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Elucidation for Micro-Tribology Behavior by Characterization of the Coating on Tool Surface

通过工具表面涂层的表征来阐明微观摩擦学行为

基本信息

批准号：
09450268
负责人：
AZUSHIMA Akira
金额：
$ 9.02万
依托单位：
Yokohama National University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

项目摘要

In the rolling process, the adhesion of the workpiece material on the tool surface is occurred, and the coating on the surface is generated. The coating has great influence on the surface quality of the product. In many studies on the coating the effect of surface as roughness and material composition on coating have been examined in the macroscopic point of view. However, new information is necessary to understand the tribological characteristic at the interface between roll and workpiece. In this report, in order to obtain the new information for the roll coating in the aluminum cold rolling the surface of coating is analyzed by the X-ray diffraction. Moreover, a new microscopic analysis for the coating is developed by using the collimator instead of the thin-film slit used usually. The conventional thin-film method is suitable for the roll coating analysis, but the measurement area is not small, therefore collimate device is used instead of the thin-film slit device in order to analyze the small area of the coating Cu-Kalpha radiation was used for the measurement, and Fixed Time method is used for measuring intensity.The experiment results obtain by the new developed X-ray diffraction method are follows. (1)The qualitative analysis of the coating by new method in the smaller measurement area is possible compare with the conventional area. (2)The newly developed method is effective for microscopic analysis of roll coating.

在轧制过程中，工件材料在刀具表面发生粘附，并在表面产生涂层。涂层对产品的表面质量影响很大。在许多涂层研究中，从宏观角度考察了表面粗糙度和材料成分对涂层的影响。然而，新的信息是必要的，以了解在辊和工件之间的界面的摩擦学特性。本文利用x射线衍射对铝冷轧轧辊涂层表面进行了分析，以期获得轧辊涂层的新信息。此外，采用准直仪代替传统的薄膜狭缝法，提出了一种新的涂层显微分析方法。传统的薄膜法适用于辊涂分析，但测量面积不大，因此为了分析涂层面积小，采用准直装置代替薄膜狭缝装置进行测量，采用Cu-Kalpha辐射进行测量，采用固定时间法进行强度测量。用新开发的x射线衍射方法得到的实验结果如下。(1)与常规测量区域相比，新方法可以在更小的测量区域内对涂层进行定性分析。(2)新方法对轧辊涂层的微观分析是有效的。