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氧分压对真空烧结Fe40Al合金组织与性能的影响

The Effect of Oxygen Partial Pressure on Microstructure and Properties of Fe40Al Alloy Sintered under Vacuum.

作者信息

Siemiaszko Dariusz, Kowalska Beata, Jóźwik Paweł, Kwiatkowska Monika

机构信息

Department of Advanced Materials and Technologies, Faculty of Advanced Technologies and Chemistry, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland.

出版信息

Materials (Basel). 2015 Mar 31;8(4):1513-1525. doi: 10.3390/ma8041513.

DOI:10.3390/ma8041513
PMID:28788015
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5507053/
Abstract

This paper presents the results of studies on the influence of oxygen partial pressure (vacuum level in the chamber) on the properties of FeAl intermetallics. One of the problems in the application of classical methods of prepared Fe-Al intermetallic is the occurrence of oxides. Applying a vacuum during sintering should reduce this effect. In order to analyze the effect of oxygen partial pressure on sample properties, five samples were processed (by a pressure-assisted induction sintering-PAIS method) under the following pressures: 3, 8, 30, 80, and 300 mbar (corresponding to oxygen partial pressures of 0.63, 1.68, 6.3, 16.8, and 63 mbar, respectively). The chemical and phase composition, hardness, density, and microstructure observations indicate that applying a vacuum significantly impacts intermetallic samples. The compact sintered at pressure 3 mbar is characterized by the most homogeneous microstructure, the highest density, high hardness, and nearly homogeneous chemical composition.

摘要

本文介绍了关于氧分压（腔室内真空度）对FeAl金属间化合物性能影响的研究结果。制备Fe-Al金属间化合物的经典方法应用中存在的一个问题是会出现氧化物。烧结过程中采用真空应可减少这种影响。为了分析氧分压对样品性能的影响，在以下压力下（通过压力辅助感应烧结-PAIS法）处理了五个样品：3、8、30、80和300毫巴（分别对应氧分压0.63、1.68、6.3、16.8和63毫巴）。化学和相组成、硬度、密度以及微观结构观察表明，采用真空对金属间化合物样品有显著影响。在3毫巴压力下烧结的坯块具有最均匀的微观结构、最高的密度、高硬度以及近乎均匀的化学成分。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/695869121908/materials-08-01513-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/86c25759f612/materials-08-01513-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/f6f095553be3/materials-08-01513-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/e36154eb3908/materials-08-01513-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/3a58bbd65081/materials-08-01513-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/2ae60280d825/materials-08-01513-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/6add9cb4a8ad/materials-08-01513-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/8e9f9f1bd62d/materials-08-01513-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/97082034719a/materials-08-01513-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/3eaf9df005d0/materials-08-01513-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/f595a9568cee/materials-08-01513-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/606ed1067454/materials-08-01513-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/03a42394f339/materials-08-01513-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/b2581a9b8758/materials-08-01513-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/695869121908/materials-08-01513-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/86c25759f612/materials-08-01513-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/f6f095553be3/materials-08-01513-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/e36154eb3908/materials-08-01513-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/3a58bbd65081/materials-08-01513-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/2ae60280d825/materials-08-01513-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/6add9cb4a8ad/materials-08-01513-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/8e9f9f1bd62d/materials-08-01513-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/97082034719a/materials-08-01513-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/3eaf9df005d0/materials-08-01513-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/f595a9568cee/materials-08-01513-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/606ed1067454/materials-08-01513-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/03a42394f339/materials-08-01513-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/b2581a9b8758/materials-08-01513-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00f6/5507053/695869121908/materials-08-01513-g014.jpg

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