Computational and Experimental Characterization of Twin-twin Interactions in Hexagonal Metals
六方金属中孪晶相互作用的计算和实验表征
基本信息
- 批准号:1661686
- 负责人:
- 金额:$ 38.8万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-05-15 至 2021-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Hexagonal metals, such as magnesium and titanium with hexagonal close packed structure, have the potential for increasing the efficiency of fuel consumption because of their superior strength-to-density ratio. In particular, magnesium with a density low enough to make it 35 percent lighter than aluminum and 78 percent lighter than steel is perhaps the most appealing of these lightweight materials. Replacing steel structural materials with magnesium-based materials in automotive applications would boost fuel efficiency by more than 50 percent. However, magnesium's use remains fairly limited because of a gap in the knowledge of a phenomenon called twin-twin interactions. Twins are specific features in hexagonal materials that can occur from the nanoscale to microscale and responsible for what is called deformation twinning, which is a major mode of plasticity in magnesium and responsible for its low strength and poor deformability. This research will focus on understanding the effect of twin-twin interactions on the mechanisms of deformation in magnesium by performing modeling at multiple scales supported by experimental observations. The outcome will be a predictive model that would allow engineers and scientists to optimize the processing routes of hexagonal metals for specific structural and environmental applications. As part of this research, students will be provided an opportunity to be trained at a national laboratory. Undergraduate students from underrepresented groups will be hired as part of the research team, and K-12 students will be exposed to the research through outreach events.The long-term goal of this research is to establish a research framework for quantitatively characterizing and predicting the twinning induced microstructures and mechanical properties of hexagonal materials. It will link the macroscopic plastic responses to the crystallographic mechanisms causing them, while also accounting for microstructure evolution. To do so, the research team will characterize microstructures of twin-twin boundaries at the atomic level through atomistic simulations and transmission electron microscopes; identify twin-twin boundaries dominated deformation mechanisms at the atomic-/micro-scales by using atomistic simulations and in situ nanomechanical testing in scanning electron microscopies; establish twin-twin interaction models at the meso-scale by combining in situ mechanical testing and finite element analysis, and implement the meso-scale models into macro-scale effective-medium polycrystal plasticity models. The numerical and experimental tools developed through this project will eventually enable design of manufacturing processes for specific structural and environmental applications.
具有六方密排结构的镁和钛等六方金属由于其上级强度-密度比而具有提高燃料消耗效率的潜力。特别是,镁的密度足够低,比铝轻35%,比钢轻78%,这可能是这些轻质材料中最有吸引力的。在汽车应用中,用镁基材料取代钢结构材料将使燃油效率提高50%以上。然而,镁的使用仍然相当有限,因为在一个称为双胞胎相互作用的现象的知识差距。孪晶是六方晶系材料的特定特征,可以从纳米级到微米级发生,并负责所谓的变形孪晶,这是镁塑性的主要模式,并负责其低强度和差的变形性。本研究将侧重于通过在实验观察支持的多尺度下进行建模,了解孪生相互作用对镁变形机制的影响。其结果将是一个预测模型,使工程师和科学家能够优化六角形金属的加工路线,以满足特定的结构和环境应用。作为这项研究的一部分,学生将有机会在国家实验室接受培训。本研究的长期目标是建立一个定量表征和预测六方晶系材料孪晶诱导微结构和力学性能的研究框架。它将宏观塑性响应与导致它们的晶体学机制联系起来,同时也解释了微观结构的演变。为此,研究小组将通过原子模拟和透射电子显微镜在原子水平上表征孪-孪晶界的微观结构;通过原子模拟和扫描电子显微镜中的原位纳米力学测试在原子/微观尺度上确定孪-孪晶界主导的变形机制;结合原位力学测试和有限元分析,建立细观尺度下的孪晶-孪晶相互作用模型,并将细观尺度模型转化为宏观尺度下的有效介质多晶塑性模型。通过该项目开发的数值和实验工具最终将能够为特定的结构和环境应用设计制造工艺。
项目成果
期刊论文数量(18)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Crystallographic characters of {11¯22} twin-twin junctions in titanium
- DOI:10.1080/09500839.2017.1402132
- 发表时间:2017-11
- 期刊:
- 影响因子:1.2
- 作者:Shun Xu;M. Gong;Xinyan Xie;Yue Liu;C. Schuman;J. Lecomte;Jian Wang
- 通讯作者:Shun Xu;M. Gong;Xinyan Xie;Yue Liu;C. Schuman;J. Lecomte;Jian Wang
Extension of the classical theory for types I and II twinning
- DOI:10.1557/s43578-020-00003-6
- 发表时间:2021-01-05
- 期刊:
- 影响因子:2.7
- 作者:Hirth, J. P.;Wang, J.
- 通讯作者:Wang, J.
A topological model for defects and interfaces in complex crystal structures
- DOI:10.2138/am-2019-6892
- 发表时间:2019-07-01
- 期刊:
- 影响因子:3.1
- 作者:Hirth, J. P.;Wang, Jian;Hirth, Greg
- 通讯作者:Hirth, Greg
Pre-compression effect on microstructure evolution of extruded pure polycrystalline magnesium during reversed tension load
- DOI:10.1016/j.matchar.2017.10.003
- 发表时间:2017-12
- 期刊:
- 影响因子:4.7
- 作者:D. Culbertson;Qin Yu;Jian Wang;Yanyao Jiang
- 通讯作者:D. Culbertson;Qin Yu;Jian Wang;Yanyao Jiang
Experimentally quantifying critical stresses associated with basal slip and twinning in magnesium using micropillars
- DOI:10.1016/j.actamat.2017.06.008
- 发表时间:2017-08-15
- 期刊:
- 影响因子:9.4
- 作者:Liu, Y.;Li, N.;Tome, C. N.
- 通讯作者:Tome, C. N.
{{
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 }}
Jian Wang其他文献
Multi-objective Scheduling Method for Short-term Peak Shaving Operation of Cascade Hydro Plants
梯级水电站短期调峰运行多目标调度方法
- DOI:
10.1061/(asce)wr.1943-5452.0001274 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
Lingan Zhou;Chuntian Cheng;Shengli Liao;Jian Wang - 通讯作者:
Jian Wang
A pruning algorithm with L1/2 regularizer for extreme learning machine
一种带有L1/2正则化器的极限学习机剪枝算法
- DOI:
10.1631/jzus.c1300197 - 发表时间:
2014-02 - 期刊:
- 影响因子:0
- 作者:
Wei Wu;Wen-yu Yang;Qin-wei Fan;Jian Wang - 通讯作者:
Jian Wang
A Novel MapReduce Framework for Improving Security of Cloud Computing
一种提高云计算安全性的新型MapReduce框架
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Junyi Deng;Yanheng Liu;Jian Wang;Lin Li - 通讯作者:
Lin Li
Effects of B on the segregation of Mo at the Fe-Cr-Ni Sigma 5(210) grain boundary
B对Fe-Cr-Ni Sigma 5(210)晶界Mo偏析的影响
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
Jianguo Li;Caili Zhang;Xu Li;Zhuxia Zhang;Nan Dong;Ying Liu;Jian Wang;Yanlu Zhang;Lixia Ling;Peide Han - 通讯作者:
Peide Han
Formal modeling and quantitative evaluation for information system survivability based on PEPA
基于PEPA的信息系统生存性形式化建模与定量评估
- DOI:
10.1016/s1005-8885(08)60090-4 - 发表时间:
2008-06 - 期刊:
- 影响因子:0
- 作者:
Huiqiang Wang;Guosheng Zhao;Jian Wang - 通讯作者:
Jian Wang
Jian Wang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('Jian Wang', 18)}}的其他基金
LEAPS-MPS: Exploring Thiophosphates as Balanced Middle-infrared Nonlinear Optical Materials
LEAPS-MPS:探索硫代磷酸盐作为平衡中红外非线性光学材料
- 批准号:
2316811 - 财政年份:2023
- 资助金额:
$ 38.8万 - 项目类别:
Standard Grant
Collaborative Research: A Metamodeling Machine Learning Framework for Multiscale Behavior of Nano-Architectured Crystalline-Amorphous Composites
协作研究:纳米结构晶体非晶复合材料多尺度行为的元建模机器学习框架
- 批准号:
2132336 - 财政年份:2022
- 资助金额:
$ 38.8万 - 项目类别:
Standard Grant
New Particle Formation in the Marine Boundary Layer: The Frequency, Mechanism, and Impact on Cloud Condensation Nuclei
海洋边界层新粒子的形成:频率、机制及其对云凝结核的影响
- 批准号:
2147747 - 财政年份:2022
- 资助金额:
$ 38.8万 - 项目类别:
Standard Grant
Genetic Dissection of Juvenile Hormone Signaling Pathways
保幼激素信号通路的基因剖析
- 批准号:
1021767 - 财政年份:2010
- 资助金额:
$ 38.8万 - 项目类别:
Standard Grant
Design Tool for Cost Effective Reduction of Noise from Enclosed Power Generators (DRONE)
经济有效地降低封闭式发电机 (DRONE) 噪音的设计工具
- 批准号:
DT/F006829/2 - 财政年份:2009
- 资助金额:
$ 38.8万 - 项目类别:
Research Grant
Design Tool for Cost Effective Reduction of Noise from Enclosed Power Generators (DRONE)
经济有效地降低封闭式发电机 (DRONE) 噪音的设计工具
- 批准号:
DT/F006829/1 - 财政年份:2008
- 资助金额:
$ 38.8万 - 项目类别:
Research Grant
相似海外基金
Identification and characterization of cancer cell states by novel computational and experimental technologies - Resubmission - 1
通过新颖的计算和实验技术识别和表征癌细胞状态 - 重新提交 - 1
- 批准号:
10650774 - 财政年份:2022
- 资助金额:
$ 38.8万 - 项目类别:
Identification and characterization of cancer cell states by novel computational and experimental technologies - Resubmission - 1
通过新颖的计算和实验技术识别和表征癌细胞状态 - 重新提交 - 1
- 批准号:
10448890 - 财政年份:2022
- 资助金额:
$ 38.8万 - 项目类别:
Experimental and Multi-Scale Damage and Healing Characterization of Asphaltic Road Materials: Experimental and Computational Studies
沥青道路材料的实验和多尺度损伤及修复特征:实验和计算研究
- 批准号:
217033-2012 - 财政年份:2013
- 资助金额:
$ 38.8万 - 项目类别:
Discovery Grants Program - Individual
Experimental and Multi-Scale Damage and Healing Characterization of Asphaltic Road Materials: Experimental and Computational Studies
沥青道路材料的实验和多尺度损伤及修复特征:实验和计算研究
- 批准号:
217033-2012 - 财政年份:2012
- 资助金额:
$ 38.8万 - 项目类别:
Discovery Grants Program - Individual
EXPERIMENTAL AND COMPUTATIONAL METHODOLOGIES FOR BIOMATERIALS CHARACTERIZATION
生物材料表征的实验和计算方法
- 批准号:
8360583 - 财政年份:2011
- 资助金额:
$ 38.8万 - 项目类别:
EXPERIMENTAL AND COMPUTATIONAL METHODOLOGIES FOR BIOMATERIALS CHARACTERIZATION
生物材料表征的实验和计算方法
- 批准号:
8168489 - 财政年份:2010
- 资助金额:
$ 38.8万 - 项目类别:
Towards an Integrated Computational-Experimental Laboratory Testing Framework for Soil Behavior Characterization and Modeling
建立土壤行为表征和建模的综合计算实验实验室测试框架
- 批准号:
0856322 - 财政年份:2009
- 资助金额:
$ 38.8万 - 项目类别:
Standard Grant
Development of Collaborative Multidisciplinary Experimental-Computational Approach for Design, Synthesis and Characterization of Novel Compounds with Potential Biological Activitie
开发具有潜在生物活性的新型化合物的设计、合成和表征的协作多学科实验计算方法
- 批准号:
0734645 - 财政年份:2007
- 资助金额:
$ 38.8万 - 项目类别:
Standard Grant
New Computational and Experimental Methods for the Structural Characterization of Organometallics
有机金属结构表征的新计算和实验方法
- 批准号:
0078515 - 财政年份:2000
- 资助金额:
$ 38.8万 - 项目类别:
Continuing Grant
Computational and Experimental Characterization of Homogeneous Catalysts
均相催化剂的计算和实验表征
- 批准号:
9618497 - 财政年份:1997
- 资助金额:
$ 38.8万 - 项目类别:
Continuing Grant