# Aging effects of dodecagonal quasicrystal formed in Mn-Cr-Ni-Si alloys

## TL;DR

This study investigates the formation and aging effects of dodecagonal quasicrystals in Mn-Cr-Ni-Si alloys at 600 and 700°C, identifying optimal aging conditions for high-quality quasicrystal synthesis.

## Contribution

It provides a detailed analysis of the aging process and structural quality of Mn-Cr-Ni-Si dodecagonal quasicrystals, including growth modeling and diffraction pattern analysis.

## Key findings

- Aging at 600°C for 100 hours yields the best structural quality.
- The growth process follows Johnson-Mehl-Avrami kinetics.
- Structural distortion analysis guides optimal aging conditions.

## Abstract

The formation of Mn-Cr-Ni-Si dodecagonal quasicrystal has been studied at 600 and 700 C. The growth process of the quasicrystal from as-cast beta-Mn phase was explained by Johnson-Mehl-Avrami equation. In order to evaluate structural quality of the quasicrystal, distortion in the diffraction pattern observed along the 12-fold axis was analyzed. This analysis indicated that the aging at 600 C for 100 h is the best condition to synthesize the quasicrystal.

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Source: https://tomesphere.com/paper/1702.02266