Speaker
Dr
Jan Sas
(The Karlsruhe Institute of Technology)
Description
Due to the increasing demand onperformance for all materials used in superconducting magnet systems possibilities of increasing the mechanical performance of austenitic stainless steel is investigated. Especially at cryogenic conditions e.g. at liquid Helium temperature a variety of superconducting applications are realized.
The aim of this work is to investigate the mechanical properties of the steel grade 316LN before and after processing for superconducting cable jackets.
Here, cold working and especially heat treatment are crucial steps taken to build the cable in conduit changing the values of yield strength, ultimate tensile strength and total elongation.
The mechanical properties were evaluated using static tension tests at 4,2 K. Additionally structural changes were evaluated by light optical microscopy and EBSD (Electron Backscatter Diffraction). Two 316LN steels are compared, showing the impact of slight variations in the chemical composition.
Author
Dr
Jan Sas
(The Karlsruhe Institute of Technology)
Co-authors
Dr
Alexandra Jung
(The Karlsruhe Institut of Technology)
Dr
Klaus-Peter Weiss
(The Karlsruhe Institut of Technology)
