# Coupling of homogeneous and heterogeneous melting kinetics in polycrystalline materials

Source: [Coupling of homogeneous and heterogeneous melting kinetics in polycrystalline materials](<https://www.sota2.com/research/paper/68fa3a321e209131ce8c8a94>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T23:55:33.361Z

Authors: Meizhen Xiang, Yi Liao, Guomeng Li, Jun Chen

Published: 2019-04-16T01:56:07.000Z

## Abstract

Melting kinetics of polycrystalline materials is analyzed on the basis of a new model which explicitly couples homogeneous and heterogeneous melting mechanisms. The distinct feature of this approach lies in its ability to evaluate not only grain-size-distribution effects on the overall melting kinetics but also competitions between the two melting mechanisms. For the first time, we reveal the three-part structure of temperature-time-transformation diagrams for melting of polycrystalline materials, through which it is possible to determine a critical temperature across which the dominant melting mechanism switches. The critical temperature increases as the mean-grain-diameter decreases following a negative power-law. The results are qualitatively consistent with experimental observations.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1904.07397>)

[PDF](<https://arxiv.org/pdf/1904.07397.pdf>)