The microstructure and properties of nanostructured Cr-Al alloying layer fabricated by high-current pulsed electron beam
作者： Conglin Zhang , Peng Lv , Haidi Xia , Zirun Yang , Sergey Konovalov
DOI: 10.1016/J.VACUUM.2019.06.022
关键词:
摘要: Abstract In this paper, the feasibility of an innovative surface alloying technique was successfully demonstrated in which Cr-Al layer fabricated on Al substrate by high current pulsed electron beam (HCPEB) to enhance properties. The microstructures were investigated means X-ray diffraction (XRD), scanning microscope (SEM) and transmission (TEM). microhardness corrosion resistance also examined. After HCPEB irradiation, a mixture Cr elements formed, generated substrate. Meanwhile, abundant nanostructured intermetallic compounds, such as Al8Cr5, AlCr2 Al13Cr2, together with ultrafine particles (Cr) solid solution, formed layers. addition, both dramatically improved due addition element modified microstructure.
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