Elevated temperature tensile properties of borated 304 stainless steel: Effect of boride dispersion on strength and ductility

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:7280121

Stephens, J. J.; Sorenson, Ken B.; McConnell, P.

This paper has documented the increase in strain to fracture and yield strength obtained with Grade A versions of types 304B5 and 304B7 relative to their respective Grade B, counterparts. The apparent microstructural reason for these property increases is the finer dispersion of boride in the Grade A material, obtained by means of a Powder Metallurgy process, relative to the conventional Grade B material which is produced using an Ingot Metallurgy process. The area size distribution of borides can be well approximated using a log-normal distribution, with the largest boride particles in the Grade B material having areas in the range of 450--600 {mu}m{sup 2}. By comparison, the largest boride particles in the Grade A material have areas nearly an order of magnitude smaller than the largest particles in their Grade B counterparts. A Section III ASME B PV code case inquiry has been initiated for non-welded versions of 304B4A, 3045A and 3046A ,material.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7280121
• Report Number(s): SAND-91-2774C; CONF-920905-5; ON: DE92040096
• Resource Relation: Conference: 10. international symposium on the packaging and transportation of radioactive materials: PATRAM '92, Yokohama (Japan), 13-18 Sep 1992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STAINLESS STEEL-304
BORON ADDITIONS
MECHANICAL PROPERTIES
MICROSTRUCTURE
BORIDES
DISPERSIONS
FATIGUE
POWDER METALLURGY
SPENT FUEL CASKS
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TENSILE PROPERTIES
YIELD STRENGTH
ALLOYS
AUSTENITIC STEELS
BORON ALLOYS
BORON COMPOUNDS
CASKS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CONTAINERS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METALLURGY
NICKEL ALLOYS
STAINLESS STEELS
STEEL-CR19NI10
STEELS
TEMPERATURE RANGE
360103* - Metals & Alloys- Mechanical Properties