The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications

Fei Teng; Li Jen Yu; Octav Ciuca; Emmanuelle Marquis; Grace Burke; Julie D. Tucker

doi:10.1007/978-3-030-04639-2_16

The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications

Fei Teng
, Li Jen Yu
, Octav Ciuca
, Emmanuelle Marquis
, Grace Burke
, Julie D. Tucker

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Mechanical property degradation due to isothermal ageing is of potential concern for alloys based on the Ni–Cr binary system, such as Alloys 625 and 690. The disorder-order phase transformation, which is the primary source of embrittlement, has been studied in Ni–Cr model alloys by experimental approaches. Model alloys with different stoichiometries have been isothermally aged up to 5000 h at three temperatures (373, 418, and 475 °C) and characterized via nano-indentation, atom probe tomography, and transmission electron microscopy. Results show that off-stoichiometry alloys exhibit ordering but at a slower rate than stoichiometric (Ni/Cr = 2.0) alloy.

Original language	English
Title of host publication	Minerals, Metals and Materials Series
Publisher	Springer International Publishing
Pages	251-259
Number of pages	9
ISBN (Print)	9783030046385, 9783030046392, 9783319515403, 9783319651354, 9783319728520, 9783319950211
DOIs	https://doi.org/10.1007/978-3-030-04639-2_16
State	Published - 2019
Externally published	Yes
Event	18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 - Boston, United States Duration: Aug 18 2019 → Aug 22 2019

Publication series

Name	Minerals, Metals and Materials Series
ISSN (Print)	2367-1181
ISSN (Electronic)	2367-1696

Conference

Conference	18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019
Country/Territory	United States
City	Boston
Period	08/18/19 → 08/22/19

Keywords

Model alloys
Ni-based
Ordering
Stoichiometry

Access to Document

10.1007/978-3-030-04639-2_16

Cite this

@inproceedings{ffa7d4c662f74df6a987ff4228be5d78,

title = "The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications",

abstract = "Mechanical property degradation due to isothermal ageing is of potential concern for alloys based on the Ni–Cr binary system, such as Alloys 625 and 690. The disorder-order phase transformation, which is the primary source of embrittlement, has been studied in Ni–Cr model alloys by experimental approaches. Model alloys with different stoichiometries have been isothermally aged up to 5000 h at three temperatures (373, 418, and 475 °C) and characterized via nano-indentation, atom probe tomography, and transmission electron microscopy. Results show that off-stoichiometry alloys exhibit ordering but at a slower rate than stoichiometric (Ni/Cr = 2.0) alloy.",

keywords = "Model alloys, Ni-based, Ordering, Stoichiometry",

author = "Fei Teng and Yu, \{Li Jen\} and Octav Ciuca and Emmanuelle Marquis and Grace Burke and Tucker, \{Julie D.\}",

note = "Publisher Copyright: {\textcopyright} 2019, The Minerals, Metals \& Materials Society.; 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019 ; Conference date: 18-08-2019 Through 22-08-2019",

year = "2019",

doi = "10.1007/978-3-030-04639-2\_16",

language = "English",

isbn = "9783030046385",

series = "Minerals, Metals and Materials Series",

publisher = "Springer International Publishing",

pages = "251--259",

booktitle = "Minerals, Metals and Materials Series",

}

Teng, F, Yu, LJ, Ciuca, O, Marquis, E, Burke, G & Tucker, JD 2019, The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications. in Minerals, Metals and Materials Series. Minerals, Metals and Materials Series, Springer International Publishing, pp. 251-259, 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019, Boston, United States, 08/18/19. https://doi.org/10.1007/978-3-030-04639-2_16

The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications. / Teng, Fei; Yu, Li Jen; Ciuca, Octav et al.
Minerals, Metals and Materials Series. Springer International Publishing, 2019. p. 251-259 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications

AU - Teng, Fei

AU - Yu, Li Jen

AU - Ciuca, Octav

AU - Marquis, Emmanuelle

AU - Burke, Grace

AU - Tucker, Julie D.

PY - 2019

Y1 - 2019

N2 - Mechanical property degradation due to isothermal ageing is of potential concern for alloys based on the Ni–Cr binary system, such as Alloys 625 and 690. The disorder-order phase transformation, which is the primary source of embrittlement, has been studied in Ni–Cr model alloys by experimental approaches. Model alloys with different stoichiometries have been isothermally aged up to 5000 h at three temperatures (373, 418, and 475 °C) and characterized via nano-indentation, atom probe tomography, and transmission electron microscopy. Results show that off-stoichiometry alloys exhibit ordering but at a slower rate than stoichiometric (Ni/Cr = 2.0) alloy.

AB - Mechanical property degradation due to isothermal ageing is of potential concern for alloys based on the Ni–Cr binary system, such as Alloys 625 and 690. The disorder-order phase transformation, which is the primary source of embrittlement, has been studied in Ni–Cr model alloys by experimental approaches. Model alloys with different stoichiometries have been isothermally aged up to 5000 h at three temperatures (373, 418, and 475 °C) and characterized via nano-indentation, atom probe tomography, and transmission electron microscopy. Results show that off-stoichiometry alloys exhibit ordering but at a slower rate than stoichiometric (Ni/Cr = 2.0) alloy.

KW - Model alloys

KW - Ni-based

KW - Ordering

KW - Stoichiometry

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DO - 10.1007/978-3-030-04639-2_16

M3 - Conference contribution

AN - SCOPUS:85064062364

SN - 9783030046385

SN - 9783030046392

SN - 9783319515403

SN - 9783319651354

SN - 9783319728520

SN - 9783319950211

T3 - Minerals, Metals and Materials Series

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BT - Minerals, Metals and Materials Series

PB - Springer International Publishing

T2 - 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors 2019

Y2 - 18 August 2019 through 22 August 2019

ER -

The role of stoichiometry on ordering phase transformations in ni–cr alloys for nuclear applications

Abstract

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Keywords

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