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2018-01)
Goulding, Ashley N.; Leung, Jonathan F.W.; Neu, Richard W.
Knowledge about the behavior of a specific materials system is concisely summarized in a Processing-Structure-Properties-Performance (PSPP) map. This is a useful tool that can effectively serve as a standard method of communication regarding the physical and chemical mechanisms that control the performance of a materials system, and gives guidance on the type of data required to accurately characterize that materials system in its entirety. This article describes a workflow to generate a map for any materials system, and then applies these steps to develop a map for Ni-base superalloy synthesized by additive manufacturing.
This article reviews the current state of the art in understanding TWinning--‐ Induced Plasticity (TWIP) steels with an emphasis on linking microstructure to the mechanical behavior through microstructure--‐aware constitutive models. A materials selection exercise is conducted to substantiate that TWIP steels are more desirable than most other materials for structural and safety components of automobiles. Gaps in the knowledge of TWIP steels that are hindering adoption for automotive applications are identified. This review concludes by suggesting fundamental research needs to promote the design of TWIP steels with improved properties and performance for structural components in automotive applications.