PLASTIC GROWTH OF A CRACK.

被引：0

作者：

Poliektov, Yu.I.

Rybin, V.V.

机构：

来源：

Physics of Metals and Metallography | 1972年 / 34卷 / 06期

关键词：

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The mixed ductile-brittle fracture of a b. c. c. polycrystal was studied by means of the scanning electron microscope. Ductile cracks were simultaneously observed in plan and cross-section. Highly developed heterogeneous plastic deformation was visualized near the crack on the cross-sectional cut. In plan the ductile crack has the usual oyster-shell fracture surface. The fracture of a complex titanium-based alloy with a b. c. c. lattice was studied. A model is proposed for the formation and development of a ductile crack. Certain conclusions of this model are discussed.

引用

页码：27 / 35