晶块尺寸和点阵畸变对铜和铜合金性能影响

采用近似函数法并借助计算机计算，分析引起铜及铜合金Ｘ射线衍射峰物理宽化的微观晶块尺寸和点阵畸变大小，进而分析在纯铜中加入Ａｇ和Ｓｎ等合金元素对其性能产生巨大影响的原因。结果表明，近似函数法是一种简便有效的分析铜合金Ｘ射线衍射峰宽化的方法之一，而合金元素Ａｇ和Ｓｎ等对铜合金性能的影响与其Ｘ射线衍射峰的物理宽化有明显的对应关系。

The Effects of the Size of Subgrains and the Degree of Lattice Distortion on the Properties of Cu and Cu-Alloys

The method of approximate function has been applied to analyzing the widening of the peaks of X-ray diffraction caused by decreasing the size of subgrains and increasing of lattice distortion. And then the cause of the great effects of the alloying elements Ag and Sn on the properties of Cu alloys prepared by rolling and pulling after continuous casting has ben analyzed. The results show that the approximate function is a simple and effective method of calculating the widening of the peaks of X-ray diffraction. And the effects of the alloying elements Ag and Sn on the properties of Cu-alloys keep obvious corresponding relationships with the physical widening of the peaks of X-ray diffraction.