The U.S. NHMFL 60 T long pulse magnet failure

Conference · Mon Jan 01 00:00:00 EST 2001

OSTI ID:975755

Schillig, J B ^[1]; Boebinger, G S ^[2]; Coe, H ^[3]; Paris, A W ^[4]; Gordon, M J ^[5]; Pacheco, M D ^[6]; Abeln, T G ^[7]; G, Hoagland R ^[8]; Mataya, M C ^[9]; Han, Ke; Ishmaku, A ^[10]; Sims, J R ^[11]

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1. Josef B.
2. Gregory S.
3. Hideyoshi
4. Alan W.
5. Michael J.
6. Michael D.
7. Terri G.
8. Richard G.
9. Martin C.
10. Aferdita
11. James R.

The 60 T long pulse magnet operated by the U. S. National High Magnetic Field Laboratory at Los Alamos National Laboratory, Los Alamos, New Mexico failed catastrophically on July 28, 2000. The failure was investigated and the cause was determined to be unusually low toughness in the nitrogen strengthened manganese stainless steel (Nitronic-40) reinforcing material. The source of the reduced toughness condition was a sigma phase conversion in the microstructure. The magnet failure, failure investigation and results of the investigation are described. Plans for the construction of the successor magnet, the 60 tesla long pulse Mark II, are described.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• OSTI ID: 975755
• Report Number(s): LA-UR-01-5260; TRN: US201018%%842
• Resource Relation: Conference: "Submitted to: 17th International Conference on Magnet Technology, Geneva, Switzerland, September 24-September 28, 2001"
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CONSTRUCTION
LANL
LOS ALAMOS
MAGNETIC FIELDS
MAGNETS
MANGANESE
MICROSTRUCTURE
NEW MEXICO
NITROGEN
STAINLESS STEEL-21-6-9
STAINLESS STEELS