FRACTURE STUDIES OF TUNGSTEN SINGLE-CRYSTALS

被引：23

作者：

RIEDLE, J ^{[1
]}

GUMBSCH, P ^{[1
]}

FISCHMEISTER, HF ^{[1
]}

GLEBOVSKY, VG ^{[1
]}

SEMENOV, VN ^{[1
]}

机构：

[1] CHERXNOGOLOVKA SOLID STATE PHYS INST,CHERNOGOLOVKA 142432,RUSSIA

来源：

MATERIALS LETTERS | 1994年 / 20卷 / 5-6期

关键词：

D O I：

10.1016/0167-577X(94)90036-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For fracture studies on oriented W monocrystalline specimens it is necessary to produce very sharp, stopped precracks, which presents difficulties in the case of W. The procedure and technique to produce precracks is described. The fracture experiments gave strong indications for a preference of the {100} planes as cleavage planes. The {110} planes successfully resist crack propagation, although they are the planes with the lowest surface energy. Crack propagation on both the {110} crack system and {100} crack system is strongly influenced by the crack front orientation. The appearance of the {121} plane as a cleavage plane in our experiments makes further studies with oriented W monocrystalline specimens desirable.

引用

页码：311 / 317

页数：7

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