Collaborative Research: DMREF: Simulation-Informed Models for Amorphous Metal Additive Manufacturing
合作研究:DMREF:非晶金属增材制造的仿真模型
基本信息
- 批准号:2323718
- 负责人:
- 金额:$ 70万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-10-01 至 2027-09-30
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Non-technical Description Additive manufacturing of amorphous metals is a potentially transformative technology for printing three-dimensional parts with superior strength and toughness. Since amorphous metals solidify without adopting a crystal structure, they do not form crystalline defects that can limit part performance. While the high cooling rates associated with using a laser to deposit metal on a surface are favorable for avoiding crystallization, the scanning of the laser can lead to subsequent crystallization and variations in properties from one location to another. These issues currently limit the technique to small scale and specialty parts. To overcome this limitation, machine learning approaches will derive meaningful measures of material structure from electron nanodiffraction and simulation data. Upon this foundation, the research team will build simulation-informed models, tools that will predict how processing gives rise to the strength and toughness of the resulting materials. These models will be tested by direct comparison to experiment, laying the scientific groundwork for computational design tools for additive manufacturing of amorphous metals. Concurrently, the three universities engaged in this research will form a learning community to support graduate student professional development in online communication. This community will distill and disseminate the investigators' experiences developing online content for courses, engaging in public communication, and building outreach programs for underserved communities. The modules developed will teach tomorrow’s researchers how to effectively engage diverse audiences of various ages. Taken together, the proposed work supports national priorities in advanced manufacturing technology and workforce development, particularly at the intersection with mathematical methods and data science.Technical Description This DMREF project will develop the underlying materials science and computational tools to enable design of additively manufactured amorphous metals with desired mechanical properties, including strength and toughness. Amorphous metals, also termed metallic glasses, have potential as a transformative material for additive manufacturing applications. Unlike crystalline materials that solidify through the growth of anisotropic grains, typically resulting in grain boundaries and complex textures, rapid cooling causes metallic glasses to solidify without crystal structure. Amorphous metal additive manufacturing is promising both for superior structural homogeneity compared to crystals and for overcoming cooling-rate limitations for casting larger structures. However, reheating associated with layer-by-layer processing results in material with a complex thermal history and spatially varying mechanical properties. The simulation-informed modeling undertaken by the research team is the first step toward a simultaneous design approach for achieving target materials properties and performance. This approach will couple processing by direct laser deposition with high-fidelity physical models. Machine learning will be used to quantify key order parameters suitable for predicting mechanical properties from nanometer-resolution electron nanodiffraction and atomistic simulation data. Solving this data fusion and inference problem will relate experimental and simulation data on differing scales to structural order parameters in robust ways. From these, the researchers will build simulation-informed models, continuum numerical tools that will capture how processing gives rise to the strength and toughness of the resulting materials. Validation will be achieved by direct comparison to ex situ and in situ mechanical testing. Uncertainty quantification will be included in these models a priori.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
非技术描述非晶金属的增材制造是一种潜在的变革性技术,可用于打印具有上级强度和韧性的三维零件。由于非晶态金属在固化时没有采用晶体结构,因此它们不会形成可能限制部件性能的晶体缺陷。虽然与使用激光在表面上存款金属相关联的高冷却速率有利于避免结晶,但是激光的扫描可能导致随后的结晶和从一个位置到另一个位置的性质变化。这些问题目前将该技术限制在小规模和专业部件上。为了克服这一限制,机器学习方法将从电子纳米衍射和模拟数据中获得有意义的材料结构测量。在此基础上,研究团队将建立模拟知情模型,这些工具将预测加工如何提高所得材料的强度和韧性。这些模型将通过与实验的直接比较进行测试,为非晶金属增材制造的计算设计工具奠定科学基础。同时,参与这项研究的三所大学将形成一个学习社区,以支持研究生在线交流的专业发展。这个社区将提炼和传播调查人员的经验,开发在线课程内容,参与公共交流,并为服务不足的社区建立外展计划。开发的模块将教会未来的研究人员如何有效地吸引不同年龄的不同受众。总的来说,拟议的工作支持国家在先进制造技术和劳动力发展方面的优先事项,特别是在数学方法和数据科学的交叉领域。技术描述该DMREF项目将开发基础材料科学和计算工具,以实现具有所需机械性能(包括强度和韧性)的增材制造非晶态金属的设计。非晶态金属,也称为金属玻璃,具有作为增材制造应用的变革性材料的潜力。与通过各向异性晶粒的生长而固化的晶体材料不同,通常导致晶界和复杂的纹理,快速冷却导致金属玻璃固化而没有晶体结构。 非晶金属增材制造在与晶体相比上级结构均匀性和克服铸造较大结构的冷却速率限制方面都是有希望的。然而,与逐层处理相关的再加热导致材料具有复杂的热历史和空间变化的机械性能。研究团队进行的模拟建模是实现目标材料特性和性能的同步设计方法的第一步。这种方法将通过直接激光沉积与高保真物理模型耦合处理。机器学习将用于量化关键的有序参数,这些参数适用于从纳米分辨率电子纳米衍射和原子模拟数据中预测机械性能。解决这一数据融合和推理问题将使不同尺度上的实验和仿真数据与结构序参量以稳健的方式相关联。从这些,研究人员将建立模拟知情的模型,连续数值工具,将捕捉如何处理产生的材料的强度和韧性。将通过与非原位和原位机械测试的直接比较来实现确认。该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。
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)
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Michael Falk其他文献
New characterizations of multivariate Max-domain of attraction and D-Norms
多元最大吸引力域和 D 范数的新表征
- DOI:
10.1007/s10687-021-00416-4 - 发表时间:
2021 - 期刊:
- 影响因子:1.3
- 作者:
Michael Falk;T. Fuller - 通讯作者:
T. Fuller
Unlocking the Strengthening Potential of Magnesium Alloys Using Deformation-Induced Clustering and Precipitation
利用变形诱导聚集和沉淀释放镁合金的强化潜力
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
Suhas Eswarappa Prameela;Taisuke Sasaki;Peng Yi;Michael Falk;Kazuhiro Hono;Timothy P. Weihs - 通讯作者:
Timothy P. Weihs
The Min-characteristic Function: Characterizing Distributions by Their Min-linear Projections
- DOI:
10.1007/s13171-019-00184-1 - 发表时间:
2019-11-25 - 期刊:
- 影响因子:0.500
- 作者:
Michael Falk;Gilles Stupfler - 通讯作者:
Gilles Stupfler
LAN of extreme order statistics
- DOI:
10.1007/bf01856542 - 发表时间:
1995-12-01 - 期刊:
- 影响因子:0.600
- 作者:
Michael Falk - 通讯作者:
Michael Falk
Making Connections: Network Analysis, the Bildungsroman and the World of The Absentee
建立联系:网络分析、成长小说和缺席者的世界
- DOI:
10.1080/20512856.2016.1244909 - 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
Michael Falk - 通讯作者:
Michael Falk
Michael Falk的其他文献
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{{ truncateString('Michael Falk', 18)}}的其他基金
Excess Vacancy Enabled Transformations in Light Metal Alloys
过剩的空位促进了轻金属合金的转变
- 批准号:
2320355 - 财政年份:2023
- 资助金额:
$ 70万 - 项目类别:
Continuing Grant
Baltimore Online Algebra for High School Students in Technology
巴尔的摩技术高中生在线代数
- 批准号:
2005790 - 财政年份:2020
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$ 70万 - 项目类别:
Standard Grant
Collaborative Research: Multiscale Modeling of Amorphous Solids - Energy Landscapes to Failure Prediction
合作研究:非晶固体的多尺度建模 - 能源景观到故障预测
- 批准号:
1910066 - 财政年份:2019
- 资助金额:
$ 70万 - 项目类别:
Continuing Grant
Collaborative Research: Connecting Atomistic and Continuum Amorphous Solid Mechanics via Non-equilibrium Thermodynamics
合作研究:通过非平衡热力学连接原子和连续非晶固体力学
- 批准号:
1408685 - 财政年份:2014
- 资助金额:
$ 70万 - 项目类别:
Standard Grant
STEM Achievement in Baltimore Elementary Schools (SABES)
巴尔的摩小学的 STEM 成就 (SABES)
- 批准号:
1237992 - 财政年份:2012
- 资助金额:
$ 70万 - 项目类别:
Continuing Grant
Research Initiation Grant: Integrating Computation into the Materials Science and Engineering Core
研究启动资助:将计算融入材料科学与工程核心
- 批准号:
1137006 - 财政年份:2011
- 资助金额:
$ 70万 - 项目类别:
Standard Grant
Collaborative Research: CDI-Type I: Meta-Codes for Computational Kinetics
合作研究:CDI-Type I:计算动力学元代码
- 批准号:
1027765 - 财政年份:2010
- 资助金额:
$ 70万 - 项目类别:
Standard Grant
Theory and Simulation of the Transition from Amorphous to Nanocrystalline Mechanical Response
非晶态到纳米晶态机械响应转变的理论与模拟
- 批准号:
0808704 - 财政年份:2009
- 资助金额:
$ 70万 - 项目类别:
Continuing Grant
Extended Time Scale Simulation Studies of Nanoscale Friction
纳米级摩擦的延长时间尺度模拟研究
- 批准号:
0926111 - 财政年份:2009
- 资助金额:
$ 70万 - 项目类别:
Standard Grant
Fundamental Simulation Studies of Mixing at Sliding Interfaces
滑动界面混合的基础模拟研究
- 批准号:
0510163 - 财政年份:2005
- 资助金额:
$ 70万 - 项目类别:
Standard Grant
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