Scheil ternary projection (STeP) diagrams for designing additively manufactured functionally graded metals
Source abstract
Abstract
Functionally graded metals fabricated using high-temperature additive manufacturing can form intermetallics that fracture during printing due to thermal stresses generated by the heat source. To address this problem, we introduce a new class of non-equilibrium phase diagrams, termed Scheil Ternary Projection (STeP) diagrams, for designing optimal composition gradients that avoid brittle phases. Using the Fe-Cr-Al ternary as a model system, we compare the phase fields in equilibrium and STeP diagrams to show that intermetallic phase fields are dramatically expanded under the rapid solidification conditions in melt-based additive manufacturing, an important effect that must be accounted for when designing composition gradients.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Intermetallics and Advanced Alloy Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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