摘要
利用垂直截面法测量了20钢经不同形变和氮化复合处理后冲击断裂表面的分形维数.结果表明,材料的冲击功A_k和沿裂纹扩展方向剖面Koch曲线的分形维数D_F均随形变量的增加而增大.分形维数D__F与InAk之间呈正变化的线性关系,且满足关系式:InA_k=6.313D_F-4.951.
Fractal dimension of impact fracture surfaces of 0. 2C steel after deform ation-nitriding were measured by vertical section method. The results show that, the larger the prior degree of deformation, the higher the impact energy and the fractal dimension of the fracture surface. The relation between the impact energy .Ak and the fractal dimension DF was derived, i. e. lnAK = 6. 313DF-4. 951.
出处
《理化检验（物理分册）》
CAS
1997年第6期19-21,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
垂直截面法
形变氮化
分形维数
钢
断口分析
Vertical section method Deformation-nitriding Impact energy Fractal dimension
