Irradiation Damage in Tungsten alloys
钨合金的辐照损伤
基本信息
- 批准号:2606423
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:英国
- 项目类别:Studentship
- 财政年份:2021
- 资助国家:英国
- 起止时间:2021 至 无数据
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Materials suitable for use in the divertor of a nuclear fusion reactor need to be able to withstand, high heat loads (upto 20MW/m2), high transient stress levels, and high levels of irradiation damage from neutrons. This makes it one of the most extreme environments for any material to have to survive in. The leading candidate material is tungsten due to its high melting point, and good resistance to plasma erosion. However its mechanical properties are poor and there is a lack of knowledge on how they are degraded by neutron irradiation. It is well know that neutron irradiation will have two major effects on the tungsten. 1) damage to the crystal lattice leading to defects such as vacancies, dislocation loops and voids and 2)transmutation in to different elements which leads to upto 5% of the tungsten becoming rhenium, osmium, tantalum and other minor elements. The clustering and evolution of the microstructure due to the original and transmuted elements interacting with the crystallographic defects determines important properties like ductility and thermal conductivity. The interaction of multiple elements is relatively unknown as most research to now has focused on pure tungsten or binary alloys. In particular how the different transmutation products interact with each other is unclear. Some are known to clusters but others may antisegregate. A knowledge of this is need if models of the irradiation damage process are to be developed that can include realistic transmutation microstructures. Two sorts of irradiated samples will be studied 1) ion irradiated samples which are pre-alloyed to have WReTaOs levels predicted to be produced in future fusion reactors. These have been irradiated at LANL in the USA and Surrey in the UK and 2) neutron irradiated samples from fission reactors (HFR Holland, SCK-CEN Belgium and Maria, Poland). How well the ion irradiations mimic the neutron irradiation is an open question and one we will answer with this project.This project will use atom probe tomography (APT) to perform chemical analysis at the single atom length scale and relate the chemical structures observed to crystallographic defects imaged in the transmission electron microscope. There will be a focus on developing correlative techniques to directly image the same defects in TEM and APT. Neutron irradiated samples will be studied using newly installed equipment at CCFE and Oxford for the study of active materials. This includes the countries first active atom probe. The effect the microstructural damage has on mechanical properties will be studied using newly developed nanoindentation methods to map large areas (several mm2). This will then allow an understanding of the differences between ion and neutron damage in tungsten alloys and to develop methods to predict neutron irradiated microstructures using surrogate irradiations. The student will be exposed to a wide range of experimental techniques and data analysis methods and learn to work on active materials. This project is aligned with the energy and nuclear fusion EPSRC areas.
适用于核聚变反应堆偏滤器的材料需要能够承受高热负荷(高达20 MW/m2)、高瞬态应力水平和高水平的中子辐照损伤。这使得它成为任何材料必须生存的最极端的环境之一。主要的候选材料是钨,因为它的熔点高,并且对等离子体侵蚀具有良好的抵抗力。然而,其机械性能差,并且缺乏关于它们如何被中子辐照降解的知识。众所周知,中子辐照对钨有两个主要影响。1)对晶格的损伤导致缺陷,例如空位、位错环和空隙,以及2)转化成不同的元素,这导致高达5%的钨变成铌、锇、钽和其他微量元素。由于原始元素和转化元素与晶体缺陷相互作用而导致的微观结构的聚集和演化决定了诸如延展性和导热性的重要性质。多元素的相互作用是相对未知的,因为大多数研究现在都集中在纯钨或二元合金上。特别是,不同的嬗变产物如何相互作用尚不清楚。一些已知的集群,但其他人可能反隔离。这方面的知识是需要的,如果模型的辐照损伤过程中要开发,可以包括现实的嬗变微观结构。将研究两种辐照样品:1)离子辐照样品,其被预合金化以具有预测在未来聚变反应堆中产生的WReTaOs水平。这些样品已在美国LANL和英国萨里进行了辐照,2)来自裂变反应堆(荷兰HFR、比利时SCK-CEN和波兰Maria)的中子辐照样品。离子辐照模拟中子辐照的效果如何是一个悬而未决的问题,我们将在本项目中回答这个问题。本项目将使用原子探针层析成像(APT)在单原子长度尺度上进行化学分析,并将观察到的化学结构与透射电子显微镜中成像的晶体缺陷相关联。将重点发展相关技术,以直接成像TEM和APT中相同的缺陷。将使用CCFE和牛津大学新安装的用于活性材料研究的设备对中子辐照样品进行研究。这包括该国第一个主动原子探测器。将使用新开发的纳米压痕方法来映射大面积(几平方毫米)的微观结构损伤对机械性能的影响进行研究。这将使钨合金的离子和中子损伤之间的差异的理解,并开发方法来预测中子辐照的微结构使用替代辐照。学生将接触到广泛的实验技术和数据分析方法,并学习在活性材料上工作。该项目与能源和核聚变EPSRC领域保持一致。
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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
其他文献
吉治仁志 他: "トランスジェニックマウスによるTIMP-1の線維化促進機序"最新医学. 55. 1781-1787 (2000)
Hitoshi Yoshiji 等:“转基因小鼠中 TIMP-1 的促纤维化机制”现代医学 55. 1781-1787 (2000)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
LiDAR Implementations for Autonomous Vehicle Applications
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
吉治仁志 他: "イラスト医学&サイエンスシリーズ血管の分子医学"羊土社(渋谷正史編). 125 (2000)
Hitoshi Yoshiji 等人:“血管医学与科学系列分子医学图解”Yodosha(涉谷正志编辑)125(2000)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Effect of manidipine hydrochloride,a calcium antagonist,on isoproterenol-induced left ventricular hypertrophy: "Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,K.,Teragaki,M.,Iwao,H.and Yoshikawa,J." Jpn Circ J. 62(1). 47-52 (1998)
钙拮抗剂盐酸马尼地平对异丙肾上腺素引起的左心室肥厚的影响:“Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('', 18)}}的其他基金
An implantable biosensor microsystem for real-time measurement of circulating biomarkers
用于实时测量循环生物标志物的植入式生物传感器微系统
- 批准号:
2901954 - 财政年份:2028
- 资助金额:
-- - 项目类别:
Studentship
Exploiting the polysaccharide breakdown capacity of the human gut microbiome to develop environmentally sustainable dishwashing solutions
利用人类肠道微生物群的多糖分解能力来开发环境可持续的洗碗解决方案
- 批准号:
2896097 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
A Robot that Swims Through Granular Materials
可以在颗粒材料中游动的机器人
- 批准号:
2780268 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
Likelihood and impact of severe space weather events on the resilience of nuclear power and safeguards monitoring.
严重空间天气事件对核电和保障监督的恢复力的可能性和影响。
- 批准号:
2908918 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
Proton, alpha and gamma irradiation assisted stress corrosion cracking: understanding the fuel-stainless steel interface
质子、α 和 γ 辐照辅助应力腐蚀开裂:了解燃料-不锈钢界面
- 批准号:
2908693 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
Field Assisted Sintering of Nuclear Fuel Simulants
核燃料模拟物的现场辅助烧结
- 批准号:
2908917 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
Assessment of new fatigue capable titanium alloys for aerospace applications
评估用于航空航天应用的新型抗疲劳钛合金
- 批准号:
2879438 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
Developing a 3D printed skin model using a Dextran - Collagen hydrogel to analyse the cellular and epigenetic effects of interleukin-17 inhibitors in
使用右旋糖酐-胶原蛋白水凝胶开发 3D 打印皮肤模型,以分析白细胞介素 17 抑制剂的细胞和表观遗传效应
- 批准号:
2890513 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
Understanding the interplay between the gut microbiome, behavior and urbanisation in wild birds
了解野生鸟类肠道微生物组、行为和城市化之间的相互作用
- 批准号:
2876993 - 财政年份:2027
- 资助金额:
-- - 项目类别:
Studentship
相似海外基金
CAREER: Bridging Research & Education in Delineating Fatigue Performance & Damage Mechanisms in Metal Fused Filament Fabricated Inconel 718
职业:桥梁研究
- 批准号:
2338178 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Standard Grant
A novel damage characterization technique based on adaptive deconvolution extraction algorithm of multivariate AE signals for accurate diagnosis of osteoarthritic knees
基于多变量 AE 信号自适应反卷积提取算法的新型损伤表征技术,用于准确诊断膝关节骨关节炎
- 批准号:
24K07389 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
Global Road Damage Detection with privacy-preserved collaboration
通过保护隐私的协作进行全球道路损坏检测
- 批准号:
24K17366 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists
Understanding the mechanisms underlying noise-induced damage of hair cell ribbon synapses
了解噪声引起的毛细胞带突触损伤的机制
- 批准号:
BB/Z514743/1 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Fellowship
CMMI-EPSRC: Damage Tolerant 3D micro-architectured brittle materials
CMMI-EPSRC:耐损伤 3D 微结构脆性材料
- 批准号:
EP/Y032489/1 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Research Grant
Greatwall in replication stress/DNA damage responses and oral cancer resistance
长城在复制应激/DNA损伤反应和口腔癌抵抗中的作用
- 批准号:
10991546 - 财政年份:2024
- 资助金额:
-- - 项目类别:
DNA repair pathway coordination during damage processing
损伤处理过程中 DNA 修复途径的协调
- 批准号:
10748479 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Designing metallic glass structures for damage tolerance via 3D printing
通过 3D 打印设计金属玻璃结构以实现损伤容限
- 批准号:
DP240101127 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Discovery Projects
Computational MultiPhysics Analysis of 3D Structural Damage and Failure
3D 结构损伤和失效的计算多物理场分析
- 批准号:
DP240101471 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Discovery Projects
LSIMPACT: Life-like Resilient Materials for Mitigating Liquid-Solid Impact Damage
LSIMPACT:用于减轻液固冲击损伤的逼真弹性材料
- 批准号:
EP/Y037103/1 - 财政年份:2024
- 资助金额:
-- - 项目类别:
Research Grant