强流脉冲电子束辐照机械合金化Al-Zr涂层的微观结构与性能

Microstructure and Properties of Mechanical Alloying Al-Zr Coating by High Current Pulsed Electron Beam Irradiation.

作者信息

Li Xiangcheng, Liu Huiru, Tian Nana, Zhang Conglin, Lyu Peng, Guan Qingfeng

机构信息

School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.

School of Material Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China.

出版信息

Nanomaterials (Basel). 2020 Nov 30;10(12):2398. doi: 10.3390/nano10122398.

DOI:10.3390/nano10122398

PMID:33266205

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7759798/

Abstract

The "HOPE-I" type high-current pulsed electron beam (HCPEB) equipment was used to irradiate the pure aluminum material with Zr coating preset by ball milling to realize the alloying of a Zr-Al coating surface. The microstructure and phase analysis were conducted by XRD, SEM, and TEM. The experimental results show that after Zr alloying on the Al surface by HCPEB, a layer of 15 μm was formed on the surface of the sample, which was mainly composed of Zr and Al-Zr intermetallic compounds. A large number of AlZr (Ll2) particles was uniformly distributed in the alloyed layer, and the Al grains were obviously refined. In addition, the surface hardness and corrosion resistance of the samples were improved significantly after HCPEB irradiation.

摘要

采用“HOPE-I”型强流脉冲电子束（HCPEB）设备对经球磨预置Zr涂层的纯铝材料进行辐照，以实现Zr-Al涂层表面合金化。通过X射线衍射仪（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行微观结构和相分析。实验结果表明，经HCPEB处理使Al表面Zr合金化后，样品表面形成了一层15μm厚的层，其主要由Zr和Al-Zr金属间化合物组成。大量的AlZr（Ll2）颗粒均匀分布在合金层中，Al晶粒明显细化。此外，经HCPEB辐照后，样品的表面硬度和耐腐蚀性显著提高。