Dislocation structure evolution induced by irradiation and plastic deformation in the Zr–2.5Nb nuclear structural material determined by neutron diffraction line profile analysis

Balogh, Levente; Brown, Donald W.; Mosbrucker, Paula; Long, Fei; Daymond, Mark R.

doi:10.1016/j.actamat.2012.06.062

Cited by 61 publications

(45 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, if the dislocations have formed cell structure or dislocation dipole, M becomes smaller than unity (M < 1) because of the strong interaction of dislocations. 10,15,16) As shown in Fig. 7(a), R e ′ of as-quenched martensite is as large as 55 nm; it decreases drastically with the charging of small plastic strain.…”

Section: Analysis Of Characteristics Of Dislocations Inmentioning

confidence: 87%

Change in Dislocation Characteristics with Cold Working in Ultralow-carbon Martensitic Steel

2016

View full text Add to dashboard Cite

Section: Analysis Of Characteristics Of Dislocations Inmentioning

confidence: 87%

Change in Dislocation Characteristics with Cold Working in Ultralow-carbon Martensitic Steel

2016

View full text Add to dashboard Cite

“…With the same technique as described in Ref. [53], we measured the density of the deformed non-irradiated TD sample by neutron diffraction at the NPDF beam line at LANSCE. Fig.…”

Section: Effect Of Fast Neutron Irradiation On the Deformation Behaviormentioning

confidence: 99%

“…In our previous study [53], the densities of type <a> and type <c þ a> dislocations in the non-irradiated and irradiated AD samples were evaluated before and after the deformation by line profile analysis. With the same technique as described in Ref.…”

Section: Effect Of Fast Neutron Irradiation On the Deformation Behaviormentioning

confidence: 99%

Effect of neutron irradiation on deformation mechanisms operating during tensile testing of Zr–2.5Nb

et al. 2016

Self Cite

View full text Add to dashboard Cite

“…When dislocation dipoles are formed, the value of M typically becomes small. 12,13) The M value was 1.6 before cold-rolling and steeply decreased to 0.6 during the first 10% cold-rolling. The M value then slowly decreased to 0.4 as the rolling reduction rate was increased.…”

Section: Line Profile Analysismentioning

confidence: 99%

Microstructural Features of Cold-Rolled Carbon Steel Evaluated by X-ray Diffraction Line Profile Analysis and Their Correlation with Mechanical Properties

2014

View full text Add to dashboard Cite

Line profile analyses of cold-rolled carbon steels were conducted to evaluate microstructural features such as dislocation density, crystallite size, and M values. After the samples were subjected to 40% coldrolling, dislocation density increased from 7 × 10 13 m −2 to 2 × 10 15 m −2 and crystallite size decreased from 155 nm to 35 nm. The component ratio of screw and edge dislocations was approximately 1:1, as determined from the evaluation of the q values. The M value that indicated interaction of dislocations substantially decreased during the initial stage of cold-rolling, which means interaction of dislocations becomes strong. Proof stress, hardness, and tensile strength were increased by the cold-rolling process. Furthermore, the ratios between proof stress and hardness were initially 2 and increased to approximately 3. The correlation between the microstructures and the mechanical properties was demonstrated according to the Bailey-Hirsch relationship between flow shear stress and dislocation density. Variations in the proof stress and hardness as a function of the square root of dislocation density indicated that the work-hardening of the material is affected by not only the total amount of dislocations but also other factors, such as crystallite size and arrangement of dislocations.

show abstract

Dislocation structure evolution induced by irradiation and plastic deformation in the Zr–2.5Nb nuclear structural material determined by neutron diffraction line profile analysis

Cited by 61 publications

References 58 publications

Change in Dislocation Characteristics with Cold Working in Ultralow-carbon Martensitic Steel

Change in Dislocation Characteristics with Cold Working in Ultralow-carbon Martensitic Steel

Effect of neutron irradiation on deformation mechanisms operating during tensile testing of Zr–2.5Nb

Microstructural Features of Cold-Rolled Carbon Steel Evaluated by X-ray Diffraction Line Profile Analysis and Their Correlation with Mechanical Properties

Contact Info

Product

Resources

About