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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing: Mechanical Behavior of Lattice Structures Produced via AM
Presentation Title Tailoring Hierarchical Material Performance Through Process Manipulation
Author(s) Bradley Howell Jared, Brad Boyce, Anthony Garland, Michael Heiden, Scott Jensen, David Moore, David Saiz, Benjamin White, Timothy Ruggles
On-Site Speaker (Planned) Bradley Howell Jared
Abstract Scope Hierarchical materials introduce a compelling design space to achieve material and structural performance regimes that are inaccessible in bulk, homogenous materials. Numerous researchers have explored an array of geometrical constructs for tuning hierarchical material properties. The presented work, however, will explore how process inputs from laser-powder bed fusion impact the mechanical performance of 316L stainless steel octet and gyroid lattice structures. The process space within which robust lattice geometries can be fabricated will be described. Relationships between process inputs and resultant strut geometry, cell geometry and structure performance will also be presented based on fringe-project microscopy, computed tomography, metallography and quasi-static compression loading. It will be demonstrated that process inputs provide an additional degree of freedom in the design and fabrication of hierarchical materials. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.
Proceedings Inclusion? Planned: At-meeting proceedings


Additive Manufacturing Laser Powder Bed Fusion Optimization for Dissolvable Supports with SS 316L
Direct Metal Laser Sintering Strategies for Fabrication of Finer Resolution Cellular Structures
Effect of Processing on Micro/Mesoscale Structures and Properties of Stainless Steel 316L Lattices
High-Throughput Screening of Additive Lattices using a Deep Neural Network
Mechanical Properties of Additively Manufactured Metal Lattices
Mesoscale Open Structures for Lightweight Structures
Microstructure and Mechanical Properties of Additively Manufactured Lattice Structures of Co-Cr-Mo Alloy
Predicting Interfacial Cracking between Solid and Lattice Support Structure during Laser Powder Bed Fusion Processing
Predicting the Response of Additively Manufactured IN625 Thin-walled Elements
Process-Aware Design of Additively Manufactured Lattice Structures
Residual Stress Mitigation in Lattice Structures Built by Laser Powder Bed Fusion
Tailoring Hierarchical Material Performance Through Process Manipulation

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