The research of nano-scale particles in the oxide dispersion strengthened steels

Jian Chao He; Fa Rong Wan

doi:10.3969/j.issn.1001G9731.2014.17.005

The research of nano-scale particles in the oxide dispersion strengthened steels

Jian Chao He
, Fa Rong Wan^*

^*Corresponding author for this work

University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The composition and the size of nanoparticles in the 9CR-ODS has been investigated by STEM-EDS and atom probe tomography. According to the correlation between m(Y):m(Ti) ratio and nanoparticles size in 9Cr-ODS steel, three types of nanoparticles were observed including: (1) small sized nanoparticles less than 5 nm, m(Y):m(Ti)＜1, indicating non-stoichiometric nanoparticles, (2) intermediate sized nanoparticles, ranging from 5-40 nm, m(Y):m(Ti)≈1.0, indicating Y₂Ti₂O₇, (3) large sized nanoparticles more than 40 nm, indicating TiO₂. The nanoparticles was measured by proximity histogram (proxigram) method, exhibiting core shell structure with a Y-Ti-O core and a Cr shell.

Original language	English
Pages (from-to)	17029-17033
Number of pages	5
Journal	Gongneng Cailiao/Journal of Functional Materials
Volume	45
Issue number	17
DOIs	https://doi.org/10.3969/j.issn.1001G9731.2014.17.005
State	Published - 15 Sep 2014
Externally published	Yes

Keywords

APT
Nanoparticles
ODS steels

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10.3969/j.issn.1001G9731.2014.17.005

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title = "The research of nano-scale particles in the oxide dispersion strengthened steels",

abstract = "The composition and the size of nanoparticles in the 9CR-ODS has been investigated by STEM-EDS and atom probe tomography. According to the correlation between m(Y):m(Ti) ratio and nanoparticles size in 9Cr-ODS steel, three types of nanoparticles were observed including: (1) small sized nanoparticles less than 5 nm, m(Y):m(Ti)＜1, indicating non-stoichiometric nanoparticles, (2) intermediate sized nanoparticles, ranging from 5-40 nm, m(Y):m(Ti)≈1.0, indicating Y2Ti2O7, (3) large sized nanoparticles more than 40 nm, indicating TiO2. The nanoparticles was measured by proximity histogram (proxigram) method, exhibiting core shell structure with a Y-Ti-O core and a Cr shell.",

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T1 - The research of nano-scale particles in the oxide dispersion strengthened steels

AU - He, Jian Chao

AU - Wan, Fa Rong

PY - 2014/9/15

Y1 - 2014/9/15

N2 - The composition and the size of nanoparticles in the 9CR-ODS has been investigated by STEM-EDS and atom probe tomography. According to the correlation between m(Y):m(Ti) ratio and nanoparticles size in 9Cr-ODS steel, three types of nanoparticles were observed including: (1) small sized nanoparticles less than 5 nm, m(Y):m(Ti)＜1, indicating non-stoichiometric nanoparticles, (2) intermediate sized nanoparticles, ranging from 5-40 nm, m(Y):m(Ti)≈1.0, indicating Y2Ti2O7, (3) large sized nanoparticles more than 40 nm, indicating TiO2. The nanoparticles was measured by proximity histogram (proxigram) method, exhibiting core shell structure with a Y-Ti-O core and a Cr shell.

AB - The composition and the size of nanoparticles in the 9CR-ODS has been investigated by STEM-EDS and atom probe tomography. According to the correlation between m(Y):m(Ti) ratio and nanoparticles size in 9Cr-ODS steel, three types of nanoparticles were observed including: (1) small sized nanoparticles less than 5 nm, m(Y):m(Ti)＜1, indicating non-stoichiometric nanoparticles, (2) intermediate sized nanoparticles, ranging from 5-40 nm, m(Y):m(Ti)≈1.0, indicating Y2Ti2O7, (3) large sized nanoparticles more than 40 nm, indicating TiO2. The nanoparticles was measured by proximity histogram (proxigram) method, exhibiting core shell structure with a Y-Ti-O core and a Cr shell.

KW - APT

KW - Nanoparticles

KW - ODS steels

UR - https://www.scopus.com/pages/publications/84910094272

U2 - 10.3969/j.issn.1001G9731.2014.17.005

DO - 10.3969/j.issn.1001G9731.2014.17.005

M3 - 文章

AN - SCOPUS:84910094272

SN - 1001-9731

VL - 45

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JO - Gongneng Cailiao/Journal of Functional Materials

JF - Gongneng Cailiao/Journal of Functional Materials

IS - 17

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The research of nano-scale particles in the oxide dispersion strengthened steels

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Keywords

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