High-throughput determination of tie-lines in multicomponent phase diagrams: a case of Ni–Co–Ti–Al quaternary alloy with γ/γ’ phase
NIMS author(s)
Introduction
Development of a high-throughput method for acquiring large tie-line composition datasets, enabling the rapid construction of phase diagrams for multicomponent systems
We developed a method for automatically acquiring a large number of tie-line composition datasets from a single sample by applying a new analytical technique—which extracts the compositions of matrix and precipitate phases from EPMA elemental maps and SEM images—to composition-gradient samples prepared by the diffusion couple method. By determining nearly 1,000 sets of γ-γ’ phase line composition data in the Ni-Co-Al-Ti quaternary system, we demonstrated a 130-fold increase in efficiency compared to conventional methods.
Fulltext and dataset(s) on Materials Data Repository (MDR)
Created at: 2026-06-27 03:07:06 +0900 Updated at: 2026-07-28 06:04:37 +0900