Speaker
Description
Effective reinforcement materials require both a high value for tensile strength and a high modulus of elasticity in order to provide a high capacity for load bearing and a high resistance to deformation under external force. At cryogenic temperatures, both strength and modulus are usually amplified. For applications, properties at both temperatures have to be characterized. We have investigated a nickel based alloy. This alloy has higher Young’s modulus than stainless steels, which have been used as reinforcement materials at cryogenic environment. The test materials have been subjected to thermo-mechanical processing that strengthens the alloys through very fine planar defects. We studied property changes resulting from deformation in the alloys at either cryogenic or room temperature conditions. At cryogenic temperatures, the alloy had more resistance to plastic deformation than at room temperatures. We also investigated physical property changes at cryogenic temperatures and magnetic fields. This presentation summarizes the properties of this alloy and its microstructure under various conditions.
Acknowledgements
This work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Cooperative Agreement No. DMR-1644779 and the State of Florida.
