Physical-chemical interactions between DLC coatings and additivated lubricants

DLC 涂层和添加剂润滑剂之间的物理化学相互作用

基本信息

项目摘要

The worldwide awareness of the threat of global warming and the demand for reduction of greenhouse gases result in continuously rising demands on energy efficiency of tribological systems. An important technology for efficiency improvement of drive systems is the deposition of diamond-like carbon coatings (DLC) on machine elements due to their favorable friction and wear behavior in tribological contacts. Therefore, the application of carbon based coatings under full lubrication is increasingly coming into focus. Regarding tribological applications under lubricated conditions, interactions between carbon based coated surface and lubricant have to be taken into consideration. This is especially an interesting research topic, as the industrially used lubricants are usually developed for the application in contact with uncoated iron based materials. In this regard, it must be noted that tribo-chemical reactions with lubricants and their additives, which leads to the formation of a tribo-chemical layer, cannot occur on diamond-like carbon coatings as on iron based surfaces. This leads directly to the need for research. The aim of this joint research proposal of IOT and FZG is to investigate physical and chemical interactions between the diamond-like carbon coating graded zirconium carbide (ZrCg) and additivated lubricants under boundary and mixed friction as well as under elastohydrodynamic lubrication (EHL) conditions. As a first step, the diamond-like coating ZrCg will be deposited by means of middle frequency magnetron sputtering (mfMS). After that tribological model tests using a pin-on-disc-tribometer, a twin-disc tribometer and gear efficiency test-rig will be carried out with different combinations of standard lubricants and additives. Basing on tribological tests, the application of comprehensive physical-chemical analytics as Focused Ion Beam/Scanning Electron Microscopy, Secondary Neutral Mass Spectroscopy and Micro Raman Spectroscopy will be used to investigate physical and chemical interactions between the carbon based coating ZrCg and lubricants/additives in tribological contacts unter lubricated conditions. Gaining valuable insights about the mechanisms govern the formation and composition of tribochemical reaction layers on DLC coating will make a valuable contribution to understanding the tribological behavior of DLC coatings unter lubrication.
随着全球气候变暖的威胁和减少温室气体排放的要求,对摩擦学系统的能效要求不断提高。由于类金刚石涂层在摩擦接触中具有良好的摩擦磨损性能,因此在机械元件上沉积类金刚石涂层是提高传动系统效率的一项重要技术。因此,碳基涂层在全润滑条件下的应用日益成为人们关注的焦点。关于润滑条件下的摩擦学应用,必须考虑碳基涂层表面与润滑剂之间的相互作用。这是一个特别有趣的研究课题,因为工业上使用的润滑剂通常是为与未涂层的铁基材料接触而开发的。在这方面,必须指出的是,与润滑剂及其添加剂的摩擦化学反应会导致摩擦化学层的形成,而在类金刚石碳涂层上不可能像在铁基表面上那样发生这种反应。这直接导致了研究的需要。物联网和FZG的联合研究计划旨在研究类金刚石涂层分级碳化锆(ZrCg)与添加剂在边界摩擦和混合摩擦以及弹流动力润滑(EHL)条件下的物理和化学相互作用。作为第一步,将采用中频磁控溅射(mfMS)沉积类金刚石涂层ZrCg。在此之后,将使用针盘摩擦计、双盘摩擦计和齿轮效率试验台进行不同组合的标准润滑油和添加剂的摩擦学模型试验。在摩擦学试验的基础上,应用聚焦离子束/扫描电子显微镜、二次中性质谱和微拉曼光谱等综合理化分析方法,研究在润滑条件下碳基涂层ZrCg与润滑油/添加剂在摩擦学接触中的物理和化学相互作用。获得有关DLC涂层摩擦化学反应层形成和组成机制的宝贵见解,将对理解DLC涂层在润滑下的摩擦学行为做出有价值的贡献。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Formation mechanisms of zinc, molybdenum, sulfur and phosphorus containing reaction layers on a diamond‐like carbon (DLC) coating
  • DOI:
    10.1002/mawe.201900178
  • 发表时间:
    2020-07
  • 期刊:
  • 影响因子:
    1.1
  • 作者:
    K. Bobzin;T. Brögelmann;C. Kalscheuer;M. Thiex
  • 通讯作者:
    K. Bobzin;T. Brögelmann;C. Kalscheuer;M. Thiex
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Professorin Dr.-Ing. Kirsten Bobzin其他文献

Professorin Dr.-Ing. Kirsten Bobzin的其他文献

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{{ truncateString('Professorin Dr.-Ing. Kirsten Bobzin', 18)}}的其他基金

Simulation Supported Process Development for the Deposition of MCrAlY Coatings by Means of the AC-HVAF Process
仿真支持通过 AC-HVAF 工艺沉积 MCrAlY 涂层的工艺开发
  • 批准号:
    437084607
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Fundamental research on deposition of amorphous coatings on surfaces of inner geometries and evaluation of phase stability under tribological loading
内部几何形状表面非晶涂层沉积的基础研究和摩擦载荷下相稳定性的评估
  • 批准号:
    419126987
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development of novel creep resistant bond coats for “Environmental Barrier Coatings”
开发用于“环境屏障涂层”的新型抗蠕变粘合涂层
  • 批准号:
    428973451
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development of novel metallic feedstock materials for heating elements produced by thermal spraying
热喷涂加热元件用新型金属原料的开发
  • 批准号:
    437095503
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Increasing the energy efficiency of plasma spraying by means of simulation-based process development
通过基于模拟的工艺开发提高等离子喷涂的能源效率
  • 批准号:
    442323795
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Investigations on temperature-activated coatings for friction reduction during turning of titanium alloys
钛合金车削过程中减少摩擦的温度激活涂层的研究
  • 批准号:
    422345568
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Experimental and simulative investigations on the fatigue behavior of compounds, consisted of Cr-based nitride hard coatings on steel substrate under cyclic impact loads and bending stresses“ (Fatigue)
对由钢基体上的铬基氮化物硬质涂层组成的化合物在循环冲击载荷和弯曲应力下的疲劳行为进行实验和模拟研究(疲劳)
  • 批准号:
    422784687
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Thermo-Elastohydrodynamics of Coated Polymer Gears
涂层聚合物齿轮的热弹流体动力学
  • 批准号:
    391059617
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Influencing the arc behavior in cascaded single-arc DC plasma generator (DC-EKEAPG) to improve process stability and coating properties
影响级联单弧直流等离子发生器 (DC-EKEAPG) 中的电弧行为,以提高工艺稳定性和涂层性能
  • 批准号:
    336061514
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development of a method for in-situ determination of deposition efficiency in thermal spraying
热喷涂沉积效率原位测定方法的开发
  • 批准号:
    352196289
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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    10773228
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