Iridium-based refractory superalloys by pulse electric current sintering process: Part 1. Elemental powder

C. Huang; Y. Yamabe-Mitarai; H. Harada

doi:10.1361/105994901770344485

Iridium-based refractory superalloys by pulse electric current sintering process: Part 1. Elemental powder

C. Huang, Y. Yamabe-Mitarai, H. Harada

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Pulse electric current sintering (PECS) was tried as a novel powder metallurgy (PM) process for five Ir-based elemental powder mixtures. Sintering was carried out at 1800 °C for 4 h for all the samples. Specimens with a relative density, more than 90% theoretical density, were obtained after sintering. More than two phases were found; however, a single phase (L1₂ or B2) was expected, according to the phase diagram. The densification mechanism is discussed briefly, and remaining problems are presented.

Original language	English
Pages (from-to)	629-634
Number of pages	6
Journal	Journal of Materials Engineering and Performance
Volume	10
Issue number	6
DOIs	https://doi.org/10.1361/105994901770344485
Publication status	Published - 2001 Dec 1
Externally published	Yes

Keywords

Density
Elemental powder
Ir-based refractory superalloy
Microstructure
Phase
Pore
Powder metallurgy
Pulse electric current sintering

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1361/105994901770344485

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abstract = "Pulse electric current sintering (PECS) was tried as a novel powder metallurgy (PM) process for five Ir-based elemental powder mixtures. Sintering was carried out at 1800 °C for 4 h for all the samples. Specimens with a relative density, more than 90% theoretical density, were obtained after sintering. More than two phases were found; however, a single phase (L12 or B2) was expected, according to the phase diagram. The densification mechanism is discussed briefly, and remaining problems are presented.",

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AU - Harada, H.

PY - 2001/12/1

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AB - Pulse electric current sintering (PECS) was tried as a novel powder metallurgy (PM) process for five Ir-based elemental powder mixtures. Sintering was carried out at 1800 °C for 4 h for all the samples. Specimens with a relative density, more than 90% theoretical density, were obtained after sintering. More than two phases were found; however, a single phase (L12 or B2) was expected, according to the phase diagram. The densification mechanism is discussed briefly, and remaining problems are presented.

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KW - Microstructure

KW - Phase

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Iridium-based refractory superalloys by pulse electric current sintering process: Part 1. Elemental powder

Abstract

Keywords

ASJC Scopus subject areas

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