TY - GEN
T1 - A combined multi-phase-field/discrete-element method for sintering of blended elemental powders
AU - Shinagawa, Kazunari
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number JP19H02480.
Publisher Copyright:
© PowderMet 2021. All rights reserved.
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:85119487652
T3 - Powder Metallurgy and Particulate Materials - 2021: Proceedings of the 2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021
SP - 15
EP - 21
BT - Powder Metallurgy and Particulate Materials - 2021
PB - Metal Powder Industries Federation
T2 - 2021 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2021
Y2 - 20 June 2021 through 23 June 2021
ER -