Results 11 to 20 of about 8,297 (199)
MetalsUsing Molecular Dynamics (MD) and Monte Carlo (MC) simulations, we studied the grain boundary (GB) segregation under different temperatures and Cr concentrations in Ni-Cr alloys with two distinct grain-boundary structures, i.e., Σ5(310)[010] and Σ101(200)
Pengwei Huang +4 more
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Metals, 2017 Several grain sizes were obtained by heat treatment at different temperatures for interstitial-free (IF) and 2.25Cr-1Mo steels. Samples of the steels with different grain sizes were aged at 600 and 680 °C for IF steel and 520 and 560 °C for 2.25Cr-1Mo ...
Yu Zhao, Shenhua Song, Hong Si, Kai Wang
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Journal of Materials Research and TechnologyThe influence of grain boundary segregation on corrosion behaviour of AA5083 alloy remains unclear. In the present work, the segregation in both as-received and sensitized AA5083 alloys was examined via transmission electron microscopy (TEM).
Xiangzhe Meng +5 more
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Radiation induced grain boundary segregation in ferritic/martensitic steels
Nuclear Engineering and Technology, 2020 The radiation induced segregation of Cr at grain boundaries (GBs) in Ferritic/Martensitic steels was modeled assuming vacancy and interstitialcy diffusion mechanisms.
L.D. Xia +6 more
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Grain Boundary Segregation in Metals [PDF]
, 2010 Grain boundaries are important structural components of polycrystalline materials used in the vast majority of technical applications. Because grain boundaries form a continuous network throughout such materials, their properties may limit their ...
Pavel Lejcek, Lejcek, Pavel
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Effect of B on Segregation Behavior of Mo at γ-Fe ∑9 and ∑11 Grain Boundaries
Taiyuan Ligong Daxue xuebao, 2023 Purposes Owing to the serious segregation of Cr and Mo in super austenitic stainless steel, a large number of Mo- and Cr-rich second phases precipitate during the hot rolling process, which leads to rolling cracking and delamination.
Xin YAN +4 more
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As segregation to grain boundaries in Si
Philosophical Magazine A, 1985 Abstract Scanning transmission electron microscopic (STEM) analysis has been applied to the study of equilibrium segregation of As to grain boundaries in Si. Direct quantitative evidence for the extant of segregation has been obtained in a number of specimens heated to temperatures between 1000 and 700°C. A value for the binding energy of an As atom to
Grovenor, C +3 more
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Effect of Mo and Cr on S-Induced Intergranular Fracture in γ-Fe
Metals, 2022 S is a common corrosion medium for austenitic stainless steels. The severe intergranular fracture of austenitic stainless steels occurs in sulfur environments.
Si Liu +8 more
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The Effect of B on the Co-Segregation of C-Cr at Grain Boundaries in Austenitic Steels
Metals, 2023 In austenitic steels, the co-segregation of C and Cr at grain boundaries can result in the formation of Cr23C6. However, the addition of B to steels can effectively reduce the amount of Cr23C6 formed and inhibit its ripening in experiments ...
Xin Yan +5 more
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Segregation-assisted spinodal and transient spinodal phase separation at grain boundaries
npj Computational Materials, 2020 Segregation to grain boundaries affects their cohesion, corrosion, and embrittlement and plays a critical role in heterogeneous nucleation. In order to quantitatively study segregation and low-dimensional phase separation at grain boundaries, here, we ...
Reza Darvishi Kamachali +6 more
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