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Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni3Ti intermetallic nanoprecipitates

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Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni3Ti intermetallic nanoprecipitates. / Xu, W.; Rivera-Díaz-del-Castillo, P. E J; Wang, W. et al.
In: Acta Materialia, Vol. 58, No. 10, 06.2010, p. 3582-3593.

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Xu W, Rivera-Díaz-del-Castillo PEJ, Wang W, Yang K, Bliznuk V, Kestens LAI et al. Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni3Ti intermetallic nanoprecipitates. Acta Materialia. 2010 Jun;58(10):3582-3593. Epub 2010 Mar 18. doi: 10.1016/j.actamat.2010.02.028

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@article{f2122c857eac4e9a93742e57662d603e,
title = "Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni3Ti intermetallic nanoprecipitates",
abstract = "A general computational alloy design approach based on thermodynamic and physical metallurgical principles, and coupled with a genetic optimization scheme, is presented. The method is applied to the design of new ultra-high-strength maraging stainless steels strengthened by Ni3Ti intermetallics. In the first design round, the alloy composition is optimized on the basis of precipitate formation at a fixed ageing temperature without considering other steps in the heat treatment. In the second round, the alloy is redesigned, applying an integrated model which allows for the simultaneous optimization of alloy composition and the ageing temperature as well as the prior austenitization temperature. The experimental characterizations of prototype alloys clearly demonstrate that alloys designed by the proposed approach achieve the desired microstructures.",
keywords = "Alloy design, Maraging steels, Precipitation, Stainless steels, Thermodynamics",
author = "W. Xu and Rivera-D{\'i}az-del-Castillo, {P. E J} and W. Wang and K. Yang and V. Bliznuk and Kestens, {L. A I} and {van der Zwaag}, S.",
year = "2010",
month = jun,
doi = "10.1016/j.actamat.2010.02.028",
language = "English",
volume = "58",
pages = "3582--3593",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",
number = "10",

}

RIS

TY - JOUR

T1 - Genetic design and characterization of novel ultra-high-strength stainless steels strengthened by Ni3Ti intermetallic nanoprecipitates

AU - Xu, W.

AU - Rivera-Díaz-del-Castillo, P. E J

AU - Wang, W.

AU - Yang, K.

AU - Bliznuk, V.

AU - Kestens, L. A I

AU - van der Zwaag, S.

PY - 2010/6

Y1 - 2010/6

N2 - A general computational alloy design approach based on thermodynamic and physical metallurgical principles, and coupled with a genetic optimization scheme, is presented. The method is applied to the design of new ultra-high-strength maraging stainless steels strengthened by Ni3Ti intermetallics. In the first design round, the alloy composition is optimized on the basis of precipitate formation at a fixed ageing temperature without considering other steps in the heat treatment. In the second round, the alloy is redesigned, applying an integrated model which allows for the simultaneous optimization of alloy composition and the ageing temperature as well as the prior austenitization temperature. The experimental characterizations of prototype alloys clearly demonstrate that alloys designed by the proposed approach achieve the desired microstructures.

AB - A general computational alloy design approach based on thermodynamic and physical metallurgical principles, and coupled with a genetic optimization scheme, is presented. The method is applied to the design of new ultra-high-strength maraging stainless steels strengthened by Ni3Ti intermetallics. In the first design round, the alloy composition is optimized on the basis of precipitate formation at a fixed ageing temperature without considering other steps in the heat treatment. In the second round, the alloy is redesigned, applying an integrated model which allows for the simultaneous optimization of alloy composition and the ageing temperature as well as the prior austenitization temperature. The experimental characterizations of prototype alloys clearly demonstrate that alloys designed by the proposed approach achieve the desired microstructures.

KW - Alloy design

KW - Maraging steels

KW - Precipitation

KW - Stainless steels

KW - Thermodynamics

U2 - 10.1016/j.actamat.2010.02.028

DO - 10.1016/j.actamat.2010.02.028

M3 - Journal article

AN - SCOPUS:77950992392

VL - 58

SP - 3582

EP - 3593

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 10

ER -