A GEOMETRICAL ASSESSMENT OF MACHINED CERAMIC SURFACE FOR ESTIMATING FATIGUE-STRENGTH

被引：0
|
作者：
YANAGI, K
TSUKADA, Y
MUTOH, Y
机构：
[1] Nagaoka University of Technology, Nagaoka, Niigata, Kamitomioka
来源：
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 1992年 / 32卷 / 1-2期
关键词：
D O I：
10.1016/0890-6955(92)90071-N
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of surface micro-geometry on fatigue strength of silicon nitride(Si3N4) were discussed and the data-processing techniques for a geometrical assessment of its surface finish were developed. Taking no account of conventional roughness standards, new topographical parameters based on profile valleys were proposed to correlate with the fatigue strength of test Specimens. The sampling conditions and the calculation method were examined in detail. Judging from the experimental results of fatigue tests, it was made clear that the fatigue strength of Si3N4 can be estimated to some extent with the statistical values on the micro-geometry at the bottom of valleys. The metrological discussion on the correlation was also made.
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页码：137 / 140
页数：4
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