Effect of hydrogenation on microstructure and phase transformation of Ti40 alloy

Xuemin Zhang; Yongqing Zhao; Weidong Zeng; Yongnan Chen; Fengying Zhang; Xiaodong Tian

Effect of hydrogenation on microstructure and phase transformation of Ti40 alloy

Xuemin Zhang, Yongqing Zhao, Weidong Zeng, Yongnan Chen, Fengying Zhang, Xiaodong Tian

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

Microstructure evolution and phase transformation of β phase Ti40 alloy before and after hydrogenation were investigated by XRD, OM, SEM, EDX and TEM. The results show that the amount of matrix β phase decreases while the modified β with the same bcc structure but different elemental composition increases gradually as the hydrogen content increases; the small particles of η phase appear around the grain boundaries when the hydrogen content reaches above 0.3%. The structure of η phase is fcc and the lattice constant is 0.4377 nm. The composition of η phase is Ti:V:Cr = 38.10:35.16:26.66. The hydrogenation and phase transformation of Ti40 alloy can be concluded as β→β_Hfor low hydrogen content (≤0.2wt%) and β→β_H+modified β+η for high hydrogen content (>0.3wt%).

源语言	英语
页（从-至）	2219-2222
页数	4
期刊	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
卷	41
期	12
出版状态	已出版 - 12月 2012

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title = "Effect of hydrogenation on microstructure and phase transformation of Ti40 alloy",

abstract = "Microstructure evolution and phase transformation of β phase Ti40 alloy before and after hydrogenation were investigated by XRD, OM, SEM, EDX and TEM. The results show that the amount of matrix β phase decreases while the modified β with the same bcc structure but different elemental composition increases gradually as the hydrogen content increases; the small particles of η phase appear around the grain boundaries when the hydrogen content reaches above 0.3%. The structure of η phase is fcc and the lattice constant is 0.4377 nm. The composition of η phase is Ti:V:Cr = 38.10:35.16:26.66. The hydrogenation and phase transformation of Ti40 alloy can be concluded as β→βHfor low hydrogen content (≤0.2wt%) and β→βH+modified β+η for high hydrogen content (>0.3wt%).",

keywords = "η phase, Hydrogenation, Modified β, Ti40 alloys",

author = "Xuemin Zhang and Yongqing Zhao and Weidong Zeng and Yongnan Chen and Fengying Zhang and Xiaodong Tian",

year = "2012",

month = dec,

language = "英语",

volume = "41",

pages = "2219--2222",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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TY - JOUR

T1 - Effect of hydrogenation on microstructure and phase transformation of Ti40 alloy

AU - Zhang, Xuemin

AU - Zhao, Yongqing

AU - Zeng, Weidong

AU - Chen, Yongnan

AU - Zhang, Fengying

AU - Tian, Xiaodong

PY - 2012/12

Y1 - 2012/12

N2 - Microstructure evolution and phase transformation of β phase Ti40 alloy before and after hydrogenation were investigated by XRD, OM, SEM, EDX and TEM. The results show that the amount of matrix β phase decreases while the modified β with the same bcc structure but different elemental composition increases gradually as the hydrogen content increases; the small particles of η phase appear around the grain boundaries when the hydrogen content reaches above 0.3%. The structure of η phase is fcc and the lattice constant is 0.4377 nm. The composition of η phase is Ti:V:Cr = 38.10:35.16:26.66. The hydrogenation and phase transformation of Ti40 alloy can be concluded as β→βHfor low hydrogen content (≤0.2wt%) and β→βH+modified β+η for high hydrogen content (>0.3wt%).

AB - Microstructure evolution and phase transformation of β phase Ti40 alloy before and after hydrogenation were investigated by XRD, OM, SEM, EDX and TEM. The results show that the amount of matrix β phase decreases while the modified β with the same bcc structure but different elemental composition increases gradually as the hydrogen content increases; the small particles of η phase appear around the grain boundaries when the hydrogen content reaches above 0.3%. The structure of η phase is fcc and the lattice constant is 0.4377 nm. The composition of η phase is Ti:V:Cr = 38.10:35.16:26.66. The hydrogenation and phase transformation of Ti40 alloy can be concluded as β→βHfor low hydrogen content (≤0.2wt%) and β→βH+modified β+η for high hydrogen content (>0.3wt%).

KW - η phase

KW - Hydrogenation

KW - Modified β

KW - Ti40 alloys

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SN - 1002-185X

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JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 12

ER -

Effect of hydrogenation on microstructure and phase transformation of Ti40 alloy

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