SBIR Phase I: Economical Fabrication of Bulk Metallic Glass Sheets through Roll-Stretching

SBIR 第一阶段：通过辊拉伸经济地制造块状金属玻璃板

• 批准号: 1448090
• 负责人: Evgenia Pekarskaya
• 金额: $ 14.99万
• 依托单位: Supercool Metals LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1448090&HistoricalAwards=false
• 关键词: SBIR; Phase; Economical; Fabrication; Bulk

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project is that it will provide the metal manufacturing industry with bulk metallic glass (BMG) sheets. BMGs are fundamentally different from, and advantageous to, crystalline metals, as they are stronger than most crystalline metals but at the same time shapeable like plastics. The key to industrializing BMGs is providing a practical feedstock material, such as BMG sheets, with which manufactures can use BMGs unique processability to fabricate complex shapes at highest precision and ease through thermoplastic forming (TPF) methods. A successful outcome of proposed research will empower manufacturers to make use of BMGs much more broadly and effectively, as BMG sheets will bridge the gap between currently expensive, customized BMG components of limited geometrical variety, and affordable, standardized BMG feedstock material in the future. Overall, the proposed work will lay a critical foundation to enable much broader commercial application of BMGs, such as in Biomedical, Nano-imprint, Electronic casing, Defense, Aerospace, or Automotive, and open an opportunity for US manufacturing to be at the center of this new manufacturing paradigm.This project evaluates the recent scientific discovery of TPF based roll-stretching of BMGs as a low force deformation method. We expect our findings to lead to a better understanding of TPF-based processes for BMGs. Specifically for TPF-based sheet fabrication, proposed work will reveal the process stability and how stability is affected by processing parameters. Proposed research will also determine the effects of TPF-based processing on the mechanical properties of the BMG and will help identify suitable BMG types for roll-stretching. At the same time, our study will provide detailed insights into commercial feasibility of BMG sheets. Process viability will be evaluated considering processing time, process robustness and repeatability, dimensional accuracy, surface finish, capital investment and material cost. The identification of processing parameters and process requirements such as temperature gradients and deformation conditions required for a high stability which is quantified in the sheet thickness variation will build the foundation for the design and realization of a commercially viable roll-stretch process and apparatus. In addition, proposed work will also enhance the theoretical understanding of roll-stretching which lay the foundation for a predictable and quantitative model description of a new material and processing paradigm.

这项小型企业创新研究（SBIR）I阶段项目的更广泛的影响/商业潜力是，它将为金属制造业提供散装的金属玻璃（BMG）床单。 BMG与晶体金属的根本不同，并且有利，因为它们比大多数晶体金属强，但同时也像塑料一样可调。工业化BMG的关键是提供一种实用的原料材料，例如BMG板，生产商可以使用BMG独特的加工性来以最高精度制造复杂形状，并通过热塑性形成（TPF）方法轻松自如。拟议的研究的成功结果将使制造商更加广泛，有效地利用BMG，因为BMG纸将弥合当前昂贵的，定制的BMG组件之间的差距有限的几何多样性，以及负担得起的，负担得起的标准化的BMG BMG原料材料。 Overall, the proposed work will lay a critical foundation to enable much broader commercial application of BMGs, such as in Biomedical, Nano-imprint, Electronic casing, Defense, Aerospace, or Automotive, and open an opportunity for US manufacturing to be at the center of this new manufacturing paradigm.This project evaluates the recent scientific discovery of TPF based roll-stretching of BMGs as a low force deformation method.我们希望我们的发现能够更好地理解BMG的基于TPF的过程。建议的工作专门针对基于TPF的表格制造，将揭示过程稳定性以及处理参数如何影响稳定性。拟议的研究还将确定基于TPF的处理对BMG机械性能的影响，并将有助于确定合适的BMG类型用于滚动拉伸。同时，我们的研究将为BMG表的商业可行性提供详细的见解。考虑处理时间，过程鲁棒性和可重复性，尺寸准确性，表面饰面，资本投资和材料成本，将评估过程生存能力。识别处理参数和过程需求，例如温度梯度和高稳定性所需的变形条件，在板厚厚度变化中进行了量化，将为设计和实现商业上可行的侧面滚动过程和设备的设计和实现奠定基础。此外，拟议的工作还将增强对卷拉伸的理论理解，这为新材料和加工范式的可预测和定量模型描述奠定了基础。