论文部分内容阅读
金属的强度是表示金属原子之间的结合力,而熔点则表示金属结合力瓦解的开始。因此两者之间应具有一定的函数关系。但是过去由于实验的数据不够多或测试精度不够高。对这方面的报导还不够多。近年来随着强度测试数据的增多及精度的提高,已可以找出它们之间的关系。文献[1]已经提出,纯金属的室温真实抗拉强度按原子序数排列具有周期性。而且这种周期性的起伏与熔点强度基本对应。两者的儿个峰值在元素周期表上仅相差1个族。如果将纯金属的室温真实抗拉强度σ_T与熔点温度T_m给成关系曲线,则如图1所示。图中的数据取自文献[2-5]。
The strength of the metal is the binding force between the metal atoms, and the melting point indicates the beginning of the disintegration of the metal bond. Therefore, the two should have a certain functional relationship. But in the past due to insufficient experimental data or testing accuracy is not high enough. There are not enough reports in this area. In recent years, with the increase of intensity test data and the improvement of accuracy, it is possible to find out the relationship between them. It has been proposed in literature [1] that the true tensile strength of pure metal at room temperature is periodic in atomic number. And this periodic fluctuation basically corresponds with the melting point strength. There are only 1 race between the two peaks in the periodic table. If the real pure room temperature tensile strength σ_T and melting point temperature T_m into a relationship, as shown in Figure 1. The data in the figure are taken from the literature [2-5].