t4.5 new high stress materials for next generation of

T4.5New high stress materials for next generation of

superconducting applications.

Proposal 2019 & Update

Klaus-Peter Weiss (KIT)[email protected]

1

Objectives

Large-scale magnet systems need high currents to produce the required magnetic field in the bore center leading to substantial high Lorentz forces at the conductor location.

Therefore, cryogenic high strength materials are needed.

Reducing the size and the necessary field to have compact superconducting magnet systems, these systems leave only very little space to guarantee the structural integrity.

Again, cryogenic high strength materials are mandatory.

T4.5: New high stress materials for next generation of superconducting applications.

2

Challenge

A) A new material class combining the benefits of existing materials needs to be developed and adopted for cryogenic use.

B) The experience across the scientific and engineering communities needs to be linked.

C) Normative guidelines have to be established to allow the benchmarking of material production and qualification.

D) Standardized material characterization will provide reliable material properties used in innovative magnet design for medical, energy or scientific applications.


3

Implementation

WP1 Requirements & potential development

ST1.1 Identification of requirements by different applicationST1.2 Assessment of potential application development by high strength

WP2 Definition and production of high strength materials for cryogenic use

ST2.1 Identification of the potential material classesST2.2 Defining the dedicated composition and production-processST2.3 Identification of suppliers of material and purchase

WP3 Qualification of high strength materials for cryogenic use

ST3.1 Defining the appropriate test methods to characterize the materialsST3.2 Identify test laboratories that will cover the testsST3.3 Characterization of materials in specific laboratories

WP4 Dissemination for project partners and outside communities, IPR

ST4.1 Reporting the results and provide them to other project partners


4

grain refinement

metalmatrixcomposite

pultruded composite

Implementation


5

grain refinement


pultruded composite

UPDATE: EUROfusion ENR-TASK 2019-2020

“Grain refinement of 316LN“

Tools used for the process: melt furnace (left) to produce an ingot that is deformed (middle) with the forging tool (right).

Weiss et al „Mechanical Properties after Thermomechanical Processing of Cryogenic High-Strength Materials for Magnet Application” to be published in Fusion Engineering and Design (2021)

Specific hot/cold deformation with heat treatment for grain refinement

Improvement of cryogenic mechanical properties

Prospect for Phase 2

Grain refinement

Transfer and improve process for other high stress materialse.g. XM-19, …

Metal Matrix Composite

Survey and qualification of material combinations for cryogenic use

Facilitate potential of different materials

Assessment of hybrid manufacturing à crossover metal to fiber reinforced materials


6

grain refinement


pultruded composite

t4.5 new high stress materials for next generation of

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