Effect of hot isostatic pressing on the microstructure of EBM-fabricated TC11 alloy
Source abstract
Abstract
This study investigates the effect of hot isostatic pressing (HIP) on the microstructure, variant selection, and slip behavior of electron beam powder bed fused TC11 alloy. HIP achieved near-full densification and weakened the strong solidification texture, reducing the maximum α-phase pole intensity from 25.24 to 18.14, while the β fraction increased slightly from 0.3% to 2.2 % . The quantitative variant selection index decreased from 0.216 to 0.195, indicating a shift toward equilibrium-oriented variant distribution. Furthermore, HIP decreased the average Schmid factor for basal slip from 0.34 to 0.33, but increased that for prismatic slip from 0.30 to 0.31. The weakened texture and reduced variant selection promote prismatic slip activation and deformation homogeneity. These microstructural transitions provide a mechanistic explanation for the typical post-HIP trade-off of slightly reduced strength and notably enhanced ductility in EB-PBF TC11.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal and Thin Film Mechanics · Advanced materials and composites · Powder Metallurgy Techniques and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
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