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An Intermetallic Precipitate Strengthened Materials for Cryogenic Applications

Published online by Cambridge University Press:  01 February 2011

Ke Han ,
Yan Xin  and
Robert P. Walsh
Ke Han
Affiliation:
[email protected], United States
Yan Xin
Affiliation:
[email protected], National High Magnetic field Laboratory, Tallahassee, United States
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Abstract

In high field magnets, most of the structural materials operate at very low temperatures (e.g. 1.8 K) and high magnetic fields (e.g. >20 T). Such an extreme environments ask for demanding properties from the materials. Austenite stainless steels have been used for such an application for decades and provide good combination of mechanical strength and toughness at cryogenic temperatures. In the National High Magnetic Field Laboratory, we have studied intermetallic precipitate strengthened alloys for high field magnet and cryogenic applications. An examination of the data from an intermetallic precipitate strengthened alloys shows that intermetallic precipitate strengthened alloys can be used at cryogenic temperatures and have some superior properties in extreme environments. Based on our experimental data, we developed a new alloy that has even better properties than the current intermetallic precipitate strengthened alloys.

Keywords

strengthphase transformationdislocations
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1128: Symposium U – Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications , 2008 , 1128-U05-50
Copyright
Copyright © Materials Research Society 2009

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References

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