Influence of the Dispersion of La_2O_3 and LaCrO_3 on High-TemperatureOxidationofP/MFe-Cr Alloys

机译：La_2O_3和LaCrO_3的分散度对P / MFe-Cr合金高温氧化的影响

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The influence of La oxide particles in a high temperature oxidation of P/M Ferrite stainless steels was investigated. In this study, the influence of a change in the density and grain size of the base material by using the Fe-17Cr alloy made by the P/M method, and the additional amount of La_2O_3 and LaCrO_3 and the dispersion of the same La_2O_3 and LaCrO_3 were examined. It was found that the high temperature oxidation resistance improved rapidly with the disappearance of the continuous pores in relation to the rise in the density of the base material Moreover, it was found that the high temperature oxidation resistance improved remarkably by adding either of the oxide particles, and the best ratio of additional amounts of oxide particles and Cr in the base material using La_2O_3 particles.

机译：研究了La氧化物颗粒对P / M铁氧体不锈钢高温氧化的影响。在这项研究中，通过使用P / M方法制备的Fe-17Cr合金，基体材料的密度和晶粒尺寸的变化以及La_2O_3和LaCrO_3的添加量以及相同的La_2O_3和La检查了LaCrO_3。发现随着基材的密度的增加，随着连续孔的消失，高温抗氧化性迅速提高。此外，发现通过添加任一氧化物颗粒，高温抗氧化性显着提高。以及使用La_2O_3颗粒时母材中氧化物颗粒和Cr的添加量的最佳比例。

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来源
《2002 World Congress on Powder Metallurgy amp; Particulate Materials Pt.8 Jun 16-21, 2002 Orlando, FI》|2002年|p.113-122|共10页
会议地点 Orlando FL(US)
作者
Z. ISHIJIMA; H. SHIKATA;
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Hitachi Powdered Metals Co., Ltd., 520 Minoridai, Matsudo-shi, Chiba-ken, JAPAN, 270-2295;

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原文格式 PDF
正文语种 eng
中图分类冶金工业;
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Influence of the Dispersion of La_2O_3 and LaCrO_3 on High-TemperatureOxidationofP/MFe-Cr Alloys

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