Orientation dependence of microcosmic plasticity and toughness in Nb-Si alloys

Zuheng Jin; Lina Jia; Chengtong Ye; Wenbo Wang; Hu Zhang

doi:10.1016/j.jallcom.2022.167549

Orientation dependence of microcosmic plasticity and toughness in Nb-Si alloys

Zuheng Jin
, Lina Jia^*
, Chengtong Ye
, Wenbo Wang
, Hu Zhang

^*此作品的通讯作者

材料科学与工程学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

12 引用（Scopus）

摘要

The nano-hardness and elastic modulus on (001), (100), and (110) planes of Nb_ss and α-Nb₅Si₃ phase in Nb-Si alloys were investigated by nanoindentation. Electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) were performed to research the surface orientation and morphology of the enhancing deformation fields around the indents. The orientation dependence of microcosmic fracture toughness in Nb-Si alloys was predicted by the nano-hardness and elastic modulus of the individual phase. A simple phase boundary crystallographic model of (110) _Nbss // (110) _α-Nb5Si3 between Nb_ss and α-Nb₅Si₃ phases was established by EBSD analysis. The Easy-slip model was adopted to explain nanoindentation-induced deformation mechanisms of Nb_ss, which point to the activation of slip plane in the maximum Schmidt factor.

源语言	英语
文章编号	167549
期刊	Journal of Alloys and Compounds
卷	934
DOI	https://doi.org/10.1016/j.jallcom.2022.167549
出版状态	已出版 - 10 2月 2023

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title = "Orientation dependence of microcosmic plasticity and toughness in Nb-Si alloys",

abstract = "The nano-hardness and elastic modulus on (001), (100), and (110) planes of Nbss and α-Nb5Si3 phase in Nb-Si alloys were investigated by nanoindentation. Electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) were performed to research the surface orientation and morphology of the enhancing deformation fields around the indents. The orientation dependence of microcosmic fracture toughness in Nb-Si alloys was predicted by the nano-hardness and elastic modulus of the individual phase. A simple phase boundary crystallographic model of (110) Nbss // (110) α-Nb5Si3 between Nbss and α-Nb5Si3 phases was established by EBSD analysis. The Easy-slip model was adopted to explain nanoindentation-induced deformation mechanisms of Nbss, which point to the activation of slip plane in the maximum Schmidt factor.",

keywords = "EBSD, Fracture toughness, Nanoindentation, Nb-Si alloys, Phase boundary, Plasticity",

author = "Zuheng Jin and Lina Jia and Chengtong Ye and Wenbo Wang and Hu Zhang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2023",

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day = "10",

doi = "10.1016/j.jallcom.2022.167549",

language = "英语",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Orientation dependence of microcosmic plasticity and toughness in Nb-Si alloys

AU - Jin, Zuheng

AU - Jia, Lina

AU - Ye, Chengtong

AU - Wang, Wenbo

AU - Zhang, Hu

PY - 2023/2/10

Y1 - 2023/2/10

N2 - The nano-hardness and elastic modulus on (001), (100), and (110) planes of Nbss and α-Nb5Si3 phase in Nb-Si alloys were investigated by nanoindentation. Electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) were performed to research the surface orientation and morphology of the enhancing deformation fields around the indents. The orientation dependence of microcosmic fracture toughness in Nb-Si alloys was predicted by the nano-hardness and elastic modulus of the individual phase. A simple phase boundary crystallographic model of (110) Nbss // (110) α-Nb5Si3 between Nbss and α-Nb5Si3 phases was established by EBSD analysis. The Easy-slip model was adopted to explain nanoindentation-induced deformation mechanisms of Nbss, which point to the activation of slip plane in the maximum Schmidt factor.

AB - The nano-hardness and elastic modulus on (001), (100), and (110) planes of Nbss and α-Nb5Si3 phase in Nb-Si alloys were investigated by nanoindentation. Electron backscatter diffraction (EBSD) and scanning electron microscopy (SEM) were performed to research the surface orientation and morphology of the enhancing deformation fields around the indents. The orientation dependence of microcosmic fracture toughness in Nb-Si alloys was predicted by the nano-hardness and elastic modulus of the individual phase. A simple phase boundary crystallographic model of (110) Nbss // (110) α-Nb5Si3 between Nbss and α-Nb5Si3 phases was established by EBSD analysis. The Easy-slip model was adopted to explain nanoindentation-induced deformation mechanisms of Nbss, which point to the activation of slip plane in the maximum Schmidt factor.

KW - EBSD

KW - Fracture toughness

KW - Nanoindentation

KW - Nb-Si alloys

KW - Phase boundary

KW - Plasticity

UR - https://www.scopus.com/pages/publications/85141532852

U2 - 10.1016/j.jallcom.2022.167549

DO - 10.1016/j.jallcom.2022.167549

M3 - 文章

AN - SCOPUS:85141532852

SN - 0925-8388

VL - 934

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 167549

ER -

Orientation dependence of microcosmic plasticity and toughness in Nb-Si alloys

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