Carbon precipitation in a Sigma=5 tilt boundary in molybdenum

被引：5

作者：

Bacia, M ^{[1
]}

Penisson, JM ^{[1
]}

Biscondi, M ^{[1
]}

机构：

[1] ECOLE NATL SUPER MINES, F-42023 ST ETIENNE 2, FRANCE

来源：

INTERGRANULAR AND INTERPHASE BOUNDARIES IN MATERIALS, PT 1 | 1996年 / 207卷

关键词：

electron microscopy; grain boundaries; body centered materials; precipitation;

D O I：

10.4028/www.scientific.net/MSF.207-209.193

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Molybdenum bicrystals have been studied by high resolution electron microscopy (HREM) before and after a carburization treatment to determine the morphology of the carbides which are present in the boundary. In particular a new phase with a tetragonal structure taking shape of continuous thin film (similar to 1.5 nm) has been observed. It can be described as MoCx with x similar to 0.4. Mechanical tests using the 4 point bending method revealed that the boundary is stronger and the plasticity is enhanced when it is covered by the new MoCx phase.

引用

页码：193 / 196

页数：4

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