Synthesis and Properties of Recycled Fe-Al Based Multiphase Composites

再生铁铝基多相复合材料的合成与性能

基本信息

批准号：
11650706
负责人：
KYOSUKE Yoshimi
金额：
$ 2.24万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650706/
关键词：
iron aluminum intermetallic compound atomic vacancy recycle earth environment チタン銅水素吸蔵合金

项目摘要

Mesoporous FeAl intermetallic compound formed by vacancy clusteringIn this study, it was found that a large quantity of micro pores of several nanometers are generated near and interior to the ribbons of B2-type FeAl intermetallic compound produced by a rapid solidification technique when the ribbons are annealed around 723 K. Furthermore, in this study, the morphology and crystallography of the nanopores was clarified by scanning and transmission electron microscopy, and atomic force microscopy. Moreover, considerations based on energetics concerning vacancy clustering was given by thermal analysis.Microstructure and High Temperature Oxidation Resistance of Recycled Fe-Al alloysUsing ground sludge of bearing steels yielded when bearings are manufactured and pellets of waste aluminum cans, recycled Fe-Al alloys were produced. In this study, microstructure of the produced alloys was observed by scanning electron microscopy, constituent phases therein were indentified by X-ray diffractometry, high temperature oxidation resistance of the alloys was examined, and then the potential of the recycled Fe-Al alloys was discussed. Consequently, the recycled Fe-Al alloys exhibit excellent oxidation resistance at high temperatures, which comparable to binary Fe-Al intermetallic compounds, indicating it is possible to produce highly value-added Fe-Al alloys by utilizing scraps.Theoretical Study on Mechanical Properties of Aluminides and SilicidesIn this study, elastic stability of dislocations was investigated for FeAl and Fe_3Si in order to give some interpretations to mechanical properties of the compounds. Furthermore, a semi-empirical model was proposed to predict the cleavage resistance of the compounds, and this model was found to be very useful to do that by comparing several experimental data previously published.

在这项研究中，由空位聚类形成的介孔腹腔金属化合物形成，发现在附近和内部生成大量几种微孔的几种微孔，并在内部和内部生成B2型羽毛岩层的内部和内部，该金属化合物由快速凝固技术产生的核糖层在723 k左右的NERIBON左右，在这一研究中，这是在这一研究中，在这一研究中，在这一研究中，弗尔（Furthereal）的NER和晶体均具有良好的水晶。通过扫描和透射电子显微镜和原子力显微镜阐明。此外，通过热分析给出了基于能量方面的空缺聚类的考虑。当生产轴承的轴承和废物铝罐生产时产生的轴承钢的回收的Fe-Al合金污泥的高温和高温氧化耐药性，产生了回收的Fe-Al铝，产生了回收的Fe-Al铝。在这项研究中，通过扫描电子显微镜观察到产生的合金的显微结构，其中通过X射线衍射测量法辨认了其中的组成阶段，研究了合金的高温氧化耐药性，然后讨论了回收的Fe-Al合金的潜力。因此，回收的Fe-Al合金在高温下表现出极好的氧化耐药性，与二进制的Fe-Al al级金属间化合物相媲美，表明可以通过使用碎屑来产生高增值的Fe-Al合金。通过对Aluminides和Aluminides的机械性稳定性进行诸如抗氧化胜地的特性，可以通过碎屑进行污染，并具有弹性的效果。对化合物的机械性能的解释。此外，提出了一个半经验模型来预测这些化合物的裂解抗性，并且发现该模型可以通过比较先前发布的几个实验数据来做到这一点。