A combined multi-phase-field/discrete-element method for sintering of blended elemental powders

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As a method for producing alloy parts by powder metallurgy, blended elemental powder processing has been developed to attain cost-saving and reducing forming load. It can also be used to fabricate heterogeneous materials, which may result in enhanced strength and toughness. The formation of heterogeneous microstructure, however, is affected by the size, the amount, and the distribution of the elemental powder particles, and they should be controlled to obtain the optimized mechanical properties. In this study, a method for simulating the diffusion of elements and the phase transformation during sintering is proposed. As a model system, a binary eutectic alloy is assumed, and the interdiffusion and the liquid formation between different two particles are simulated by a multi-phase-field method for sintering. The discrete-element method is also conducted to compute the sintering shrinkage with taking account of the contact area and the sintering force, obtained from the phase-field.

Original languageEnglish
Title of host publicationPowder Metallurgy and Particulate Materials - 2021
Subtitle of host publicationProceedings of the 2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021
PublisherMetal Powder Industries Federation
Pages15-21
Number of pages7
ISBN (Electronic)9781943694273
Publication statusPublished - 2020
Event2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021 - Orlando, Virtual, United States
Duration: Jun 20 2021Jun 23 2021

Publication series

NamePowder Metallurgy and Particulate Materials - 2021: Proceedings of the 2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021

Conference

Conference2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021
Country/TerritoryUnited States
CityOrlando, Virtual
Period6/20/216/23/21

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Metals and Alloys

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