the best mechanical properties with the compressive strength of 1976.77 MPa, compressibility of 36.57% and yield strength of 789.91 MPa.

Original language	English
Pages (from-to)	59-62
Number of pages	4
Journal	Jinshu Rechuli/Heat Treatment of Metals
Volume	32
Issue number	5
State	Published - May 2007
Externally published	Yes

Keywords

Differential thermal analysis (DTA)
Microstructure
Properties
Solution temperature
Ti-23Al-25Nb-0.36Y alloy

Cite this

@article{fd72a07bb9274116bfcf0d5e109436a2,

title = "Effects of solution temperature on microstructures and properties of Ti-23Al-25Nb-0.36Y alloy",

abstract = "Characteristics of phase transformation of Ti-23Al-25Nb-0.36Y alloy were analyzed by DTA. Heat treatment conditions of these alloys were determined by the DTA results. The microstructures and phase composition of alloy were analyzed by means of SEM and XRD. Room temperature compression tests were tested by the Instron-5569 machine. The experimental results show that two endothermic peak appear in DTA curves of Ti-23Al-25Nb-0.36Y alloy. The micro-structure of Ti-23Al-25Nb-0.36Y alloy is B2-phase solution treated at 1320°C, and O-phase and α2 phase separate out along with decrease of the solution temperature. The alloy with O + B2 phases gained by solution treated at 900°C has the best mechanical properties with the compressive strength of 1976.77 MPa, compressibility of 36.57\% and yield strength of 789.91 MPa.",

keywords = "Differential thermal analysis (DTA), Microstructure, Properties, Solution temperature, Ti-23Al-25Nb-0.36Y alloy",

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

year = "2007",

month = may,

language = "英语",

volume = "32",

pages = "59--62",

journal = "Jinshu Rechuli/Heat Treatment of Metals",

issn = "0254-6051",

publisher = "Chinese Heat Treatment Society",

number = "5",

}

TY - JOUR

T1 - Effects of solution temperature on microstructures and properties of Ti-23Al-25Nb-0.36Y alloy

AU - Si, Yu Feng

AU - Kong, Fan Tao

AU - Chen, Yu Yong

AU - Liu, Zhi Guang

PY - 2007/5

Y1 - 2007/5

N2 - Characteristics of phase transformation of Ti-23Al-25Nb-0.36Y alloy were analyzed by DTA. Heat treatment conditions of these alloys were determined by the DTA results. The microstructures and phase composition of alloy were analyzed by means of SEM and XRD. Room temperature compression tests were tested by the Instron-5569 machine. The experimental results show that two endothermic peak appear in DTA curves of Ti-23Al-25Nb-0.36Y alloy. The micro-structure of Ti-23Al-25Nb-0.36Y alloy is B2-phase solution treated at 1320°C, and O-phase and α2 phase separate out along with decrease of the solution temperature. The alloy with O + B2 phases gained by solution treated at 900°C has the best mechanical properties with the compressive strength of 1976.77 MPa, compressibility of 36.57% and yield strength of 789.91 MPa.

AB - Characteristics of phase transformation of Ti-23Al-25Nb-0.36Y alloy were analyzed by DTA. Heat treatment conditions of these alloys were determined by the DTA results. The microstructures and phase composition of alloy were analyzed by means of SEM and XRD. Room temperature compression tests were tested by the Instron-5569 machine. The experimental results show that two endothermic peak appear in DTA curves of Ti-23Al-25Nb-0.36Y alloy. The micro-structure of Ti-23Al-25Nb-0.36Y alloy is B2-phase solution treated at 1320°C, and O-phase and α2 phase separate out along with decrease of the solution temperature. The alloy with O + B2 phases gained by solution treated at 900°C has the best mechanical properties with the compressive strength of 1976.77 MPa, compressibility of 36.57% and yield strength of 789.91 MPa.

KW - Differential thermal analysis (DTA)

KW - Microstructure

KW - Properties

KW - Solution temperature

KW - Ti-23Al-25Nb-0.36Y alloy

UR - https://www.scopus.com/pages/publications/34250027919

M3 - 文章

AN - SCOPUS:34250027919

SN - 0254-6051

VL - 32

SP - 59

EP - 62

JO - Jinshu Rechuli/Heat Treatment of Metals

JF - Jinshu Rechuli/Heat Treatment of Metals

IS - 5

ER -

Effects of solution temperature on microstructures and properties of Ti-23Al-25Nb-0.36Y alloy

Abstract

Keywords

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