Radiation-hardening and nano-cluster formation in neutron-irradiated 9Cr-2W low activation steels with different Si contents

被引：13

作者：

Zhang, Y. F. ^{[1
]}

Zhan, Q. ^{[1
]}

Ohnuki, S. ^{[1
]}

Kimura, A. ^{[2
]}

Wan, F. R. ^{[1
]}

Yoshida, K. ^{[3
]}

Nagai, Y. ^{[3
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

[2] Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan

[3] Tohoku Univ, Oarai Ctr, Inst Mat Res, Oarai, Ibaraki 3111313, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 2019年 / 517卷

基金：

美国国家科学基金会;

关键词：

Silicon; Dislocation loops; Radiation-enhanced nano-clusters; Radiation-hardening; Neutron irradiation; Ferritic and martensitic steels; G-PHASE; TENSILE PROPERTIES; STAINLESS-STEEL; BEHAVIOR; MICROSTRUCTURE; PRECIPITATION; EVOLUTION; SILICON; HARDNESS; ALLOYS;

D O I：

10.1016/j.jnucmat.2019.01.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two kinds of 9Cr-2W steels with and without the addition of 0.1 wt% Si were irradiated with neutrons up to a fluence of 4.8 x 10(23) n/m(2) at 563 K. Precipitates, dislocation loops, radiation-enhanced nano-clusters and radiation-hardening were studied using advanced electron microscopy and micro-hardness test. Si reduced the number density of dislocation loops, and therefore the extent of radiation-hardening decreased. It also favored the formation of silicide-like nano-clusters. In this study, the role of Si in neutron irradiated 9Cr-2W steels is discussed, and then extended to nano-clusters and irradiation-hardening. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：1 / 8

页数：8

共 28 条

[1] THE EFFECT OF SILICON ON THE GRAIN-SIZE AND THE TENSILE PROPERTIES OF LOW-CARBON STEELS [J].

ANYA, CC ;

BAKER, TN .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 118 :197-206

[2] Synergetic effects of Mn and Si in the interaction with point defects in bcc Fe [J].

Bakaev, A. ;

Terentyev, A. ;

He, X. ;

Van Neck, D. .

JOURNAL OF NUCLEAR MATERIALS, 2014, 455 (1-3) :5-9

[3] Transformation Behavior of Low Carbon Steels Containing Two Different Si Contents [J].

Cai Ming-hui ;

Ding Hua ;

Zhang Jian-su ;

Li Long ;

Li Xiao-bin ;

Du Lin-xiu .

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2009, 16 (02) :55-60

[4] Precipitation behavior of stainless steel weld overlay cladding exposed to a long-term thermal aging [J].

Cao, Xinyuan ;

Zhu, Ping ;

Wang, Wei ;

Liu, Tingguang ;

Lu, Yonghao ;

Shoji, Tetsuo .

MATERIALS CHARACTERIZATION, 2018, 137 :77-83

[5] Effect of Si concentration on formation of vacancy complexes in electron-irradiated Fe16Cr-Si alloys studied by positron annihilation [J].

Druzhkov, Anatoly P. ;

Nikolaev, Alexander L. .

JOURNAL OF NUCLEAR MATERIALS, 2018, 508 :100-106

[6] Irradiation-induced microchemical changes in highly irradiated 316 stainless steel [J].

Fujii, K. ;

Fukuya, K. .

JOURNAL OF NUCLEAR MATERIALS, 2016, 469 :82-88

[7] Formation of G-phase in 20Cr32Ni1Nb Stainless Steel and its Effect on Mechanical Properties [J].

Guo, Xiao-Feng ;

Ni, Ying-Ying ;

Gong, Jian-Ming ;

Geng, Lu-Yang ;

Tang, Jian-Qun ;

Jiang, Yong ;

Jia, Xian-Kai ;

Yang, Xin-Yu .

ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2017, 30 (09) :829-839

[8]

Hunt R. M., 2014, FUSION ENG DES, V89

[9] Precipitate evolution in ion-irradiated HCM12A [J].

Jiao, Z. ;

Was, G. S. .

JOURNAL OF NUCLEAR MATERIALS, 2012, 425 (1-3) :105-111

[10]

Ke H., 2014, MRS COMMUN, P1

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