K. Kawatsura et al., ANALYSIS OF RADIATION-INDUCED SEGREGATION IN TYPE-304 STAINLESS-STEELBY PIXE AND RBS CHANNELING, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 118(1-4), 1996, pp. 363-366
The creation of defects and radiation-induced segregation (RIS) in sin
gle crystals of type 304 stainless steel, 1.6 MeV He irradiated up to
2.5 x 10(17) cm(-2) at RT, has been investigated by using a combinatio
n of RES and PIXE with channeling (RBS-C and PIXE-C). From the RBS-C,
it is found that radiation-induced defects for [110] orientation incre
ased more slowly with irradiation dose from those for the [100] and [1
11] orientations. The PIXE-C measurements show that Si atoms segregate
to the (100), (110) and (111) surfaces and S atoms seem to enrich sli
ghtly in the (100) and (110) surfaces during 1.6 MeV He ion irradiatio
n. It is the first time that the phenomenon of radiation-induced segre
gation is observed in stainless steels at room temperature irradiation
.