Neutron Radiography and Autoradiography at the J. Stefan Institute

Rant, J.; Čopič, Martin; Dimic, V.; Ilić, R.; Najžer, M.; Pregl, G.

doi:10.1007/978-94-009-7043-4_34

Cited by 2 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 21 shows a single snapshot of this recorded movie which allowed us for the first time to watch the engine work "from the inside" in real time. 147 In addition to the above mentioned industrial applications, neutron testing and imaging techniques are routinely used in examining geological and construction materials, 145,148,149 archeology, 150 metallurgy, 151 as well as water flow and diffusion in soil 142 and engineered porous materials. 152 One of the most recent applications of NTR is in situ measurements of the water transport in operating proton exchange membrane fuel cells.…”

Section: B Neutron Imaging Of Macroscopic Structures and Operationalmentioning

confidence: 99%

Small-angle neutron scattering in materials science: Recent practical applications

Melnichenko

Wignall

2007

Journal of Applied Physics

View full text Add to dashboard Cite

Modern materials science and engineering relies increasingly on detailed knowledge of the structure and interactions in "soft" and "hard" materials, but there have been surprisingly few microscopic techniques for probing the structures of bulk samples of these substances. Small-angle neutron scattering ͑SANS͒ was first recognized in Europe as a major technique for this purpose and, over the past several decades, has been a growth area in both academic and industrial materials research to provide structural information on length scales ϳ10-1000 Å ͑or 1-100 nm͒. The technique of ultrahigh resolution small-angle neutron scattering ͑USANS͒ raises the upper resolution limit for structural studies by more than two orders of magnitude and ͑up to ϳ30 m͒ and hence overlaps with light scattering and microscopy. This review illustrates the ongoing vitality of SANS and USANS in materials research via a range of current practical applications from both soft and hard matter nanostructured systems.

show abstract

Section: B Neutron Imaging Of Macroscopic Structures and Operationalmentioning

confidence: 99%

Small-angle neutron scattering in materials science: Recent practical applications

Melnichenko

Wignall

2007

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…Clad material may contain 10-20ppm boron as an impurity. Helium bubbles, produced by 10 B(n,α)Li 7 nuclear reaction in the nuclear reactor, can act at the grain boundaries as a crack nuclei and result in the irradiation embrittlement of stainless steel [5].…”

Section: Introductionmentioning

confidence: 99%

Influence of Copper on Redistribution Behaviour of Boron in Titanium Stabilized and Low Carbon Steel as Observed by Neutron Induced Alpha Autoradiography

Shriwastwa

Kumar²

2013

AMR

View full text Add to dashboard Cite

Boron content and its distribution play a significant role in modifying the metallurgical and mechanical properties of many steels and alloy at lower level of concentration. Precipitation of boron at the grain boundaries, have shown to improve the creep strength in titanium stabilized steel, high temperature ductility in low carbon corrosion resistant steel and the hardenability in low carbon steel in general. Titanium-stabilized steel (DIN 1.4970), was developed as a possible material for fast breeder sodium-cooled nuclear reactor core components for its superior creep strength, high micro-structural stability and elevated void swelling resistance. It is well known that, helium produced during neutron irradiation through the 10B(n,α)Li7 reaction, affects the mechanical properties and the amount of void swelling in nuclear reactor materials. Two nos. of Ti-stabilized steel samples with 40ppm boron and 2ppm boron (DIN 1.4970 & DIN1.4970LB steel) were analyzed for boron re-distribution behavior during different thermo-mechanical treatment using a technique known as Neutron Induced Alpha Autoradiography (NIAA). This technique is a well known technique, and widely used for revealing the spatial distribution of boron in the materials with a resolution approaching to ppm level. This technique has also been used to detect the influence of copper addition on boron distribution pattern in steel specimen. Mapping of boron autoradiography of Low carbon steels containing 20ppm of boron with and without copper was able to demonstrate this behavior. Boron track mapping of Low carbon steel without copper, in solution annealing treatment, show the uniform distribution of boron throughout the matrix, whereas when the similar steel with 1.48% copper was mapped, it shows the precipitation of boron at the grain boundaries.

show abstract

Neutron Radiography and Autoradiography at the J. Stefan Institute

Cited by 2 publications

References 4 publications

Small-angle neutron scattering in materials science: Recent practical applications

Small-angle neutron scattering in materials science: Recent practical applications

Influence of Copper on Redistribution Behaviour of Boron in Titanium Stabilized and Low Carbon Steel as Observed by Neutron Induced Alpha Autoradiography

Contact Info

Product

Resources

About