Direct atomic-scale visualization of growth and dissolution of γNb                         5                         Si                         3                          in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy

Xiao Ma; Xiping Guo; Maosen Fu; Yanqiang Qiao

doi:10.1016/j.scriptamat.2019.01.040

Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy

Xiao Ma
, Xiping Guo
, Maosen Fu
, Yanqiang Qiao

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

11 引用（Scopus）

摘要

Precipitation and dissolution of γNb ₅ Si ₃ precipitates in an Nb-Ti-Si based alloy has been visualized by atomic-scale in-situ heating transmission electron microscopy. Nanoscale γNb ₅ Si ₃ precipitates nucleate inside Nbss around 850 °C with two orientation relationships (ORs): (200) _Nb //11¯00 _γ (OR-I) and 101¯ _Nb //11¯00 _γ (OR-II). Growth and dissolution of the two orientational γNb ₅ Si ₃ precipitates are promoted by motion of atomic steps and facets at interfaces. Precipitates along OR-I is less stable than that of OR-II, adopting dissolution temperature of 1125 °C and 1250 °C respectively. The orientational stability of γNb ₅ Si ₃ precipitates, which is correlated with planar disregistry, affects their evolution behavior directly upon heating.

源语言	英语
页（从-至）	86-90
页数	5
期刊	Scripta Materialia
卷	164
DOI	https://doi.org/10.1016/j.scriptamat.2019.01.040
出版状态	已出版 - 15 4月 2019

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10.1016/j.scriptamat.2019.01.040

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Ma, X., Guo, X., Fu, M., & Qiao, Y. (2019). Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy Scripta Materialia, 164, 86-90. https://doi.org/10.1016/j.scriptamat.2019.01.040

Ma, Xiao ; Guo, Xiping ; Fu, Maosen 等. / Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy 在: Scripta Materialia. 2019 ; 卷 164. 页码 86-90.

@article{df5f7a211701464888a896916e1658d2,

title = " Direct atomic-scale visualization of growth and dissolution of γNb 5 Si 3 in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy ",

abstract = " Precipitation and dissolution of γNb 5 Si 3 precipitates in an Nb-Ti-Si based alloy has been visualized by atomic-scale in-situ heating transmission electron microscopy. Nanoscale γNb 5 Si 3 precipitates nucleate inside Nbss around 850 °C with two orientation relationships (ORs): (200) Nb //11¯00 γ (OR-I) and 101¯ Nb //11¯00 γ (OR-II). Growth and dissolution of the two orientational γNb 5 Si 3 precipitates are promoted by motion of atomic steps and facets at interfaces. Precipitates along OR-I is less stable than that of OR-II, adopting dissolution temperature of 1125 °C and 1250 °C respectively. The orientational stability of γNb 5 Si 3 precipitates, which is correlated with planar disregistry, affects their evolution behavior directly upon heating.",

keywords = "In-situ heating TEM, Interfaces, Nb-Ti-Si based alloy, Orientational stability, Precipitation",

author = "Xiao Ma and Xiping Guo and Maosen Fu and Yanqiang Qiao",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = apr,

day = "15",

doi = "10.1016/j.scriptamat.2019.01.040",

language = "英语",

volume = "164",

pages = "86--90",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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Ma, X, Guo, X, Fu, M & Qiao, Y 2019, ' Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy ', Scripta Materialia, 卷 164, 页码 86-90. https://doi.org/10.1016/j.scriptamat.2019.01.040

Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy . / Ma, Xiao; Guo, Xiping; Fu, Maosen 等.
在: Scripta Materialia, 卷 164, 15.04.2019, 页码 86-90.

科研成果: 期刊稿件 › 文章 › 同行评审

TY - JOUR

T1 - Direct atomic-scale visualization of growth and dissolution of γNb 5 Si 3 in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy

AU - Ma, Xiao

AU - Guo, Xiping

AU - Fu, Maosen

AU - Qiao, Yanqiang

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Precipitation and dissolution of γNb 5 Si 3 precipitates in an Nb-Ti-Si based alloy has been visualized by atomic-scale in-situ heating transmission electron microscopy. Nanoscale γNb 5 Si 3 precipitates nucleate inside Nbss around 850 °C with two orientation relationships (ORs): (200) Nb //11¯00 γ (OR-I) and 101¯ Nb //11¯00 γ (OR-II). Growth and dissolution of the two orientational γNb 5 Si 3 precipitates are promoted by motion of atomic steps and facets at interfaces. Precipitates along OR-I is less stable than that of OR-II, adopting dissolution temperature of 1125 °C and 1250 °C respectively. The orientational stability of γNb 5 Si 3 precipitates, which is correlated with planar disregistry, affects their evolution behavior directly upon heating.

AB - Precipitation and dissolution of γNb 5 Si 3 precipitates in an Nb-Ti-Si based alloy has been visualized by atomic-scale in-situ heating transmission electron microscopy. Nanoscale γNb 5 Si 3 precipitates nucleate inside Nbss around 850 °C with two orientation relationships (ORs): (200) Nb //11¯00 γ (OR-I) and 101¯ Nb //11¯00 γ (OR-II). Growth and dissolution of the two orientational γNb 5 Si 3 precipitates are promoted by motion of atomic steps and facets at interfaces. Precipitates along OR-I is less stable than that of OR-II, adopting dissolution temperature of 1125 °C and 1250 °C respectively. The orientational stability of γNb 5 Si 3 precipitates, which is correlated with planar disregistry, affects their evolution behavior directly upon heating.

KW - In-situ heating TEM

KW - Interfaces

KW - Nb-Ti-Si based alloy

KW - Orientational stability

KW - Precipitation

UR - https://www.scopus.com/pages/publications/85060762155

U2 - 10.1016/j.scriptamat.2019.01.040

DO - 10.1016/j.scriptamat.2019.01.040

M3 - 文章

AN - SCOPUS:85060762155

SN - 1359-6462

VL - 164

SP - 86

EP - 90

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Ma X, Guo X, Fu M, Qiao Y. Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy Scripta Materialia. 2019 4月 15;164:86-90. doi: 10.1016/j.scriptamat.2019.01.040

Direct atomic-scale visualization of growth and dissolution of γNb 5 Si 3 in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy

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Direct atomic-scale visualization of growth and dissolution of γNb ₅ Si ₃ in an Nb-Ti-Si based alloy via in-situ transmission electron microscopy