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Title: Thermal Design of Hybrid Materials Produced via Ultrasonic Additive Manufacturing

Here, ultrasonic additive manufacturing (UAM) is a technique for producing three-dimensional components through the metallurgical bonding of successive layers of metal foil. Due to its ability to process at low temperatures, UAM is uniquely suited for building hybrid materials. In this study, AA6061+water hybrid blocks with varying water cavity sizes were produced and their thermal performances were measured. Nonoptimal processing parameters were used to understand the interaction between interlayer porosity and thermal diffusivity of bulk material containing both solid and liquid. Flash thermography was used to characterize the spatial distribution of thermal diffusivity for each part. The average thermal diffusivity was successfully compared to a simplified thermal resistor model. The spatial variation in thermal properties was also correlated to specific interlayer features and related back to interactions between process characteristics and the component geometry.
Authors:
 [1] ; ORCiD logo [1] ;  [2]
  1. Oak Ridge National Lab. (ORNL),Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL),Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Materials Evaluation
Additional Journal Information:
Journal Volume: 76; Journal Issue: 4; Journal ID: ISSN 0025-5327
Publisher:
American Society for Nondestructive Testing
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1462894

Plotkowski, Alex J., Dinwiddie, Ralph Barton, and Babu, Sudarsanam Suresh. Thermal Design of Hybrid Materials Produced via Ultrasonic Additive Manufacturing. United States: N. p., Web.
Plotkowski, Alex J., Dinwiddie, Ralph Barton, & Babu, Sudarsanam Suresh. Thermal Design of Hybrid Materials Produced via Ultrasonic Additive Manufacturing. United States.
Plotkowski, Alex J., Dinwiddie, Ralph Barton, and Babu, Sudarsanam Suresh. 2018. "Thermal Design of Hybrid Materials Produced via Ultrasonic Additive Manufacturing". United States. doi:. https://www.osti.gov/servlets/purl/1462894.
@article{osti_1462894,
title = {Thermal Design of Hybrid Materials Produced via Ultrasonic Additive Manufacturing},
author = {Plotkowski, Alex J. and Dinwiddie, Ralph Barton and Babu, Sudarsanam Suresh},
abstractNote = {Here, ultrasonic additive manufacturing (UAM) is a technique for producing three-dimensional components through the metallurgical bonding of successive layers of metal foil. Due to its ability to process at low temperatures, UAM is uniquely suited for building hybrid materials. In this study, AA6061+water hybrid blocks with varying water cavity sizes were produced and their thermal performances were measured. Nonoptimal processing parameters were used to understand the interaction between interlayer porosity and thermal diffusivity of bulk material containing both solid and liquid. Flash thermography was used to characterize the spatial distribution of thermal diffusivity for each part. The average thermal diffusivity was successfully compared to a simplified thermal resistor model. The spatial variation in thermal properties was also correlated to specific interlayer features and related back to interactions between process characteristics and the component geometry.},
doi = {},
journal = {Materials Evaluation},
number = 4,
volume = 76,
place = {United States},
year = {2018},
month = {4}
}