Precipitation and growth study of intermetallics and their effect on oxidation behavior in Zr–Sn–Fe–Cr alloy

Choudhuri, Gargi; Neogy, S.; Sen, Debasis; Mazumder, S.; Srivastava, D.; Dey, G.K.; Shah, B.K.

doi:10.1016/j.jnucmat.2012.07.006

Cited by 13 publications

(5 citation statements)

References 15 publications

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“…A final common application of SANS is to characterise the internal structures of hard materials such as silicate glasses, 122 zirconium-based alloys 123 and steels. 124 In steels and other alloys, treatments such as ball-milling, 124 tempering 125 and thermal annealing 123,124 typically induce the formation of nano-scale precipitates, which can have profound effects on the material properties.…”

Section: Precipitates and Clustersmentioning

confidence: 99%

Section: Precipitates and Clustersmentioning

confidence: 99%

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Practical applications of small-angle neutron scattering

Hollamby

2013

Phys. Chem. Chem. Phys.

125

116

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Recent improvements in beam-line accessibility and technology have led to small-angle neutron scattering (SANS) becoming more frequently applied to materials problems. SANS has been used to study the assembly, dispersion, alignment and mixing of nanoscale condensed matter, as well as to characterise the internal structure of organic thin films, porous structures and inclusions within steel.Using time-resolved SANS, growth mechanisms in materials systems and soft matter phase transitions can also be explored. This review is intended for newcomers to SANS as well as experts. Therefore, the basic knowledge required for its use is first summarised. After this introduction, various examples are given of the types of soft and hard matter that have been studied by SANS. The information that can be extracted from the data is highlighted, alongside the methods used to obtain it. In addition to presenting the findings, explanations are provided on how the SANS measurements were optimised, such as the use of contrast variation to highlight specific parts of a structure. Emphasis is placed on the use of complementary techniques to improve data quality (e.g. using other scattering methods) and the accuracy of data analysis (e.g. using microscopy to separately determine shape and size). This is done with a view to providing guidance on how best to design and analyse future SANS measurements on materials not listed below.

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Section: Precipitates and Clustersmentioning

confidence: 99%

Section: Precipitates and Clustersmentioning

confidence: 99%

Practical applications of small-angle neutron scattering

Hollamby

2013

Phys. Chem. Chem. Phys.

125

116

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“…Although the volume fraction of these particles is very small, the particles play an important role in controlling oxidation, hydrogenation, and irradiation behaviors [15]. Results of the SAED and TEM-EDS analyses of PPTs in Zr-1.2Nb and Zr-1.2Nb-0.7Mo are shown in Figure 6.…”

Section: Effects Of Mo On Precipitation Behaviors On Zr-nb Alloys Aftmentioning

confidence: 99%

Effects of molybdenum on microstructural evolution and mechanical properties in Zr–Nb alloys as nuclear fuel cladding materials

Yang

Abe

Kano

et al. 2015

Journal of Nuclear Science and Technology

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The Zr-Nb alloys were modified by doping of Mo as a minor alloying element to seek for the nuclear fuel cladding materials with better characteristics. The effects of Mo on microstructural evolution and mechanical properties in Zr-Nb alloys were systematically investigated and elucidated. Results showed that the martensitic microstructure, a mixture of lath martensites and lens martensites with internal twins, was observed in the alloys quenched from β-phase. Width of the lath martensite reduced with the increasing Mo concentration, and the volume fraction of lens martensite increased with increase in the Mo concentration. After final annealing, a new kind of precipitate, namely β-(Nb, Mo, Zr), was identified in the Mo-containing alloys. It was also found that Mo reduced the growth of the precipitates but increased their number density. Furthermore, Mo addition retarded the recrystallization process strongly and reduced the grain size significantly. In terms of the mechanical properties, Mo addition enhanced the yield strength and the ultimate tensile strength at room temperature, however decreased the ductility. The grain size strengthening was presumed as the greatest contributor in this system.

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“…Some of the calculation results are consistent with the conclusions of earlier experimental data. 25 It has also been reported 26,27 that elements such as Sn, Fe, Cr, and Nb are added to zirconium alloys, and most of them are present as Laves secondary phases. The secondary phases have a crucial influence on the corrosion resistance, mechanical properties, and hydrogen absorption capacity of zirconium alloys.…”

Section: Introductionmentioning

confidence: 98%

Effect of Elemental Doping on the Adsorption Behavior and the Mechanism of Hydrogen Adsorption on the Zirconium Surface

et al. 2022

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This study used the Monte Carlo (MC) and density functional theory (DFT) methods to simulate the adsorption process of a H atom on element (vacancy, Cr, Sn, and Fe)-doped Zr(0001) surfaces and further analyzed the adsorption site distribution, adsorption energy, charge transfer, and electronic structure, etc. of the doped zirconium surface model. Simulated results indicated that (i) although the doping of vacancy, Cr, Sn, and Fe had a significant effect on the adsorption site distributions of the H atom on the Zr(0001) surface, they showed completely different distribution patterns. (ii) Vacancy doping promoted the adsorption of the H atom on the Zr(0001) surface. The H atom would penetrate the zirconium matrix along the vacancy and then occupy the octahedral gap stably. On the contrary, the doping of Cr, Sn, and Fe inhibited Zr(0001) surface hydrogen uptake in the order of Fe > Cr > Sn, where the effect of Sn could be negligible. (iii) Fe doping had the greatest effect on the chemical reaction mechanism of H adsorption on the Zr(0001) surface, which significantly converted the chemical reaction from Zr−H-to Fe−H-dominated, while Cr doping caused the formation of the Cr−H and Zr−H coaction mechanism, and Sn doping had almost no effect on the mechanism of H adsorption on the Zr(0001) surface.

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Precipitation and growth study of intermetallics and their effect on oxidation behavior in Zr–Sn–Fe–Cr alloy

Cited by 13 publications

References 15 publications

Practical applications of small-angle neutron scattering

Practical applications of small-angle neutron scattering

Effects of molybdenum on microstructural evolution and mechanical properties in Zr–Nb alloys as nuclear fuel cladding materials

Effect of Elemental Doping on the Adsorption Behavior and the Mechanism of Hydrogen Adsorption on the Zirconium Surface

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