Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation

Yu R. Kolobov; G. P. Grabovetskaya; K. V. Ivanov; R. Z. Valiev; Y. T. Zhu

Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation

Yu R. Kolobov
, G. P. Grabovetskaya
, K. V. Ivanov
, R. Z. Valiev
, Y. T. Zhu

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

11 Citations (Scopus)

Abstract

We have studied the diffusion of Co along grain boundaries of ultrafme-grained (UFG) Ti as well as the creep behaviors of UFG Ti and Ti-6Al-4V alloy. It is found that the activation energy of grain boundary diffusion of Co in UFG Ti is smaller than that in coarse-grained Ti. The creep activation energies in UFG Ti and Ti-6Al-4V are also lower than those in their respective coarse-grained counterparts. We attribute the lower activation energy of grain boundary diffusion to the non-equilibrium grain boundary in UFG Ti. The difference in the creep activation energies of UFG and coarse-grained Ti and Ti-6Al-4V is explained by different contributions of grain boundary sliding to the overall deformation.

Original language	English
Title of host publication	Ultrafine Grained Materials III
Editors	Yuntian T. Zhu, Terence G. Langdon, Ruslan Z. Valiev, S. Lee Semiatin, Dong H. Shin, Terry C. Lowe
Publisher	Minerals, Metals & Materials Society
Pages	621-628
ISBN (Print)	0873395719, 9780873395717
Publication status	Published - Mar 2004
Externally published	Yes
Event	2004 TMS Annual Meeting: Ultrafine Grained Materials III - Charlotte, NC., United States Duration: 14 Mar 2004 → 18 Mar 2004 Conference number: 133rd https://www.tms.org/meetings/annual-04/annmtg04home.html https://www.tms.org/Meetings/Annual-04/TechProg/Annual04-techprog-full.pdf https://www.tib.eu/en/search/id/TIBKAT%3A385812965/Ultrafine-grained-materials-III-proceedings-of/

Conference

Conference	2004 TMS Annual Meeting
Place	United States
City	Charlotte, NC.
Period	14/03/04 → 18/03/04
Internet address	https://www.tms.org/meetings/annual-04/annmtg04home.html https://www.tms.org/Meetings/Annual-04/TechProg/Annual04-techprog-full.pdf https://www.tib.eu/en/search/id/TIBKAT%3A385812965/Ultrafine-grained-materials-III-proceedings-of/

Research Keywords

Creep
Diffusion
Non-equilibrium grain boundary
Ti
Ti-6al-4v

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Kolobov, Y. R., Grabovetskaya, G. P., Ivanov, K. V., Valiev, R. Z., & Zhu, Y. T. (2004). Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation. In Y. T. Zhu, T. G. Langdon, R. Z. Valiev, S. L. Semiatin, D. H. Shin, & T. C. Lowe (Eds.), Ultrafine Grained Materials III (pp. 621-628). Minerals, Metals & Materials Society.

Kolobov, Yu R. ; Grabovetskaya, G. P. ; Ivanov, K. V. et al. / Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation. Ultrafine Grained Materials III. editor / Yuntian T. Zhu ; Terence G. Langdon ; Ruslan Z. Valiev ; S. Lee Semiatin ; Dong H. Shin ; Terry C. Lowe. Minerals, Metals & Materials Society, 2004. pp. 621-628

@inproceedings{692ab291a76743498a31adcc1d8ce152,

title = "Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation",

abstract = "We have studied the diffusion of Co along grain boundaries of ultrafme-grained (UFG) Ti as well as the creep behaviors of UFG Ti and Ti-6Al-4V alloy. It is found that the activation energy of grain boundary diffusion of Co in UFG Ti is smaller than that in coarse-grained Ti. The creep activation energies in UFG Ti and Ti-6Al-4V are also lower than those in their respective coarse-grained counterparts. We attribute the lower activation energy of grain boundary diffusion to the non-equilibrium grain boundary in UFG Ti. The difference in the creep activation energies of UFG and coarse-grained Ti and Ti-6Al-4V is explained by different contributions of grain boundary sliding to the overall deformation.",

keywords = "Creep, Diffusion, Non-equilibrium grain boundary, Ti, Ti-6al-4v, Creep, Diffusion, Non-equilibrium grain boundary, Ti, Ti-6al-4v, Creep, Diffusion, Non-equilibrium grain boundary, Ti, Ti-6al-4v",

author = "Kolobov, \{Yu R.\} and Grabovetskaya, \{G. P.\} and Ivanov, \{K. V.\} and Valiev, \{R. Z.\} and Zhu, \{Y. T.\}",

year = "2004",

month = mar,

language = "English",

isbn = "0873395719",

pages = "621--628",

editor = "Zhu, \{Yuntian T. \} and Langdon, \{Terence G.\} and Valiev, \{Ruslan Z.\} and Semiatin, \{S. Lee\} and Shin, \{Dong H.\} and Lowe, \{Terry C.\}",

booktitle = "Ultrafine Grained Materials III",

publisher = "Minerals, Metals \& Materials Society",

address = "United States",

note = "2004 TMS Annual Meeting : Ultrafine Grained Materials III ; Conference date: 14-03-2004 Through 18-03-2004",

url = "https://www.tms.org/meetings/annual-04/annmtg04home.html, https://www.tms.org/Meetings/Annual-04/TechProg/Annual04-techprog-full.pdf, https://www.tib.eu/en/search/id/TIBKAT\%3A385812965/Ultrafine-grained-materials-III-proceedings-of/",

}

Kolobov, YR, Grabovetskaya, GP, Ivanov, KV, Valiev, RZ & Zhu, YT 2004, Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation. in YT Zhu, TG Langdon, RZ Valiev, SL Semiatin, DH Shin & TC Lowe (eds), Ultrafine Grained Materials III. Minerals, Metals & Materials Society, pp. 621-628, 2004 TMS Annual Meeting, Charlotte, NC., United States, 14/03/04.

Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation. / Kolobov, Yu R.; Grabovetskaya, G. P.; Ivanov, K. V. et al.
Ultrafine Grained Materials III. ed. / Yuntian T. Zhu; Terence G. Langdon; Ruslan Z. Valiev; S. Lee Semiatin; Dong H. Shin; Terry C. Lowe. Minerals, Metals & Materials Society, 2004. p. 621-628.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation

AU - Kolobov, Yu R.

AU - Grabovetskaya, G. P.

AU - Ivanov, K. V.

AU - Valiev, R. Z.

AU - Zhu, Y. T.

N1 - Conference code: 133rd

PY - 2004/3

Y1 - 2004/3

N2 - We have studied the diffusion of Co along grain boundaries of ultrafme-grained (UFG) Ti as well as the creep behaviors of UFG Ti and Ti-6Al-4V alloy. It is found that the activation energy of grain boundary diffusion of Co in UFG Ti is smaller than that in coarse-grained Ti. The creep activation energies in UFG Ti and Ti-6Al-4V are also lower than those in their respective coarse-grained counterparts. We attribute the lower activation energy of grain boundary diffusion to the non-equilibrium grain boundary in UFG Ti. The difference in the creep activation energies of UFG and coarse-grained Ti and Ti-6Al-4V is explained by different contributions of grain boundary sliding to the overall deformation.

AB - We have studied the diffusion of Co along grain boundaries of ultrafme-grained (UFG) Ti as well as the creep behaviors of UFG Ti and Ti-6Al-4V alloy. It is found that the activation energy of grain boundary diffusion of Co in UFG Ti is smaller than that in coarse-grained Ti. The creep activation energies in UFG Ti and Ti-6Al-4V are also lower than those in their respective coarse-grained counterparts. We attribute the lower activation energy of grain boundary diffusion to the non-equilibrium grain boundary in UFG Ti. The difference in the creep activation energies of UFG and coarse-grained Ti and Ti-6Al-4V is explained by different contributions of grain boundary sliding to the overall deformation.

KW - Creep

KW - Diffusion

KW - Non-equilibrium grain boundary

KW - Ti

KW - Ti-6al-4v

KW - Creep

KW - Diffusion

KW - Non-equilibrium grain boundary

KW - Ti

KW - Ti-6al-4v

KW - Creep

KW - Diffusion

KW - Non-equilibrium grain boundary

KW - Ti

KW - Ti-6al-4v

UR - https://www.scopus.com/pages/publications/3042698673

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-3042698673&origin=recordpage

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 0873395719

SN - 9780873395717

SP - 621

EP - 628

BT - Ultrafine Grained Materials III

A2 - Zhu, Yuntian T.

A2 - Langdon, Terence G.

A2 - Valiev, Ruslan Z.

A2 - Semiatin, S. Lee

A2 - Shin, Dong H.

A2 - Lowe, Terry C.

PB - Minerals, Metals & Materials Society

T2 - 2004 TMS Annual Meeting

Y2 - 14 March 2004 through 18 March 2004

ER -

Grain boundary diffusion and creep of UFG Ti and Ti-6Al-4V alloy processed by severe plastic deformation

Abstract

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Research Keywords

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