Irradiation

辐照

基本信息

  • 批准号:
    23760822
  • 负责人:
  • 金额:
    $ 2.91万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
  • 财政年份:
    2011
  • 资助国家:
    日本
  • 起止时间:
    2011 至 2013
  • 项目状态:
    已结题

项目摘要

Irradiation-induced precipitates/grain boundary segregation are one of the main origins for irradiation-induced degradation of a stainless steel. For instance, fine precipitates causes irradiation-induced hardening. This study investigated a stainless steel irradiated to a dose of over twenty displacement per atom at the temperature of a light water reactor operation in the fuel wrapper plates of a commercial pressurized water reactor by using three-dimensional atom probe. A high number density of Ni-Si precipitates was observed, which is one order of magnitude higher than that of Frank loops observed by transmission electron microscope. The morphology of the precipitate, such as size, number density and chemical composition, were analyzed in detail, then the hardening due to the precipitates was estimated by using Orowan-model. It is found that the Ni-Si precipitates have an important contribution to irradiation-hardening.
辐照诱发的沉淀物/晶界偏析是不锈钢辐照劣化的主要原因之一。例如,细小的沉淀物导致辐射诱导硬化。本文利用三维原子探针研究了在轻水堆运行温度下,在商用压水堆燃料包封板中,一种不锈钢在超过20个原子位移的剂量下辐照的情况。结果表明,Ni-Si析出相的数密度比透射电镜观察到的Frank环高一个数量级。对析出相的尺寸、数密度和化学成分等形貌进行了详细的分析,并利用Orowan模型对析出相引起的硬化进行了估算。发现Ni-Si析出相对辐照硬化有重要贡献。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Grain boundary segregation in neutron-irradiated 304 stainless steel studied by atom probe tomography
  • DOI:
    10.1016/j.jnucmat.2011.11.072
  • 发表时间:
    2012-06
  • 期刊:
  • 影响因子:
    3.1
  • 作者:
    T. Toyama;Y. Nozawa;W. Renterghem;Y. Matsukawa;M. Hatakeyama;Y. Nagai;A. A. Mazouzi-A.;S. Dyck
  • 通讯作者:
    T. Toyama;Y. Nozawa;W. Renterghem;Y. Matsukawa;M. Hatakeyama;Y. Nagai;A. A. Mazouzi-A.;S. Dyck
Effects of post-irradiation annealing and re-irradiation onmicrostructure in surveillance test specimens of a VVER-typeRPV steel
辐照后退火和再辐照对VVER型RPV钢监督试样显微组织的影响
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    T. Toyama;A. Kuramoto;Y.Nozawa;Y. Matsukawa;M.Hasegawa;M. Valo;Y. Nagai
  • 通讯作者:
    Y. Nagai
Effects of post-irradiation annealing and re-irradiation on microstructure in surveillance test specimens of the Loviisa-1 reactor studied by atom probe tomography and positron annihilation
  • DOI:
    10.1016/j.jnucmat.2014.01.036
  • 发表时间:
    2014-06
  • 期刊:
  • 影响因子:
    3.1
  • 作者:
    T. Toyama;A. Kuramoto;Y. Nagai;K. Inoue;Y. Nozawa;Y. Shimizu;Y. Matsukawa;M. Hasegawa;M. Valo
  • 通讯作者:
    T. Toyama;A. Kuramoto;Y. Nagai;K. Inoue;Y. Nozawa;Y. Shimizu;Y. Matsukawa;M. Hasegawa;M. Valo
旧ソ連型炉圧力容器鋼監視試験片のミクロ組織分析:照射後焼鈍および再照射効果
前苏联型反应堆压力容器钢监测试件的显微组织分析:辐照后退火和再辐照效应
  • DOI:
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    0
  • 作者:
    外山健;蔵本明;井上耕治;野沢康子;長谷川雅幸;永井康介;M.Valo
  • 通讯作者:
    M.Valo
Effects of post-irradiation annealing and re-irradiation on microstructure in surveillance test specimens of RPV steel studied by 3D-AP and positron annihilation
3D-AP 和正电子湮灭研究辐照后退火和再辐照对 RPV 钢监视试样显微组织的影响
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    T. Toyama;A. Kuramoto;Y. Nozawa;Y. Matsukawa;M. Hasegawa;Y. Nagai;M. Valo
  • 通讯作者:
    M. Valo
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TOYAMA Takeshi其他文献

REMOVAL OF RADIOACTIVE CESIUM FROM OCEAN SULUDGE BY THE BACTERIUM USING PURIFICATION SYSTEM OF CIRCULATION TYPE
循环型净化系统细菌去除海泥中放射性铯
EFFECT OF ADDITION OF BACTERIA ON THE DEVELOPMENT ON MOST SUITABLE REMOVAL METHOD OF RADIOACTIVE CESIUM ADSORBED ON OCEAN SLUDGE BY USING FINE BUBBLE AND ACTIVATING MICROORGANISMS
细菌添加对开发最适宜的微细气泡活化微生物去除海泥吸附放射性铯方法的影响
サブ回折限界照明顕微法における奥行き方向分解能の評価
亚衍射有限照明显微镜深度分辨率的评估
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    TOYAMA Takeshi;YAJIMA Miyuki;OHNO Noriyasu;KUWABARA Tatsuya;ALIMOV Vladimir Kh.;HATANO Yuji;山田理己,小倉裕介,西村隆宏,玉田洋介,村田隆,谷田純
  • 通讯作者:
    山田理己,小倉裕介,西村隆宏,玉田洋介,村田隆,谷田純
COMPARISON OF PURIFICATION PERFORMANCE AGAINST OCEAN SLUDGE IN TWO SEA-AREA BY USING PURIFICATION SYSTEM OF CIRCULATION TYPE
循环式净化系统对两海域污泥净化性能比较
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    OKAMOTO Kyoichi;KOMORIYA Tomoe;TOYAMA Takeshi;HIRANO Hirosuke,et.al.;岡本強一,小森谷友絵,遠山岳史;岡本強一,小森谷友絵,遠山岳史
  • 通讯作者:
    岡本強一,小森谷友絵,遠山岳史
PURIFICATION EXPERIMENTS ON THE PASIG RIVER, PHILIPPINES USING A CIRCULATION-TYPE PURIFICATION SYSTEM
菲律宾帕西格河循环式净化系统净化实验

TOYAMA Takeshi的其他文献

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{{ truncateString('TOYAMA Takeshi', 18)}}的其他基金

Preparation of silica hollow spherical particles by spray drying from highly concentrated silicic acid solution
高浓硅酸溶液喷雾干燥制备二氧化硅空心球颗粒
  • 批准号:
    16K06732
  • 财政年份:
    2016
  • 资助金额:
    $ 2.91万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Preparation of compositionally graded hollow spherical particles with water-retaining ability for soil improvement
土壤改良用成分分级保水空心球形颗粒的制备
  • 批准号:
    24560893
  • 财政年份:
    2012
  • 资助金额:
    $ 2.91万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Preparation of a navel functional fertilizer using compositionally graded particles
采用成分分级颗粒制备脐部功能肥料
  • 批准号:
    22760566
  • 财政年份:
    2010
  • 资助金额:
    $ 2.91万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Preparation of composition-graded spherical hollow particle by spray-drying method
喷雾干燥法制备成分分级球形空心粒子
  • 批准号:
    20760497
  • 财政年份:
    2008
  • 资助金额:
    $ 2.91万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Nano-carbides and carbide-matrix interfaces in nuclear reactor pressure vessel steel studied by 3D-AP
3D-AP 研究核反应堆压力容器钢中的纳米碳化物和碳化物基体界面
  • 批准号:
    20860018
  • 财政年份:
    2008
  • 资助金额:
    $ 2.91万
  • 项目类别:
    Grant-in-Aid for Young Scientists (Start-up)
Hadron Accelerator improvement toward high intensity and hi8gh brightness beams
强子加速器向高强度和高亮度光束的改进
  • 批准号:
    16540272
  • 财政年份:
    2004
  • 资助金额:
    $ 2.91万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
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