Three-dimensional geometrical and topological characteristics of grains in conventional and grain boundary engineered 316L stainless steel

Liu, Tingguang; Xia, Shuang; Zhou, Bangxin; Bai, Qingshun; Rohrer, Gregory S.

doi:10.1016/j.micron.2018.04.002

Cited by 7 publications

(4 citation statements)

References 51 publications

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“…As a result, according to Fig. 3, the size distribution of the Al 10 V phase conforms to a lognormal distribution [5] . The corresponding lognormal distribution probability density function can be described by equation ( 2) [5] .…”

Section: Resultsmentioning

confidence: 68%

“…3, the size distribution of the Al 10 V phase conforms to a lognormal distribution [5] . The corresponding lognormal distribution probability density function can be described by equation ( 2) [5] . (1) in which, v e is the average solidification cooling rate, ℃•s -1 ; and d is the distance from the tip of the "wedge-shaped" mold along its centerline, mm.…”

Section: Resultsmentioning

confidence: 91%

“…The size distribution of the Al 10 V phases in Figs. 2 (a), (b) and (i) can be induced by a normalization method [5] as shown in Fig. 3.…”

Section: Resultsmentioning

confidence: 99%

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Effect of cooling rate on the size fluctuation of V-containing phases in Al-V master alloys

et al. 2022

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To investigate the relationship between the solidification cooling rate and the size fluctuation of different V-containing phases, Al-4 wt. % V master alloys with various V-containing constituents were prepared at different cooling rates carried out by a wedge-shaped water-cooled copper mold, a graphite mold and a refractory mold at 1050°C, respectively. The variance of lognormal density function was used to characterize the size fluctuation of V-containing phases quantitatively. The results show that the largest size difference of both Al10V phases and Al3V phases is simultaneously present in the ingot prepared by the average solidification cooling rate of 2°C·s-1, while the smallest difference of Al10V phases in size is present in the ingot prepared by the average solidification cooling rate of 271°C·s-1. The size fluctuation of the Al3V phases first increases slightly and then decreases with increasing average solidification cooling rate in the range of 30~195°C·s-1.

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Section: Resultsmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 91%

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Effect of cooling rate on the size fluctuation of V-containing phases in Al-V master alloys

et al. 2022

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“…Moreover, the grain boundaries are regarded as the other obstacles for the IGSCC owing to the shield of dislocation motion. For the type 316L non-sensitized austenitic stainless steel, the grain boundaries usually contain various microscopic defects such as dislocations, vacancies, precipitates and so on 28 , 29 . The dislocations act as the mass transport paths 13 , 30 , leading to the faster diffusion of the CEPs on the grain boundaries than inside the grains.…”

Section: Discussionmentioning

confidence: 99%

Probing intergranular mixed transgranular stress corrosion cracking under the high constant load

Zhu

2022

Sci Rep

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Stress corrosion cracking (SCC) of non-sensitized austenitic stainless steel during immersion of MgCl2 solutions was investigated by X-ray computed tomography and scanning electron microscopy. SCC cracks propagated transgranularly at the initial stage, and switched to the IGSCC mode under the high constant load. There was no ductile dimple present on the SCC fractography, but numerous cleavage facets, slip bands and pits emerged. The cohesive zone appeared ahead of the crack tip. It is indicated that the high-load SCC also coincides with the cleavage dissolution mechanism, predominantly originating from the corrosive environment particle assisted cleavage and the obstacle induced dislocation pinning.

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Three-dimensional observations of grain volume changes during annealing of polycrystalline Ni

et al. 2019

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Three-dimensional geometrical and topological characteristics of grains in conventional and grain boundary engineered 316L stainless steel

Cited by 7 publications

References 51 publications

Effect of cooling rate on the size fluctuation of V-containing phases in Al-V master alloys

Effect of cooling rate on the size fluctuation of V-containing phases in Al-V master alloys

Probing intergranular mixed transgranular stress corrosion cracking under the high constant load

Three-dimensional observations of grain volume changes during annealing of polycrystalline Ni

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