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Annual Review of Materials Research

Volume 46, 2016

Microstructural Control of Additively Manufactured Metallic Materials

Abstract

In additively manufactured (AM) metallic materials, the fundamental interrelationships that exist between composition, processing, and microstructure govern these materials’ properties and potential improvements or reductions in performance. For example, by using AM, it is possible to achieve highly desirable microstructural features (e.g., highly refined precipitates) that could not otherwise be achieved by using conventional approaches. Simultaneously, opportunities exist to manage macro-level microstructural characteristics such as residual stress, porosity, and texture, the last of which might be desirable. To predictably realize optimal microstructures, it is necessary to establish a framework that integrates processing variables, alloy composition, and the resulting microstructure. Although such a framework is largely lacking for AM metallic materials, the basic scientific components of the framework exist in literature. This review considers these key components and presents them in a manner that highlights key interdependencies that would form an integrated framework to engineer microstructures using AM.

Keyword(s): additive manufacturing, characterization, composition, microstructural control, microstructural evolution, microstructure
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2016-07-01
2024-04-25
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Microstructural Control of Additively Manufactured Metallic Materials
Annual Review of Materials Research 46, 63 (2016); https://doi.org/10.1146/annurev-matsci-070115-031816
/content/journals/10.1146/annurev-matsci-070115-031816
/content/journals/10.1146/annurev-matsci-070115-031816
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