Fracture mechanism of borated stainless steel

Journal Article · Mon May 01 04:00:00 EDT 2000 · Nuclear Technology

OSTI ID:20030428

He, J Y; Soliman, S E; Baratta, A J; Balliett, T A

The mechanical properties and fracture mechanism of irradiated and unirradiated boron containing Type 304 stainless steel are studied. Four different batches with different boron weight percentages are used. One of these batches was manufactured by a conventional wrought technique, while the others were manufactured by a powder metallurgy technique. The irradiated specimens were subjected to a fluence level of 5 x 10{sup 19} or 1 {times} 10{sup 21} n/m{sup 2}. The mechanical and fracture tests were performed at temperatures of 233, 298, and 533 K. No significant effects on the mechanical properties or fracture behavior were observed as a result of neutron irradiation and/or temperature. The ductility and toughness of the borated steel were found to decrease with increasing boron content. The effect of boride on void nucleation and linkage was found to play an important role in the fracture behavior of borated steel.

• Research Organization: Pennsylvania State Univ., University Park, PA (US)
• OSTI ID: 20030428
• Journal Information: Nuclear Technology, Journal Name: Nuclear Technology Journal Issue: 2 Vol. 130; ISSN 0029-5450; ISSN NUTYBB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ADDITIONS
DUCTILITY
FRACTURE PROPERTIES
METALLURGICAL EFFECTS
NEUTRON ABSORBERS
PHYSICAL RADIATION EFFECTS
STAINLESS STEEL-304
TEMPERATURE DEPENDENCE