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放电等离子烧结制备的Al-Ti复合材料中金属间化合物的行为

Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering.

作者信息

Park Kwangjae, Kim Dasom, Kim Kyungju, Cho Seungchan, Kwon Hansang

机构信息

Department of Materials System Engineering, Pukyong National University, 365, Sinseon-ro, Nam-gu, Busan 48547, Korea.

Next Generation Materials Co., Ltd., 365, Sinseon-ro, Nam-gu, Busan 48547, Korea.

出版信息

Materials (Basel). 2019 Jan 21;12(2):331. doi: 10.3390/ma12020331.

DOI:10.3390/ma12020331
PMID:30669667
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6356306/
Abstract

In this research, we successfully fabricate high-hardness and lightweight Al-Ti composites. Al-Ti composites powders with three compositions (Al-20, 50, and 80 vol.% Ti) are mixed using ball milling and subsequently subjected to spark plasma sintering (SPS). The microstructures and phases of the Al-Ti composites are characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD) spectroscopy, and field emission-electron probe microanalysis (FE-EPMA). These tests confirm the presence of several intermetallic compounds (ICs) (Al₃Ti, Al₅Ti₂, AlTi₅) in the composites, and we are able to confirm that these ICs are produced by the reaction of Al and Ti during the SPS process. Furthermore, thermogravimetric-differential thermal analysis (TG-DTA) is used to analyze the formation behavior of the ICs. In addition, the mechanical properties of the composites are measured using their Vickers hardness and it is observed that the Al-80 vol.% Ti composite exhibits the highest hardness. Consequently, it is assumed that SPS is suitable for fabricating Al-Ti composites which represent the next-generation materials to be used in various industrial fields as high-hardness and lightweight materials.

摘要

在本研究中，我们成功制备了高硬度且轻质的铝钛复合材料。采用球磨法将三种成分（铝含量分别为20%、50%和80%（体积分数）的钛）的铝钛复合粉末进行混合，随后进行放电等离子烧结（SPS）。使用扫描电子显微镜（SEM）、X射线衍射（XRD）光谱仪和场发射电子探针微分析（FE-EPMA）对铝钛复合材料的微观结构和相进行表征。这些测试证实了复合材料中存在几种金属间化合物（ICs）（Al₃Ti、Al₅Ti₂、AlTi₅），并且我们能够确认这些金属间化合物是在SPS过程中由铝和钛反应生成的。此外，采用热重-差示热分析（TG-DTA）来分析金属间化合物的形成行为。另外，使用维氏硬度测量复合材料的力学性能，观察到铝含量为80%（体积分数）的钛复合材料具有最高硬度。因此，可以认为SPS适合制备铝钛复合材料，这类材料作为高硬度和轻质材料，代表了将用于各种工业领域的下一代材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/402d29423ede/materials-12-00331-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/a5cebc7df046/materials-12-00331-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/020250c73d81/materials-12-00331-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/6ef1080fd0ed/materials-12-00331-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/299de6e0ce2c/materials-12-00331-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/32a219c43896/materials-12-00331-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/14d1e9ae1dba/materials-12-00331-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/546b4c7dcdbf/materials-12-00331-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/7e9e47bc762f/materials-12-00331-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/a16e606adda8/materials-12-00331-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/402d29423ede/materials-12-00331-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/a5cebc7df046/materials-12-00331-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/020250c73d81/materials-12-00331-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/6ef1080fd0ed/materials-12-00331-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/299de6e0ce2c/materials-12-00331-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/32a219c43896/materials-12-00331-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/14d1e9ae1dba/materials-12-00331-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/546b4c7dcdbf/materials-12-00331-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/7e9e47bc762f/materials-12-00331-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/a16e606adda8/materials-12-00331-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8cd0/6356306/402d29423ede/materials-12-00331-g010.jpg

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