Enhancement of the crack resistance of manganese cast irons

被引：6

作者：

Balyts'kyi, OI ^{[1
]}

Kolesnikov, VO

Kubicki, E

机构：

[1] Ukrainian Acad Sci, Karpenko Physicomech Inst, Lvov, Ukraine

[2] Dal E Ukrainian Natl Univ, Lugansk, Ukraine

[3] Tech Univ Szczecin, Inst Mat Engn, Szczecin, Poland

来源：

MATERIALS SCIENCE | 2005年 / 41卷 / 01期

关键词：

Iron; Calcium; Manganese; Structural Material; Cast Iron;

D O I：

10.1007/s11003-005-0133-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have determined the parameters of static (K-IC = 30-44 MPa root m) and cyclic crack resistance of austenitic manganese irons (Delta K-th = 4.7-6.3 MPa root m, Delta K-fc = 35-44 MPa root m). The results obtained were compared with literature data. High KIC values in the alloys under consideration were reached owing to the refining action of calcium. We have studied the micromechanism of fracture of these materials with the use of modern methods of investigation. We have shown that the parameters of the graphitic phase as well as the toughness and plasticity of the metal matrix affect the breaking strength significantly.

引用

页码：67 / 73

页数：7