June 28, 2015 to July 2, 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

The Mechanical and material properties of 316LN austenitic stainless steel for the fusion application in cryogenic temperatures

Jun 30, 2015, 4:30 PM
Tucson Ballroom CD

Tucson Ballroom CD

Contributed Oral Presentation ICMC-14 - Cryogenic Materials Testing and Methods M2OrD - Cryogenic Materials V: Structural Materials


Dr Jan Sas (The Karlsruhe Institute of Technology)


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.

Primary author

Dr Jan Sas (The Karlsruhe Institute of Technology)


Dr Alexandra Jung (The Karlsruhe Institut of Technology) Dr Klaus-Peter Weiss (The Karlsruhe Institut of Technology)

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