| 本文已被：浏览 3627次 下载 1563次 |
码上扫一扫！ |
|
|
| 多弧离子镀TiAlSiN梯度涂层制备及切削性能 |
|
汪鹏1,2, 许昌庆3, 蔡飞1, 斯松华1,2, 张世宏1,2, 梁加刚3
|
|
1.安徽工业大学 现代表界面工程研究中心, 马鞍山 243000;2.安徽工业大学 材料科学与工程学院, 马鞍山 243000;3.安徽华菱汽车有限公司 重型专用车发动机安徽省重点实验室, 马鞍山 243000
|
|
| 摘要: |
| 针对含Si超硬涂层与基体结合强度不足，切削过程中涂层易发生剥落从而导致涂层刀具切削性能低的问题，采用离子源增强的多弧离子镀技术在硬质合金刀具上制备了不同含Si层梯度结构的TiAlSiN梯度涂层。利用XRD、SEM、OM以及切削试验探讨不同含Si层梯度结构对涂层物相、表面形貌、膜基结合强度、摩擦磨损以及切削性能的影响。结果显示：不同含Si层梯度结构的TiAlSiN涂层主要由固溶的（Ti，Al） N和（Al，Ti） N相组成。其中，低Si直接过渡的TiAlSiN涂层（S3）呈现出较高的硬度、良好的膜基结合力、较低的涂层残余应力和摩擦因数。铣削结果显示，涂层刀具的切削磨损机理主要表现为粘着磨损。当切削速度为80 m/min时，低Si过渡涂层（S3涂层）表现出更高的切削长度（925 m），显著高于S1涂层的525 m；当切削速度由80 m/min增加至110 m/min时，S3涂层切削长度增加到1650 m。对含Si刀具涂层进行梯度设计，可有效提高涂层的膜-基结合强度和涂层刀具的切削性能。 |
| 关键词: 多弧离子镀 TiAlSiN涂层 梯度涂层 切削性能 |
| DOI：10.11933/j.issn.1007-9289.20181107003 |
| 分类号:TG174.444 |
| 基金项目:安徽省自然科学基金（1808085QE131）；安徽省重点研究和开发计划专项（1804b06020370）；国家自然科学基金（51305002，51522502） |
|
| Preparation and Cutting Performance of TiAlSiN Gradient Coating by Multi-arc Ion Plating |
|
WANG Peng1,2, XU Changqing3, CAI Fei1, SI Songhua1,2, ZHANG Shihong1,2, LIANG Jiagang3
|
|
1.Reserch Center of Modern Surface and Interface Engineering, Anhui University of Technology, Ma'anshan 243000, China;2.School of Material Science and Engineering, Anhui University of Technology, Ma'anshan 243000, China;3.AnHui Province Key Laboratory of Heavy Duty Special Vehicle Engine, Anhui Hualing Automobile Co., Ltd, Ma'anshan 243000, China
|
| Abstract: |
| TiAlSiN gradient coatings with different Si containing layer structures were deposited on cemented carbide tools using ion source-enhanced multi-arc ion plating technique. XRD, SEM and cutting experiments were used to examine the effects of different gradient structures on the phases, surface morphology, adhesive strength, residual stress, wear and cutting performance of the deposited TiAlSiN coatings. The results show that the TiAlSiN coatings with different Si containing layer structures are composed mainly of solid solution (Ti, Al)N and (Al, Ti)N phases. Among all the three coatings, the S3 coating with low Si content gradient structure exhibits high hardness, good adhesion, low residual stress and low friction coefficient. The cutting results show that the typical wear mechanism of the coated tool is mainly represented by adhesive wear. When the cutting speed is 80 m/min, the S3 coating coated tools exhibits the higher cutting length (925 m), which is much higher than that of the S1 coated tools (525 m). With further increasing the cutting speed to 110 m/min, the cutting length of the S3 coating coated tools increases to 1650 m. It is demenstrated that the improved adhesive strength and cutting performance of the coated tools can be obtained by designing the gradient structure for the Si containing coating. |
| Key words: multi-arc ion plating TiAlSiN coating gradient coating cutting performance |