论文部分内容阅读
热处理工作者普遍认为,材料的性能是其化学成分的复合函数。本文试图以数理统计方法探讨材料性能与化学成分之间的关系,并定量地给出一个表达式. 图1是由大量重复试验结果绘制成的淬火钢的最高硬度与含碳量的关系图。所测定的各硬度值(即随机试验中的各观察值,随机事件)集中在平均值周围。因此,它应遵循以研究随机试验中随机现象为研究对象的
Heat treatment workers generally believe that the performance of the material is a composite function of its chemical composition. This paper attempts to explore the relationship between material properties and chemical composition by mathematical statistics and quantitatively gives an expression.Figure 1 shows the relationship between the maximum hardness and carbon content of hardened steel drawn from a large number of repeated test results. Each measured hardness value (ie, each observation in a randomized trial, random event) is concentrated around the average. Therefore, it should follow to study the random phenomenon of randomized subjects for the study