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通过火花等离子烧结由机械合金化粉末制备的因瓦合金/碳化钨复合坯块。

Invar/WC Composite Compacts Obtained by Spark Plasma Sintering from Mechanically Alloyed Powders.

作者信息

Prica Călin-Virgiliu, Marinca Traian Florin, Neamțu Bogdan Viorel, Sechel Argentina Niculina, Popa Florin, Jozsa Elekes Marton, Chicinaș Ionel

机构信息

Materials Science and Engineering Department, Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 103-106, Muncii Ave, 400641 Cluj-Napoca, Romania.

Universal Alloy Corporation, Dumbravita 244A, 437145 Maramures, Romania.

出版信息

Materials (Basel). 2022 Sep 27;15(19):6714. doi: 10.3390/ma15196714.

DOI:10.3390/ma15196714
PMID:36234052
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9570978/
Abstract

The composite materials are used on an increasingly large scale in top fields, such as the automotive, aerospace, and nuclear industries, due to the combination of the specific properties of the composite components. Invar/WC nanocrystalline composite compacts were successfully obtained by spark plasma sintering from mechanical milled composite powder. The influence of the amount of tungsten carbide (WC) on sintering, coefficient of thermal expansion (CTE), and hardness has been investigated. The relative density and hardness of Invar/WC composite compacts increases with increasing the WC content up to 10 vol.%. At higher amount of WC (15% vol.), the relative density and hardness of the Invar/WC composite compacts decreases. The temperature up to which CTE remains at a low value (0.6-1) × 10 °C is influenced by the WC content and decreases with the WC amount of increase.

摘要

由于复合部件的特定性能相结合，复合材料在汽车、航空航天和核工业等顶级领域的应用规模越来越大。通过对机械研磨的复合粉末进行放电等离子烧结，成功制备了因瓦合金/碳化钨（Invar/WC）纳米晶复合块体。研究了碳化钨（WC）含量对烧结、热膨胀系数（CTE）和硬度的影响。Invar/WC复合块体的相对密度和硬度随着WC含量增加至10体积%而增加。当WC含量更高（15体积%）时，Invar/WC复合块体的相对密度和硬度降低。CTE保持在低值（0.6 - 1）×10℃的温度受WC含量影响，并随着WC含量增加而降低。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/408d7bd76b9b/materials-15-06714-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/72c72398593d/materials-15-06714-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/8f003aa284a6/materials-15-06714-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/df8fddd79337/materials-15-06714-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/413a93e3fa38/materials-15-06714-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/a1f3bc1ac8f1/materials-15-06714-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/ddf4cd3cd989/materials-15-06714-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/c6be99b8ec18/materials-15-06714-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/408d7bd76b9b/materials-15-06714-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/72c72398593d/materials-15-06714-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/8f003aa284a6/materials-15-06714-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/df8fddd79337/materials-15-06714-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/413a93e3fa38/materials-15-06714-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/a1f3bc1ac8f1/materials-15-06714-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/ddf4cd3cd989/materials-15-06714-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/c6be99b8ec18/materials-15-06714-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5dc2/9570978/408d7bd76b9b/materials-15-06714-g008.jpg

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本文引用的文献

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2
Effect of rare earth on the microstructures and properties of a low expansion superalloy.稀土对一种低膨胀高温合金微观结构及性能的影响。
Micron. 2002;33(6):575-80. doi: 10.1016/s0968-4328(02)00015-x.
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Strengthening of the Fe-Ni Invar Alloy Through Chromium.通过铬强化铁镍因瓦合金。
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