Quantitative Evaluation of Effects of Inhomogeneity Phases on Fatigue Strength of Al-Si New Eutectic Alloys
Quantitative Evaluation of Effects of Inhomogeneity Phases on Fatigue Strength of Al-Si New Eutectic Alloys
复制标题
不均匀相对铝硅新型共晶合金疲劳强度影响的定量评价
DOI：
10.1299/kikaia.57.1320
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Y. Murakami
中科院分区：
文献类型：
--
作者：
H. Ikeda;T. Toriyama;Y. Murakami
Al-Si共晶合金中Si和Al-Fe-Mn等不均匀相对疲劳强度的影响被认为与小缺陷或非金属夹杂物的影响相当。研究了IP累积频率的最大粒度分布。最大IP的投影面积的平方根（面积）最大值服从极值统计。应用该疲劳强度预测方程成功地预测了三种铝硅新共晶合金的疲劳强度离散带。这些合金通常用于汽车空调用高性能压缩机的活塞部件。并建议将疲劳强度预测方程与最大面积统计分布数据相结合，用于设计前的材料质量控制。
The effects of inhomogeneity phase (IP) such as Si and Al-Fe-Mn in Al-Si eutectic alloys on fatigue strength are considered to be virtually equivalent to small defects or nonmetallic inclusions. The maximum size distribution of the cumulative frequency of IPs was investigated. The square root of the projection area of the maximum IPs (√(area)max) was found to obey the statistics of extreme. The fatigue strength prediction equation was successfully applied to predict the scatter band of the fatigue strength of three kinds of Al-Si new eutectic alloys. These alloys are usually used in the piston component of the high-performance compressor used for car air conditioners. It is suggested also that the combination of the fatigue strength prediction equation with the statistics distribution data on √(area)max can be used for the quality control of materials before the adoption for design.