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首页> 外文期刊>Journal of Materials Engineering and Performance >Iridium-based refractory superalloys by pulse electric current sintering process: part 1. elemental powder
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Iridium-based refractory superalloys by pulse electric current sintering process: part 1. elemental powder

机译：脉冲电流烧结工艺的铱基耐火高温合金：第1部分。

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摘要

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℃ 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 (L1{sub}2 or B2) was expected, according to the phase diagram. The densification mechanism is discussed briefly, and remaining problems are presented.
机译：尝试使用脉冲电流烧结（PECS）作为五种铱基元素粉末混合物的新型粉末冶金（PM）工艺。所有样品均在1800℃下烧结4小时。烧结后获得相对密度高于理论密度90％的样品。发现了两个以上的阶段。但是，根据该相图，可以预期只有一个相（L1 {sub} 2或B2）。简要讨论了致密化机制，并提出了剩余的问题。

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