Restricted Research - Award List, Note/Discussion Page
Fiscal Year: 2023
1527 The University of Texas at Arlington (143415)
Principal Investigator: Narges Shayesteh,narges.shayesteh@uta.edu,(817) 272-2603
Total Amount of Contract, Award, or Gift (Annual before 2011): $ 582,358
Exceeds $250,000 (Is it flagged?): Yes
Start and End Dates: 5/1/23 - 4/30/28
Restricted Research: YES
Academic Discipline: Mechanical & Aerospace Engineering
Department, Center, School, or Institute: none
Title of Contract, Award, or Gift: CAREER: Understanding the Fundamental Mechanisms that of Layerwise Rolling and Layerwise Sealing of Tungsten during Additive Manufacturing
Name of Granting or Contracting Agency/Entity:
National Science Foundation (NSF)
CFDA Link: NSF
47.041
Program Title:
NSF CAREER
CFDA Linked: Engineering Grants
Note:
(SAM Category 1.1.3.) This project will explore a new approach towards pushing the performance and operating temperature limits of pure tungsten (W) materials through performing layerwise rolling and layerwise sealing during additive manufacturing (AM), and will elucidate the mechanisms that control the subsequent dislocation evolution, structure formation, transition temperatures, and mechanical properties. An emphasis will be given to the involvement of diverse perspectives in the project, as it can open the door to creative solutions and amplify the dissemination of research findings to a wider public. Supported by preliminary results, the overall hypothesis is that this novel fabrication technique, referred to as RSAM, interfere dislocation phenomena and change the mechanisms that govern the evolution of structure and properties in AMed W, and if well studied, it can yield a uniform refined structure with a high density of dislocation sources at or near crack tip and hence ultra-high performance over a wider range of operating temperatures. This project is of significance as precise knowledge of the layerwise methodology help design robust and reliable W-based devices for a broad range of cross-cutting technologies, including wing leading edge systems, solar probes, and nuclear thermal propulsion, all of which are critical to advancing national prosperity and welfare.
Discussion: No discussion notes