Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy

X. Gong; R. R. Chen; H. Z. Fang; H. S. Ding; J. J. Guo; Y. Q. Su; H. Z. Fu

doi:10.1016/j.corsci.2017.12.013

Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy

X. Gong
, R. R. Chen^*
, H. Z. Fang
, H. S. Ding
, J. J. Guo
, Y. Q. Su
, H. Z. Fu

^*Corresponding author for this work

Harbin Institute of Technology

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

89 Scopus citations

Abstract

Isothermal oxidation was conducted at 900 °C to investigate the synergistic effect of B and Y on the oxidation behavior of Ti44Al6Nb1Cr2 V alloy. The results indicated that Ti44Al6Nb1Cr2V0.15Y0.1 B possessed superior oxidation resistance. B and Y refined the crystalline particles size and reduced the oxygen activity. As a results, the formation of TiO₂ and vanadium oxides was suppressed. The reduction of dissolved oxygen in the alloy promoted the selective oxidation of Al. Meanwhile, oxide pegs were formed at the interface of oxide scale and Ti44Al6Nb1Cr2V0.15Y0.1 B alloy. Therefore, the spalling resistance of the oxide scale was enhanced by adding B and Y.

Original language	English
Pages (from-to)	376-385
Number of pages	10
Journal	Corrosion Science
Volume	131
DOIs	https://doi.org/10.1016/j.corsci.2017.12.013
State	Published - Feb 2018
Externally published	Yes

Keywords

Intermetallics
Oxidation
SEM
Selective oxidation
XRD

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10.1016/j.corsci.2017.12.013

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@article{6b11e767fefc4025a03645c3de9c1e36,

title = "Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy",

abstract = "Isothermal oxidation was conducted at 900 °C to investigate the synergistic effect of B and Y on the oxidation behavior of Ti44Al6Nb1Cr2 V alloy. The results indicated that Ti44Al6Nb1Cr2V0.15Y0.1 B possessed superior oxidation resistance. B and Y refined the crystalline particles size and reduced the oxygen activity. As a results, the formation of TiO2 and vanadium oxides was suppressed. The reduction of dissolved oxygen in the alloy promoted the selective oxidation of Al. Meanwhile, oxide pegs were formed at the interface of oxide scale and Ti44Al6Nb1Cr2V0.15Y0.1 B alloy. Therefore, the spalling resistance of the oxide scale was enhanced by adding B and Y.",

keywords = "Intermetallics, Oxidation, SEM, Selective oxidation, XRD",

author = "X. Gong and Chen, \{R. R.\} and Fang, \{H. Z.\} and Ding, \{H. S.\} and Guo, \{J. J.\} and Su, \{Y. Q.\} and Fu, \{H. Z.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

month = feb,

doi = "10.1016/j.corsci.2017.12.013",

language = "英语",

volume = "131",

pages = "376--385",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy

AU - Gong, X.

AU - Chen, R. R.

AU - Fang, H. Z.

AU - Ding, H. S.

AU - Guo, J. J.

AU - Su, Y. Q.

AU - Fu, H. Z.

PY - 2018/2

Y1 - 2018/2

N2 - Isothermal oxidation was conducted at 900 °C to investigate the synergistic effect of B and Y on the oxidation behavior of Ti44Al6Nb1Cr2 V alloy. The results indicated that Ti44Al6Nb1Cr2V0.15Y0.1 B possessed superior oxidation resistance. B and Y refined the crystalline particles size and reduced the oxygen activity. As a results, the formation of TiO2 and vanadium oxides was suppressed. The reduction of dissolved oxygen in the alloy promoted the selective oxidation of Al. Meanwhile, oxide pegs were formed at the interface of oxide scale and Ti44Al6Nb1Cr2V0.15Y0.1 B alloy. Therefore, the spalling resistance of the oxide scale was enhanced by adding B and Y.

AB - Isothermal oxidation was conducted at 900 °C to investigate the synergistic effect of B and Y on the oxidation behavior of Ti44Al6Nb1Cr2 V alloy. The results indicated that Ti44Al6Nb1Cr2V0.15Y0.1 B possessed superior oxidation resistance. B and Y refined the crystalline particles size and reduced the oxygen activity. As a results, the formation of TiO2 and vanadium oxides was suppressed. The reduction of dissolved oxygen in the alloy promoted the selective oxidation of Al. Meanwhile, oxide pegs were formed at the interface of oxide scale and Ti44Al6Nb1Cr2V0.15Y0.1 B alloy. Therefore, the spalling resistance of the oxide scale was enhanced by adding B and Y.

KW - Intermetallics

KW - Oxidation

KW - SEM

KW - Selective oxidation

KW - XRD

UR - https://www.scopus.com/pages/publications/85038638852

U2 - 10.1016/j.corsci.2017.12.013

DO - 10.1016/j.corsci.2017.12.013

M3 - 文章

AN - SCOPUS:85038638852

SN - 0010-938X

VL - 131

SP - 376

EP - 385

JO - Corrosion Science

JF - Corrosion Science

ER -

Synergistic effect of B and Y on the isothermal oxidation behavior of TiAl-Nb-Cr-V alloy

Abstract

Keywords

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