Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys

Abstract This paper presents a bilinear log model, for predicting temperature-dependent ultimate strength of high-entropy alloys (HEAs) based on 21 HEA compositions. We consider the break temperature, T break, introduced in the model, an important parameter for design of materials with attractive hi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	B. Steingrimsson, X. Fan, X. Yang, M. C. Gao, Y. Zhang, P. K. Liaw
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Computer software QA76.75-76.765
Acceso en línea:	https://doaj.org/article/2de5ba1c7efe4a79ba0485d7e4826393
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2de5ba1c7efe4a79ba0485d7e4826393
record_format	dspace
spelling	oai:doaj.org-article:2de5ba1c7efe4a79ba0485d7e48263932021-12-02T18:14:22ZPredicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys10.1038/s41524-021-00623-42057-3960https://doaj.org/article/2de5ba1c7efe4a79ba0485d7e48263932021-09-01T00:00:00Zhttps://doi.org/10.1038/s41524-021-00623-4https://doaj.org/toc/2057-3960Abstract This paper presents a bilinear log model, for predicting temperature-dependent ultimate strength of high-entropy alloys (HEAs) based on 21 HEA compositions. We consider the break temperature, T break, introduced in the model, an important parameter for design of materials with attractive high-temperature properties, one warranting inclusion in alloy specifications. For reliable operation, the operating temperature of alloys may need to stay below T break. We introduce a technique of global optimization, one enabling concurrent optimization of model parameters over low-temperature and high-temperature regimes. Furthermore, we suggest a general framework for joint optimization of alloy properties, capable of accounting for physics-based dependencies, and show how a special case can be formulated to address the identification of HEAs offering attractive ultimate strength. We advocate for the selection of an optimization technique suitable for the problem at hand and the data available, and for properly accounting for the underlying sources of variations.B. SteingrimssonX. FanX. YangM. C. GaoY. ZhangP. K. LiawNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492Computer softwareQA76.75-76.765ENnpj Computational Materials, Vol 7, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Computer software QA76.75-76.765
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Computer software QA76.75-76.765 B. Steingrimsson X. Fan X. Yang M. C. Gao Y. Zhang P. K. Liaw Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys
description	Abstract This paper presents a bilinear log model, for predicting temperature-dependent ultimate strength of high-entropy alloys (HEAs) based on 21 HEA compositions. We consider the break temperature, T break, introduced in the model, an important parameter for design of materials with attractive high-temperature properties, one warranting inclusion in alloy specifications. For reliable operation, the operating temperature of alloys may need to stay below T break. We introduce a technique of global optimization, one enabling concurrent optimization of model parameters over low-temperature and high-temperature regimes. Furthermore, we suggest a general framework for joint optimization of alloy properties, capable of accounting for physics-based dependencies, and show how a special case can be formulated to address the identification of HEAs offering attractive ultimate strength. We advocate for the selection of an optimization technique suitable for the problem at hand and the data available, and for properly accounting for the underlying sources of variations.
format	article
author	B. Steingrimsson X. Fan X. Yang M. C. Gao Y. Zhang P. K. Liaw
author_facet	B. Steingrimsson X. Fan X. Yang M. C. Gao Y. Zhang P. K. Liaw
author_sort	B. Steingrimsson
title	Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys
title_short	Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys
title_full	Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys
title_fullStr	Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys
title_full_unstemmed	Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys
title_sort	predicting temperature-dependent ultimate strengths of body-centered-cubic (bcc) high-entropy alloys
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2de5ba1c7efe4a79ba0485d7e4826393
work_keys_str_mv	AT bsteingrimsson predictingtemperaturedependentultimatestrengthsofbodycenteredcubicbcchighentropyalloys AT xfan predictingtemperaturedependentultimatestrengthsofbodycenteredcubicbcchighentropyalloys AT xyang predictingtemperaturedependentultimatestrengthsofbodycenteredcubicbcchighentropyalloys AT mcgao predictingtemperaturedependentultimatestrengthsofbodycenteredcubicbcchighentropyalloys AT yzhang predictingtemperaturedependentultimatestrengthsofbodycenteredcubicbcchighentropyalloys AT pkliaw predictingtemperaturedependentultimatestrengthsofbodycenteredcubicbcchighentropyalloys
_version_	1718378384573071360

Predicting temperature-dependent ultimate strengths of body-centered-cubic (BCC) high-entropy alloys

Ejemplares similares