论文摘要
The surface of AISI 1045 steel specimens was modified via two duplex surface treatments of（i） titanium diffusion coating followed by plasma nitriding（Ti–PN） and（ii） plasma nitriding followed by titanium diffusion coating（PN–Ti）. A comparative study on the microstructure and wear properties of the fabricated TiN coatings was conducted. A scanning electron microscope equipped with energy-dispersive X-ray spectroscopy, X-ray diffractometer（XRD）, and pin-on-disk wear test was utilized to evaluate the microstructures, phases, and wear properties of the coatings. XRD patterns of duplex-treated specimens illustrated that the modified layer consisted of nitride and carbo-nitride phases such as TiN and TiC0.7N0.3. The results also showed that Ti–PN treatment led to a low friction coefficient and the lowest wear factors, as compared with the PN–Ti treatment. Oxidation and mild fatigue fracture wear were found to be the main wear mechanism of the Ti–PN coating. The wear mechanism in the PN–Ti specimen involved a higher oxidative wear regime followed by plastic deformation wear regimes.
论文目录
文章来源
类型: 期刊论文
作者: Farahnaz Haftlang,Ali Habibolahzadeh
来源: Acta Metallurgica Sinica(English Letters) 2019年10期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 金属学及金属工艺
单位: School of Metallurgy and Materials Engineering, College of Engineering,University of Tehran,Department of Metallurgy and Materials Engineering,Faculty of Engineering,Semnan University
基金: Semnan University for financial support of this research
分类号: TG174.4;TG142.1
页码: 1227-1236
总页数: 10
文件大小: 6039K
下载量: 4