强流脉冲电子束诱导TC4表面Nb合金化及其性能改善

Surface Alloying and Improved Property of Nb on TC4 Induced by High Current Pulsed Electron Beam.

作者信息

Du Xueze, Tian Nana, Zhang Conglin, Lyu Peng, Cai Jie, Guan Qingfeng

机构信息

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

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

出版信息

Nanomaterials (Basel). 2021 Oct 29;11(11):2906. doi: 10.3390/nano11112906.

DOI:10.3390/nano11112906

PMID:34835669

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8621209/

Abstract

In this paper, an Nb alloying layer on a TC4 alloy was fabricated by using high-current pulsed electron beam (HCPEB) irradiation to improve surface performance. X-ray diffraction (XRD), optical microscopy (OM), laser surface microscope (LSM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the phase composition and microstructure of the surface layer. The microhardness, wear tests and corrosion resistance were also examined. The results show that after HCPEB alloying, a Nb-alloyed layer was formed with about 3.6 μm in thickness on the surface of the sample, which was mainly composed of α'-Ti martensite, β-Ti equiaxial crystals, and NbTi particles. After HCPEB irradiation, the surface hardness, wear resistance and corrosion resistance of Nb alloying layer on TC4 alloy were improved compared to the initial samples.

摘要

本文采用强流脉冲电子束（HCPEB）辐照在TC4合金表面制备了Nb合金化层，以改善其表面性能。利用X射线衍射（XRD）、光学显微镜（OM）、激光表面显微镜（LSM）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对表面层的相组成和微观结构进行了表征。还对显微硬度、磨损试验和耐腐蚀性进行了检测。结果表明，经过HCPEB合金化后，在样品表面形成了一层厚度约为3.6μm的Nb合金化层，其主要由α'-Ti马氏体、β-Ti等轴晶体和NbTi颗粒组成。与初始样品相比，经过HCPEB辐照后，TC4合金表面Nb合金化层的表面硬度、耐磨性和耐腐蚀性均有所提高。