Impact of alloy composition on one-dimensional glide of small dislocation loops in concentrated solid solution alloys

Shi, Shi; Bei, Hongbin; Robertson, Ian M.

doi:10.1016/j.msea.2017.05.049

Title: Impact of alloy composition on one-dimensional glide of small dislocation loops in concentrated solid solution alloys

Journal Article · Thu Jun 08 00:00:00 EDT 2017 · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing

DOI:https://doi.org/10.1016/j.msea.2017.05.049· OSTI ID:1366401

Shi, Shi ^[1]; Bei, Hongbin ^[2]; Robertson, Ian M. ^[1]

Univ. of Wisconsin, Madison, WI (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

One-dimensional glide of loops during ion irradiation at 773 K in a series of Ni-containing concentrated solid solution alloys has been observed directly during experiments conducted inside a transmission electron microscope. It was found that the frequency of the oscillatory motion of the loop, the loop glide velocity as well as the loop jump distance were dependent on the composition of the alloy and the size of the loop. Loop glide was most common for small loops and occurred more frequently in the less complex alloys, being highest in Ni, then NiCo, NiFe and NiCoFeCr. As a result, no measurable loop glide occurred in the NiCoCr, NiCoFeCrMn and NiCoFeCrPd alloys.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1366401

Alternate ID(s):: OSTI ID: 1550158

Journal Information:: Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 700, Issue C; ISSN 0921-5093

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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References (15)

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Cited By (3)

Delayed damage accumulation by athermal suppression of defect production in concentrated solid solution alloys Velişa, G.; Wendler, E.; Zhao, S. Taylor & Francis https://doi.org/10.6084/m9.figshare.5711458	text	January 2017
Delayed damage accumulation by athermal suppression of defect production in concentrated solid solution alloys [Supplementary Data] Velişa, G.; Wendler, E.; Zhao, S. Figshare-Supplementary information for journal article at DOI: 10.1080/21663831.2017.1410863, 1 .docx file (2.08 MB) https://doi.org/10.6084/m9.figshare.5711458.v1	preprint	December 2017
Delayed damage accumulation by athermal suppression of defect production in concentrated solid solution alloys Velişa, G.; Wendler, E.; Zhao, S. Materials Research Letters, Vol. 6, Issue 2 https://doi.org/10.1080/21663831.2017.1410863	journal	December 2017

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36 MATERIALS SCIENCE
loop glide
concentrated solid solution alloys
ion irradiation
transmission electron microscopy

Title: Impact of alloy composition on one-dimensional glide of small dislocation loops in concentrated solid solution alloys

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