李巾杰,吴凤芳,吴冰.钛合金基体上AlCrN涂层的冲蚀磨损行为研究[J].表面技术,2019,48(2):152-158.
LI Jin-jie,WU Feng-fang,WU Bing.Erosion Wear Performance of AlCrN Coating on Titanium Alloy Substrate[J].Surface Technology,2019,48(2):152-158
钛合金基体上AlCrN涂层的冲蚀磨损行为研究
Erosion Wear Performance of AlCrN Coating on Titanium Alloy Substrate
投稿时间:2018-09-22  修订日期:2019-02-20
DOI:10.16490/j.cnki.issn.1001-3660.2019.02.022
中文关键词:  钛合金  AlCrN涂层  物理气相沉积  阴极电弧离子镀  生长缺陷  冲蚀磨损行为
英文关键词:titanium alloy  AlCrN coatings  physical vapor deposition  cathodic arc ion plating  growth detects  erosion wear behavior
基金项目:山东省自然科学基金(ZR2015EM039)
作者单位
李巾杰 山东大学 机械工程国家级实验教学示范中心 高效洁净机械制造教育部重点实验室,济南 250061 
吴凤芳 山东大学 机械工程国家级实验教学示范中心 高效洁净机械制造教育部重点实验室,济南 250061 
吴冰 山东大学 机械工程国家级实验教学示范中心 高效洁净机械制造教育部重点实验室,济南 250061 
AuthorInstitution
LI Jin-jie Key Laboratory of High Efficiency and Clean Machinery Manufacturing, Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China 
WU Feng-fang Key Laboratory of High Efficiency and Clean Machinery Manufacturing, Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China 
WU Bing Key Laboratory of High Efficiency and Clean Machinery Manufacturing, Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, China 
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中文摘要:
      目的 研究钛合金基体表面的AlCrN涂层在固体粒子冲蚀条件下的磨损性能和材料去除机制。方法 采用阴极电弧离子镀物理气相沉积技术在钛合金基体表面制备AlCrN硬质涂层。利用扫描电镜(SEM)分析冲蚀试验前后试样表面的微观形貌;利用能谱分析仪(EDS)和X射线衍射仪(XRD)分析涂层的化学成分和物相组成;利用白光干涉轮廓仪检测试样表面粗糙度和冲蚀试验后试样表面的冲蚀坑深度;利用纳米压痕仪和多功能材料表面性能测试仪测量试样的显微硬度、弹性模量和涂层与基体的结合力;利用冲蚀试验机考察高角度冲蚀条件下试样的抗冲蚀磨损性能。结果 抛光后的钛合金表面光滑,没有明显缺陷,硬度为4.29 GPa,弹性模量为141.02 Gpa。AlCrN涂层厚度约为10.5 μm,表面有大量尺寸不一的球形颗粒和圆形凹坑等生长缺陷,硬度为23.27 GPa,弹性模量为264.95 GPa,XRD图谱表明AlCrN涂层中主要存在AlN相和CrN相。在冲蚀角度90°、粒子冲击速度85 m/s和冲蚀粒子供给速率(2±0.5) g/min的条件下,AlCrN涂层的冲蚀坑深度仅为钛合金基体的1/10。通过冲蚀表面微观形貌观察与分析发现,钛合金基体表面的冲蚀磨损特征主要有冲击凹坑、挤压唇和微切削痕,AlCrN涂层表面的冲蚀磨损特征主要有微切削痕、大颗粒塑性变形和剥落坑。结论 钛合金的冲蚀磨损行为为典型的塑性材料冲蚀磨损机制。AlCrN涂层在冲蚀早期为塑性材料冲蚀磨损机制,随着冲蚀的进行,既有塑性材料冲蚀磨损机制,又有脆性材料冲蚀磨损机制。
英文摘要:
      The work aims to investigate erosion wear properties and material removal mechanisms of AlCrN coatings on ti-tanium alloy substrates under the solid particle erosion conditions. AlCrN hard coating was deposited onto titanium alloy substrates by cathodic arc ion plating physical vapor deposition (PVD). Scanning electron microscopy (SEM) was used to analyze the surface topography of samples before and after erosion test; energy dispersive spectrometer (EDS) and X-ray diffraction (XRD) were applied to analyze chemical components and phase composition; white light interference profiler was adopted to detect the surface roughness of the sample and the depth of erosion pits after the erosion test; and nano indentation and multi-functional tester for material surface properties was used to analyze harness, elastic modulus and bonding strength of simples. The performance of erosion resistance of samples were evaluated on the erosion tester under high impingement angle. The polished titanium alloy had a smooth surface with no obvious defects. The hardness and elastic modulus were 4.29 GPa and 141.02 GPa, respectively. Growth detects like particles and voids with different sizes were found on the surface of AlCrN coating with the thickness of about 10.5 μm. The hardness and elastic modulus of AlCrN coating were 23.27 GPa and 264.95 GPa, respectively. XRD pattern showed that AlCrN coating consisted of AlN phase and CrN phase. The erosion scar depth of the AlCrN coating was only 1/10 of the substrate at impingement angle of 90°, with a particle velocity of 85 m/s and a particle feed rate of 2±0.5 g/min. By observing and analyzing eroded surface morphologies, impacting pits, extruded lips and micro-cutting trace were found on the surface of titanium alloy substrate, and while micro-cutting trace, plastic deformation of large particle and spalling pits appeared on the surface of AlCrN coating. The erosion behavior of bare titanium alloys is typical plastic erosion mechanism. The erosion behavior of AlCrN coating is plastic erosion mechanism in the early stage of erosion, while both plastic erosion and brittle erosion mechanisms appear with progress of erosion.
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