一、前言国内外许多研究工作者研究了钢中氮化铝对奥氏体晶粒度、延展性及断口的影响。我们结合实际情况,采用相关系数与回归分析的方法,对炮钢中氮化铝含量与断口及横向性能的关系进行了研究。结果表明,它们之间的关系可用回归直线方程来表示。 I. Preface Many domestic and foreign researchers have studied the effect of aluminum nitride on austenite grain size, ductility and fracture in steel. According to the actual situation, we used the correlation coefficient and regression analysis method to study the relationship between the content of aluminum nitride in the gun steel and fracture and transverse properties. The results show that the relationship between them can be expressed by regression line equation.