Affordable Access

Publisher Website

Influence of atmospheric nitrogen on the creep properties of chromium-tantalum alloys

Authors
Journal
Journal of the Less Common Metals
0022-5088
Publisher
Elsevier
Publication Date
Volume
12
Issue
1
Identifiers
DOI: 10.1016/0022-5088(67)90063-x

Abstract

Abstract Tensile creep tests have been carried out on chromium-2% tantalum-0.1% titanium-0.5% silicon, and chromium-2% tantalum-0.05% boron alloys both in air and in argon atmospheres, to study the effect of nitrogen contamination on creep properties. Alloys tested in air show superior creep strength in comparison with those tested in argon, the difference in creep resistance being attributed to the internal precipitation of a complex chromium-tantalum nitride. There are also differences in fracture behaviour, and alloys tested in air are considerably less ductile than those tested in argon. Attention is directed to the existence of a specimen-size effect in the case of creep tests done in air.

There are no comments yet on this publication. Be the first to share your thoughts.