Solidification and Boride Characteristics of Boron-Containing Austenitic Stainless Steel

Wang, Ming Jia; Bao, Er; Wang, Zi Xi; Zhang, Shang Yi; Chen, Chu; Li, Yanmei; Wei, Hong Yu

doi:10.4028/www.scientific.net/msf.704-705.563

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…Although 1D boron substructures are arranged in 12 topological types (Tables , S3, Figures , and ), simple chains of the 2C1 topology are realized in 80% cases. In Me 5 B 6 (Me = Nb, Ta) and Cr 2 Ni 3 B 6 , two most frequent 1D motifs, 2C1 and 2,3C1, exist together, and in ErMoB 3 , the 2C1 chains coexist with the 2D hcb layers. Advantages of the topological classification are clearly seen on the example of a rare 2,3 4 C3 topology, which occur only in two borides of different structure types: U 5 Mo 10 B 24 and CeMo 2 B 5 .…”

Section: Resultsmentioning

confidence: 99%

Boron Substructures in Inorganic Borides: Network Topology and Free Space

Medrish

Блатов

2023

Crystal Growth & Design

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We have analyzed polymeric boron substructures in all 1154 robust inorganic borides from the Inorganic Crystal Structure Database using topological and geometrical models as implemented in the ToposPro program package. We have classified all boron substructures into 63 topological types of atomic networks depending on the method of connection and discriminated them by periodicity into molecular, chain, layer, or framework motifs. We have revealed topological relations between boron motifs of different topologies and periodicities and found the boron substructures that can serve as templates for assembling motifs of a more complicated topology and/or a higher periodicity. We have applied the natural tiling approach to find all cages in a particular boron substructure and estimated the size of these cages with Voronoi polyhedra. The sizes of all metal atoms, which occur in the inorganic borides, have also been calculated in the same way. As a result, we have explained the composition of some borides and showed that the combined geometrical−topological approach helps one to estimate the feasibility of possible new boride structures and to refine the conditions for the synthesis or to prepare initial structural data for the subsequent predictive modeling.

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Section: Resultsmentioning

confidence: 99%

Boron Substructures in Inorganic Borides: Network Topology and Free Space

Medrish

Блатов

2023

Crystal Growth & Design

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“…Fractography of the test specimens confirmed a dimple rupture typical for austenitic steels. It has been reported that the size and depth of dimples are closely connected with tensile toughness [27,28]. As the grain size increases, the size and the depth of dimples increase as well.…”

Section: Grain Size Effectmentioning

confidence: 96%

“…Depending on the alloying concept of austenitic stainless steel, the critical boron content is around 1 wt. %B [27]. Nonetheless, differential scanning calorimetry (DSC) was conducted to get a closer look at liquid-solid phase transformation during solidification.…”

Section: Delta Ferrite and Sigma Phase Embrittlementmentioning

confidence: 99%

Aspects of Bending High-Borated Austenitic Stainless Steel Sheets for Interim Storage of Spent Nuclear Fuel

Odehnal

Studecký

Čejková

et al. 2023

Metals

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The presented work is aimed at the evaluation of the cold bending capacity of high-borated austenitic stainless steel sheets. Due to their excellent neutron-absorbing capability, borated stainless steels belong to the group of tailor-made structural materials widely used for vertical storage baskets for holding spent nuclear fuel assemblies in cooling pools at dry or wet storage facilities. The basket consists of individual fuel assembly cells. Each polygonal cell is usually welded from several steel strips. It would be advantageous to use bent steel semi-product to avoid welded seams as much as possible. Welded seams are difficult to make, and moreover, they are susceptible to corrosion. However, high-borated stainless steels, because of their boron content, show limited hot and cold workability. Thus, their cold bending capacity would be the primary issue. Their austenitic matrix with embedded hard and brittle boride particles is prone to the evolution and fast propagation of dimple transgranular fracture. This work is focused on the bending aspects of borated steel sheets with respect to the most commonly used hexagonal cell geometry. Experimental results provide practical recommendations for the rack design. The damage criterion has also been proposed using FEM simulations in DEFORM®.

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Solidification microstructure of high borated stainless steels with rare earth and titanium additions

Liu

Wang

et al. 2019

Rare Met.

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Solidification and Boride Characteristics of Boron-Containing Austenitic Stainless Steel

Cited by 4 publications

References 3 publications

Boron Substructures in Inorganic Borides: Network Topology and Free Space

Boron Substructures in Inorganic Borides: Network Topology and Free Space

Aspects of Bending High-Borated Austenitic Stainless Steel Sheets for Interim Storage of Spent Nuclear Fuel

Solidification microstructure of high borated stainless steels with rare earth and titanium additions

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