Research on High Performance Surface Modified Layer with Dispersed Fine Particles

高性能细颗粒分散表面改性层的研究

• 批准号: 14550126
• 负责人: FUJII Masahiro
• 金额: $ 2.24万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550126/
• 关键词: Surface Modification; Tribology; Dispersed Particle; Wear; Friction; Dispersed Precipitation; Spraying; FEM; 複合めっき; 溶射被膜; FEM

In order to improve the tribological performance of surface modified layer, dispersed particles, dispersed precipitations and ceramics particles spraying were investigated.1. Roller and ring/disk tests were carried out under non-lubricating condition in high vacuum to investigate the tribological performance of particle dispersed composite platings. The influence of elastic modulus of dispersed particles on stresses was investigated with FEM analysis. The maximum values of Von Mises stress in the plated layer increased with increasing particle content and with decreasing elastic modulus of particles. The wear behavior obtained in the experiment could be well explained by the calculated stress field.2. The rolling contact fatigue of a sprayed alumina ceramics was studied with a two-roller test apparatus with oil lubricant. The subsurface shear stresses were calculated with two-dimensional FEM analyses. The maximum values of orthogonal shear stress and maximum shear stress occurred withi … More n the sprayed layer. The depths of observed subsurface cracks were generally deeper than those of the maxima of shear stresses.3. The friction and wear characteristics of stainless steel with dispersed precipitations were investigated with ring-on-disk test apparatuses under oil lubricating condition and non-lubricating condition in air and in vacuum. The friction and wear performances of stainless steel were improved by dispersed precipitations.4. A gear test and a two-cylinder test were carried out under non-lubricating condition in high vacuum. In case of the Ni-P plated gear with dispersed PTFE particles, the wear was almost uniform along the tooth profile and the fluctuation of the dynamic load was small. Though the wear in the two-cylinder test was much smaller than that in the gear test, there is a good correlation of the average friction coefficients between the two tests.These results were useful to design the optimum thickness and dispersed particles of surface modified layer. Less

为了提高表面改性层的摩擦学性能，研究了分散颗粒、分散沉淀和陶瓷颗粒喷涂三种表面改性方法.在高真空无润滑条件下进行了滚柱和环盘摩擦磨损试验，研究了颗粒弥散复合镀层的摩擦学性能。用有限元法分析了分散颗粒的弹性模量对应力的影响。镀层中的最大Von Mises应力值随颗粒含量的增加而增大，随颗粒弹性模量的减小而减小。计算得到的应力场能够很好地解释实验中得到的磨损行为.采用双辊滚动接触疲劳试验机，在油润滑条件下，研究了喷涂氧化铝陶瓷的滚动接触疲劳性能。用二维有限元法计算了地下剪应力。正交剪切应力和最大剪切应力的最大值出现在 ...更多信息 在喷涂层中。观测到的亚表面裂纹深度一般都比剪应力最大值的深度深.采用环-盘摩擦磨损试验机研究了弥散析出相不锈钢在空气和真空中的油润滑和无润滑条件下的摩擦磨损特性。弥散析出相改善了不锈钢的摩擦磨损性能.在高真空无润滑条件下进行了齿轮试验和双缸试验。而PTFE颗粒弥散分布的Ni-P镀层齿轮，磨损沿齿廓沿着分布基本均匀，动载荷波动较小。双圆柱试验的磨损量远小于齿轮试验的磨损量，但两种试验的平均摩擦系数有很好的相关性，这一结果可为设计最佳的表面改性层厚度和分散粒子提供依据。少

项目成果

藤井正浩, 吉田 彰, 織田英哲: "無電解Ni基合金めっきの油潤滑下における摩擦・摩耗"日本機械学会2003年度年次大会講演論文集. 03-1, Vol.IV. 127-128 (2003)

Masahiro Fujii、Akira Yoshida、Hidetoshi Oda：“油润滑下化学镀镍基合金的摩擦和磨损”日本机械工程师学会 2003 年年会论文集 03-1，Vol.IV。 2003）

藤井正浩, 吉田 彰, 原野智哉: "ヘルツ接触下における表面改質層の応力分布"日本機械学会中国四国支部・九州支部合同企画松山地方講演会講演論文集. 025-2. 181-182 (2002)

Masahiro Fujii、Akira Yoshida、Tomoya Harano：“赫兹接触下表面改性层的应力分布”日本机械工程师学会中国-四国分会和九州分会联合项目松山地区会议论文集 025-182。 ）

藤井正浩, 吉田 彰: "粒子分散複合めっきの真空中トライボ性能"日本機械学会第2回機素潤滑設計部門講演会講演論文集. 02-12. 203-204 (2002)

Masahiro Fujii、Akira Yoshida：“颗粒分散复合镀层的真空摩擦性能”第二届元素润滑设计分部讲座论文集，日本机械工程师学会 02-12（2002 年）。

Akira Yoshida, Masahiro Fujii: "Influence of Soft Surface Modification on Rolling Contact Fatigue Strength of Machine Element"Tribology International. Vol.35,Issue12. 837-847 (2002)

Akira Yoshida、Masahiro Fujii：“软表面改性对机械元件滚动接触疲劳强度的影响”国际摩擦学。

藤井正浩, 吉田 彰, 織田英哲: "耐摩耗性ステンレス鋼の摩擦・摩耗特性(油潤滑下および真空中の結果)"日本機械学会中国四国支部第42期総会・講演会講演論文集. 045-1. 413-414 (2004)

藤井正博、吉田晃、小田英俊：《耐磨不锈钢的摩擦磨损性能（油润滑和真空下的结果）》日本机械学会中国四国分会第42届会员大会暨演讲会论文集工程师。045-1.413-414（2004）