Deformation-induced phase development in a cobalt-based superalloy during monotonic and cyclic deformation

M. L. Benson; P. K. Liaw; T. A. Saleh; H. Choo; D. W. Brown; M. R. Daymond; E. W. Huang; X. L. Wang; A. D. Stoica; R. A. Buchanan; D. L. Klarstrom

doi:10.1016/j.physb.2006.05.262

Deformation-induced phase development in a cobalt-based superalloy during monotonic and cyclic deformation

M. L. Benson
, P. K. Liaw
, T. A. Saleh
, H. Choo
, D. W. Brown
, M. R. Daymond
, E. W. Huang
, X. L. Wang
, A. D. Stoica
, R. A. Buchanan
, D. L. Klarstrom

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

ULTIMET^® alloy is a metastable face-centered-cubic (FCC) material that undergoes a deformation-induced phase transformation to a hexagonal-close-packed (HCP) phase. In-situ neutron-diffraction measurements were made at room temperature to study the phase transformation during monotonic tensile deformation to a total strain of 16% (890 MPa) and also during strain-controlled cyclic deformation with a total strain range of Δε=2.5% up to 500 fatigue cycles. The HCP phase developed with increasing strain during the monotonic-loading experiment, while, during the fatigue deformation, the HCP phase continuously developed with each loading cycle. Transmission electron microscopy was also performed on monotonically loaded specimens in order to complement the neutron-diffraction results.

Original language	English
Pages (from-to)	523-525
Journal	Physica B: Condensed Matter
Volume	385-386 I
DOIs	https://doi.org/10.1016/j.physb.2006.05.262
Publication status	Published - 27 Nov 2006
Externally published	Yes

Research Keywords

Cobalt-based superalloy
In-situ neutron diffraction
Stress-induced phase transformation

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10.1016/j.physb.2006.05.262

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@article{bfcb02ea34b34f9395c607f4f3cf0b39,

title = "Deformation-induced phase development in a cobalt-based superalloy during monotonic and cyclic deformation",

abstract = "ULTIMET{\textregistered} alloy is a metastable face-centered-cubic (FCC) material that undergoes a deformation-induced phase transformation to a hexagonal-close-packed (HCP) phase. In-situ neutron-diffraction measurements were made at room temperature to study the phase transformation during monotonic tensile deformation to a total strain of 16\% (890 MPa) and also during strain-controlled cyclic deformation with a total strain range of Δε=2.5\% up to 500 fatigue cycles. The HCP phase developed with increasing strain during the monotonic-loading experiment, while, during the fatigue deformation, the HCP phase continuously developed with each loading cycle. Transmission electron microscopy was also performed on monotonically loaded specimens in order to complement the neutron-diffraction results.",

keywords = "Cobalt-based superalloy, In-situ neutron diffraction, Stress-induced phase transformation",

author = "Benson, \{M. L.\} and Liaw, \{P. K.\} and Saleh, \{T. A.\} and H. Choo and Brown, \{D. W.\} and Daymond, \{M. R.\} and Huang, \{E. W.\} and Wang, \{X. L.\} and Stoica, \{A. D.\} and Buchanan, \{R. A.\} and Klarstrom, \{D. L.\}",

year = "2006",

month = nov,

day = "27",

doi = "10.1016/j.physb.2006.05.262",

language = "English",

volume = "385-386 I",

pages = "523--525",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Deformation-induced phase development in a cobalt-based superalloy during monotonic and cyclic deformation

AU - Benson, M. L.

AU - Liaw, P. K.

AU - Saleh, T. A.

AU - Choo, H.

AU - Brown, D. W.

AU - Daymond, M. R.

AU - Huang, E. W.

AU - Wang, X. L.

AU - Stoica, A. D.

AU - Buchanan, R. A.

AU - Klarstrom, D. L.

PY - 2006/11/27

Y1 - 2006/11/27

N2 - ULTIMET® alloy is a metastable face-centered-cubic (FCC) material that undergoes a deformation-induced phase transformation to a hexagonal-close-packed (HCP) phase. In-situ neutron-diffraction measurements were made at room temperature to study the phase transformation during monotonic tensile deformation to a total strain of 16% (890 MPa) and also during strain-controlled cyclic deformation with a total strain range of Δε=2.5% up to 500 fatigue cycles. The HCP phase developed with increasing strain during the monotonic-loading experiment, while, during the fatigue deformation, the HCP phase continuously developed with each loading cycle. Transmission electron microscopy was also performed on monotonically loaded specimens in order to complement the neutron-diffraction results.

AB - ULTIMET® alloy is a metastable face-centered-cubic (FCC) material that undergoes a deformation-induced phase transformation to a hexagonal-close-packed (HCP) phase. In-situ neutron-diffraction measurements were made at room temperature to study the phase transformation during monotonic tensile deformation to a total strain of 16% (890 MPa) and also during strain-controlled cyclic deformation with a total strain range of Δε=2.5% up to 500 fatigue cycles. The HCP phase developed with increasing strain during the monotonic-loading experiment, while, during the fatigue deformation, the HCP phase continuously developed with each loading cycle. Transmission electron microscopy was also performed on monotonically loaded specimens in order to complement the neutron-diffraction results.

KW - Cobalt-based superalloy

KW - In-situ neutron diffraction

KW - Stress-induced phase transformation

UR - https://www.scopus.com/pages/publications/33751351922

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33751351922&origin=recordpage

U2 - 10.1016/j.physb.2006.05.262

DO - 10.1016/j.physb.2006.05.262

M3 - RGC 21 - Publication in refereed journal

SN - 0921-4526

VL - 385-386 I

SP - 523

EP - 525

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Deformation-induced phase development in a cobalt-based superalloy during monotonic and cyclic deformation

Abstract

Research Keywords

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