Fatigue reliability guarantee of the interface toughening. Super surface modified material.

界面增韧的疲劳可靠性保证。

基本信息

批准号：
12450042
负责人：
SUZUKI Hideto
金额：
$ 9.73万
依托单位：
IBARAKI UNVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2002
项目状态：
已结题

项目摘要

In this research, the super DLC film which turns an interface toughly and has a very low wear coefficient and a very thick film was invented. And, the demonstrative basic research for 3 years was carried out on the construction of life accelerated test method which can appropriately evaluate fatigue reliability of a DLC film. The purpose of this study is that contradictory characteristics that is complicated surface texture and fatigue reliability with the interface toughening between DLC film and backing are compatible in the high dimension. The systematic arrangement of a knowledge was carried out on three problems of the following. (1) Construction of the super DLC film invention process ; Optimized treating process which realizes ultra low friction coefficient and super thick film of a DLC film is constructed. (2) Optimization of the interface toughening, the adhesive strengthening structure and the systematization of the treating process ; Control of the optimal micro structure an … More d a composite-ized process are systematized systematically to realize the interface toughening and the adhesive strengthening. (3) Construction of the fatigue reliability guarantee system ; Based on the accelerated test method, consistent reliability assurance system including the invention of the super DLC film material is constructed by systematically arranging a knowledge on product safety guarantee in the very long life region.The result obtained by this study for three years is as follows. (1)Fatigue reliability evaluation of the Al-Si sintered alloy which improved the frictional property by conducting DLC coating was carried out. The fatigue strength of DLC covering material was improved in comparison with unprocessed material. This is because that the interface strength between Si particle and backing is improved by conducting the DLC coating. (2)The effect of Hybrid DLC coat processing conducted to high speed tool steel SKH-51 on the fatigue strength was examined. It is necessary to pay the sufficient attention in not only improvement in the surface function but also heat history residual stress, when the surface reforming processing is conducted to the tool steel. Less

在这项研究中，Super DLC胶片扭曲了界面，并且发明了非常低的磨损芯和非常厚的膜。而且，关于生命加速测试方法的建设进行了3年的指示基础研究，该方法可以适当地评估DLC膜的疲劳可靠性。这项研究的目的是，矛盾的特征是复杂的表面纹理和疲劳可靠性，而DLC膜和背部之间的界面在高维度中兼容。知识的系统安排是在以下三个问题上进行的。（1）超级DLC电影事故过程的构建；优化的治疗过程实现了DLC膜的超低摩擦系数和超厚的膜。（2）优化界面韧性，粘合剂加强结构和治疗过程的系统化；控制最佳的微型结构和更多的复合材料过程是系统化的，以实现界面固化和粘合剂的增强。（3）疲劳可靠性保证系统的构建；基于加速测试方法，包括超级DLC膜材料（包括超级DLC膜材料事件的事件）的一致可靠性保证系统是通过系统地安排了很长的寿命区域中产品安全保证的知识来构建的。本研究获得了三年的结果，如下。（1）对AL-SI烧结合金的疲劳可靠性评估，通过进行DLC涂层改善了摩擦性能。与未经处理的材料相比，DLC覆盖材料的疲劳强度得到了改善。这是因为通过传导DLC涂层，SI粒子和背部之间的界面强度得到了改善。（2）检查了对高速工具钢SKH-51进行的混合DLC涂层处理对疲劳强度的影响。当对刀具进行表面改革处理时，不仅有必要在改善表面功能，而且还要给予热史残留应力。较少的