Cavity Evolution at Grain Boundaries as a Function of Radiation Damage and Thermal Conditions in Nanocrystalline Nickel

Muntifering, Brittany; Blair, Sarah; Gong, Cajer; Dunn, Aaron; Dingreville, Remi Philippe Michel; Qu, Jianmin; Hattar, Khalid Mikhiel

doi:10.1080/21663831.2015.1121165

Cited by 19 publications

(8 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cavity formation can lead to volumetric swelling. Recent work by Muntifering et al [43] suggested only a limited reduction of swelling in pulsed laser deposited nanocrystalline Nickel.…”

Section: Comparison Of Nanocrystalline Grains With Fine Grains and Implications For Swellingmentioning

confidence: 99%

“…Bai et al [25] demonstrated an enhanced defect annihilation process through rapid interstitial defect absorption and reemission (and subsequent combination) with vacancies approaching grain boundaries. A large scatter of defect densities as a function of grain size has been observed, however, which has been attributed to the dependence of boundary sink efficiency on grain boundary character [27] and other interfacial deviations [43].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The role of grain size in He bubble formation: Implications for swelling resistance

El-Atwani

Nathaniel

Leff

et al. 2017

Journal of Nuclear Materials

View full text Add to dashboard Cite

Nanocrystalline metals are postulated as radiation resistant materials due to their high defect and particle (e.g. Helium) sink density. Here, the performance of nanocrystalline iron films is investigated in-situ in a transmission electron microscope (TEM) using He irradiation at 700 K. Automated crystal orientation mapping is used in concert with in-situ TEM to explore the role of grain orientation and grain boundary character on bubble density trends. Bubble density as a function of three key grain size regimes is demonstrated. While the overall trend revealed an increase in bubble density up to a saturation value, grains with areas ranging from 3000-7500 nm 2 show a scattered distribution. An extrapolated swelling resistance based on bubble size and areal density indicated that grains with sizes less than 2000 nm 2 possess the greatest apparent resistance. Moreover, denuded zones are found to be independent of grain size, grain orientation, and grain boundary misorientation angle.

show abstract

“…Cavity formation can lead to volumetric swelling. Recent work by Muntifering et al [43] suggested only a limited reduction of swelling in pulsed laser deposited nanocrystalline Nickel.…”

Section: Comparison Of Nanocrystalline Grains With Fine Grains and Implications For Swellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The role of grain size in He bubble formation: Implications for swelling resistance

El-Atwani

Nathaniel

Leff

et al. 2017

Journal of Nuclear Materials

View full text Add to dashboard Cite

show abstract

“…Therefore, concurrent irradiations of materials with both a range of ion species and energies are needed to simulate these complex environments. Studies have examined the mobility of dislocations in Fe in the presence of He, 60 bubble growth and linkage behavior in SiC, 61 void formation in Ni, 62 and the dependence of single, dual, and triple ion beam (helium/deuterium/gold) irradiation on cavity formation and evolution. 63 Overall, in situ TEM irradiation has proven one of the most consistent and reliable tools for the investigation of the transient, ion-induced effects on materials at the nanoscale.…”

Section: Electron and Positron Beam Characterization Techniquesmentioning

confidence: 99%

The In Situ Ion Irradiation Toolbox: Time-Resolved Structure and Property Measurements

Lang

Dennett

Madden

et al. 2021

JOM

View full text Add to dashboard Cite

The dynamic interactions of ions with matter drive a host of complex evolution mechanisms, requiring monitoring on short spatial and temporal scales to gain a full picture of a material response. Understanding the evolution of materials under ion irradiation and displacement damage is vital for many fields, including semiconductor processing, nuclear reactors, and space systems. Despite materials in service having a dynamic response to radiation damage, typical characterization is performed post-irradiation, washing out all information from transient processes. Characterizing active processes in situ during irradiation allows the mechanisms at play during the dynamic ion-material interaction process to be deciphered. In this review, we examine the in situ characterization techniques utilized for examining material structure, composition, and property evolution under ion irradiation. Covering analyses of microstructure, surface composition, and material properties, this work offers a perspective on the recent advances in methods for in situ monitoring of materials under ion irradiation, including a future outlook examining the role of complementary and combined characterization techniques in understanding dynamic materials evolution.

show abstract

“…30 In situ TEM He implantation has previously been performed on several pure metals. [31][32][33][34][35][36][37][38][39][40][41] In situ TEM annealing has been employed to determine cavity growth mechanisms in He-implanted metals. 40,[42][43][44] We present new experimental results of in situ TEM He implantation and subsequent in situ TEM annealing in Pd, a face-centered cubic metal.…”

Section: Introductionmentioning

confidence: 99%

Using In Situ TEM Helium Implantation and Annealing to Study Cavity Nucleation and Growth

Taylor

Sugar

Robinson

et al. 2020

JOM

Self Cite

View full text Add to dashboard Cite

Noble gases are generated within solids in nuclear environments and coalesce to form gas stabilized voids or cavities. Ion implantation has become a prevalent technique for probing how gas accumulation affects microstructural and mechanical properties. Transmission electron microscopy (TEM) allows measurement of cavity density, size, and spatial distributions post-implantation. While post-implantation microstructural information is valuable for determining the physical origins of mechanical property degradation in these materials, dynamic microstructural changes can only be determined by in situ experimentation techniques. We present in situ TEM experiments performed on Pd, a model face-centered cubic metal that reveals real-time cavity evolution dynamics. Observations of cavity nucleation and evolution under extreme environments are discussed.

show abstract

Cavity Evolution at Grain Boundaries as a Function of Radiation Damage and Thermal Conditions in Nanocrystalline Nickel

Cited by 19 publications

References 30 publications

The role of grain size in He bubble formation: Implications for swelling resistance

The role of grain size in He bubble formation: Implications for swelling resistance

The In Situ Ion Irradiation Toolbox: Time-Resolved Structure and Property Measurements

Using In Situ TEM Helium Implantation and Annealing to Study Cavity Nucleation and Growth

Contact Info

Product

Resources

About