D_6AC钢冲击断口形貌的分形研究  

Fractal Study of the Impact Fractography for D_6AC Steel

作　　者：叶瑞英[1] 李静媛[1] 马红[1] 李亚琴[1] 李祝[1] 

机构地区：[1]四川大学,四川成都610065

出　　处：《材料科学与工程》2001年第4期47-51,共5页Materials Science and Engineering

摘　　要：本文利用扫描电镜对含MnS夹杂物和含ZrN夹杂物的D6AC钢的冲击断口形貌进行了观察与分析 ;利用数字图象法测定了试样的断口分形维数 ,揭示了冲击断口形貌和冲击韧性与夹杂物含量之间的内在联系 ,探讨了材料冲击断口形貌与分形维数的关系 。In this paper SEM has been used for the impact fracture surface of D\-6AC including inclusion,MnS and ZrN.The fractal dimension of the specimen has been measured in terms of digital imaging method.The relationship between the impact tracture fracture surface,toughness and inclusion content was obtained.The relation between the impact fracture surface and fractal dimension was discussed.It seems hopeful to extend the application of fractal geometry to the material field.

关 键 词：D6AC钢 冲击韧性 断口形貌 分形维数 冲击断口 夹杂物 含量 

分 类 号：TG142.12[一般工业技术—材料科学与工程]