Duplex precipitates and their effects on the room-temperature fracture behaviour of a NiAl-strengthened ferritic alloy

Sun, Zhiqian; Song, Gian; Ilavsky, Jan; Liaw, Peter K.

doi:10.1080/21663831.2015.1021492

Title: Duplex precipitates and their effects on the room-temperature fracture behaviour of a NiAl-strengthened ferritic alloy

Journal Article · Mon Mar 23 00:00:00 EDT 2015 · Materials Research Letters

DOI:https://doi.org/10.1080/21663831.2015.1021492· OSTI ID:1221541

Sun, Zhiqian ^[1]; Song, Gian ^[1]; Ilavsky, Jan ^[2]; Liaw, Peter K. ^[1]

Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engneering.
Argonne National Lab. (ANL), Argonne, IL (United States)

Duplex precipitates are presented in a NiAl-strengthened ferritic alloy. They were characterized by the ultra-small angle X-ray scattering and transmission electron microscope. Fine cooling precipitates with the size of several to tens of nanometres harden the matrix considerably at room temperature. The cracks will likely to initiate from precipitates, and coalesce and propagate quickly through the matrix due to the excessive hardening effect of cooling precipitates, which lead to the premature fracture of NiAl-strengthened ferritic alloys.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Tennessee, Knoxville, TN (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; NT0008089; FE0005868; NSF/CHE-1346572

OSTI ID:: 1221541

Alternate ID(s):: OSTI ID: 1221805

Journal Information:: Materials Research Letters, Vol. 3, Issue 3; ISSN 2166-3831

Publisher:: Taylor and FrancisCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 28 works

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Cited By (4)

Atom-probe study of Cu and NiAl nanoscale precipitation and interfacial segregation in a nanoparticle-strengthened steel Jiao, Z. B.; Luan, J. H.; Guo, W. Materials Research Letters, Vol. 5, Issue 8 https://doi.org/10.1080/21663831.2017.1364675	journal	August 2017
Precipitation kinetics and mechanical properties of nanostructured steels with Mo additions Xu, S. S.; Liu, Y. W.; Zhang, Y. Materials Research Letters, Vol. 8, Issue 5 https://doi.org/10.1080/21663831.2020.1734976	journal	March 2020
Precipitation kinetics and mechanical properties of nanostructured steels with Mo additions Xu, S. S.; Liu, Y. W.; Zhang, Y. Taylor & Francis https://doi.org/10.6084/m9.figshare.11925237	text	January 2020
Precipitation kinetics and mechanical properties of nanostructured steels with Mo additions Xu, S. S.; Liu, Y. W.; Zhang, Y. Taylor & Francis https://doi.org/10.6084/m9.figshare.11925237.v1	text	January 2020

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