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Title: Structural alloys for high field superconducting magnets

Abstract

Research toward structural alloys for use in high field superconducting magnets is international in scope, and has three principal objectives: the selection or development of suitable structural alloys for the magnet support structure, the identification of mechanical phenomena and failure modes that may influence service behavior, and the design of suitable testing procedures to provide engineering design data. This paper reviews recent progress toward the first two of these objectives. The structural alloy needs depend on the magnet design and superconductor type and differ between magnets that use monolithic and those that employ force-cooled or ICCS conductors. In the former case the central requirement is for high strength, high toughness, weldable alloys that are used in thick sections for the magnet case. In the latter case the need is for high strength, high toughness alloys that are used in thin welded sections for the conductor conduit. There is productive current research on both alloy types. The service behavior of these alloys is influenced by mechanical phenomena that are peculiar to the magnet environment, including cryogenic fatigue, magnetic effects, and cryogenic creep. The design of appropriate mechanical tests is complicated by the need for testing at 4/sup 0/K and by ratemore » effects associated with adiabatic heating during the tests. 46 refs.« less

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley Lab., CA (USA)
OSTI Identifier:
5987376
Report Number(s):
LBL-19405; CONF-850814-34
ON: DE86006284
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: Cryogenic engineering conference and international cryogenic materials conference, Boston, MA, USA, 12 Aug 1985; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AUSTENITIC STEELS; MECHANICAL STRUCTURES; SUPERCONDUCTING MAGNETS; CHROMIUM ALLOYS; IRON ALLOYS; JAERI; MANGANESE ALLOYS; MARTENSITE; NICKEL ALLOYS; WELDING; YIELD STRENGTH; ALLOYS; CARBON ADDITIONS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; FABRICATION; IRON BASE ALLOYS; JAPANESE ORGANIZATIONS; JOINING; MAGNETS; MECHANICAL PROPERTIES; NATIONAL ORGANIZATIONS; STEELS; SUPERCONDUCTING DEVICES; 360103* - Metals & Alloys- Mechanical Properties; 700209 - Fusion Power Plant Technology- Component Development & Materials Testing

Citation Formats

Morris, Jr, J W. Structural alloys for high field superconducting magnets. United States: N. p., 1985. Web.
Morris, Jr, J W. Structural alloys for high field superconducting magnets. United States.
Morris, Jr, J W. 1985. "Structural alloys for high field superconducting magnets". United States. https://www.osti.gov/servlets/purl/5987376.
@article{osti_5987376,
title = {Structural alloys for high field superconducting magnets},
author = {Morris, Jr, J W},
abstractNote = {Research toward structural alloys for use in high field superconducting magnets is international in scope, and has three principal objectives: the selection or development of suitable structural alloys for the magnet support structure, the identification of mechanical phenomena and failure modes that may influence service behavior, and the design of suitable testing procedures to provide engineering design data. This paper reviews recent progress toward the first two of these objectives. The structural alloy needs depend on the magnet design and superconductor type and differ between magnets that use monolithic and those that employ force-cooled or ICCS conductors. In the former case the central requirement is for high strength, high toughness, weldable alloys that are used in thick sections for the magnet case. In the latter case the need is for high strength, high toughness alloys that are used in thin welded sections for the conductor conduit. There is productive current research on both alloy types. The service behavior of these alloys is influenced by mechanical phenomena that are peculiar to the magnet environment, including cryogenic fatigue, magnetic effects, and cryogenic creep. The design of appropriate mechanical tests is complicated by the need for testing at 4/sup 0/K and by rate effects associated with adiabatic heating during the tests. 46 refs.},
doi = {},
url = {https://www.osti.gov/biblio/5987376}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Aug 01 00:00:00 EDT 1985},
month = {Thu Aug 01 00:00:00 EDT 1985}
}

Conference:
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