Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites

//Nb(ss) and α-Nb(5)Si(3) phases were detected. Meanwhile, Nb(2)C was observed, and the crystal forms of Nb(5)Si(3) changed in the C-doped composites. Furthermore, micron-sized and nano-sized Nb(2)C particles were found in the Nb(ss) layer. The orientation relationship of Nb(2)C phase and the surrou...

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Autores principales: Zeng, Delu, Xiao, Lairong, Xu, Shaofu, Yu, Huali, Zhang, Yu, Yu, Chenxu, Zhao, Xiaojun, Cai, Zhenyang, Li, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456330/
https://www.ncbi.nlm.nih.gov/pubmed/37629927
http://dx.doi.org/10.3390/ma16165637
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author Zeng, Delu
Xiao, Lairong
Xu, Shaofu
Yu, Huali
Zhang, Yu
Yu, Chenxu
Zhao, Xiaojun
Cai, Zhenyang
Li, Wei
author_facet Zeng, Delu
Xiao, Lairong
Xu, Shaofu
Yu, Huali
Zhang, Yu
Yu, Chenxu
Zhao, Xiaojun
Cai, Zhenyang
Li, Wei
author_sort Zeng, Delu
collection PubMed
description //Nb(ss) and α-Nb(5)Si(3) phases were detected. Meanwhile, Nb(2)C was observed, and the crystal forms of Nb(5)Si(3) changed in the C-doped composites. Furthermore, micron-sized and nano-sized Nb(2)C particles were found in the Nb(ss) layer. The orientation relationship of Nb(2)C phase and the surrounding Nb(ss) was [001](Nbss)//[010](Nb2C), (200) (Nbss)//(101) (Nb2C). Additionally, with the addition of C, the compressive strength of the composites, at 1400 °C, and the fracture toughness increased from 310 MPa and 11.9 MPa·m(1/2) to 330 MPa and 14.2 MPa·m(1/2), respectively; the addition of C mainly resulted in solid solution strengthening.
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spelling pubmed-104563302023-08-26 Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites Zeng, Delu Xiao, Lairong Xu, Shaofu Yu, Huali Zhang, Yu Yu, Chenxu Zhao, Xiaojun Cai, Zhenyang Li, Wei Materials (Basel) Article //Nb(ss) and α-Nb(5)Si(3) phases were detected. Meanwhile, Nb(2)C was observed, and the crystal forms of Nb(5)Si(3) changed in the C-doped composites. Furthermore, micron-sized and nano-sized Nb(2)C particles were found in the Nb(ss) layer. The orientation relationship of Nb(2)C phase and the surrounding Nb(ss) was [001](Nbss)//[010](Nb2C), (200) (Nbss)//(101) (Nb2C). Additionally, with the addition of C, the compressive strength of the composites, at 1400 °C, and the fracture toughness increased from 310 MPa and 11.9 MPa·m(1/2) to 330 MPa and 14.2 MPa·m(1/2), respectively; the addition of C mainly resulted in solid solution strengthening. MDPI 2023-08-15 /pmc/articles/PMC10456330/ /pubmed/37629927 http://dx.doi.org/10.3390/ma16165637 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zeng, Delu
Xiao, Lairong
Xu, Shaofu
Yu, Huali
Zhang, Yu
Yu, Chenxu
Zhao, Xiaojun
Cai, Zhenyang
Li, Wei
Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites
title Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites
title_full Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites
title_fullStr Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites
title_full_unstemmed Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites
title_short Effect of C Addition on the Microstructure and Fracture Properties of In Situ Laminated Nb/Nb(5)Si(3) Composites
title_sort effect of c addition on the microstructure and fracture properties of in situ laminated nb/nb(5)si(3) composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456330/
https://www.ncbi.nlm.nih.gov/pubmed/37629927
http://dx.doi.org/10.3390/ma16165637
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