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Twinning-related grain boundary engineering

WebThe interface structure of polycrystalline metallic materials, such as grain boundaries, subgrain boundaries, twin boundaries and twist transition boundaries (Gong et al, 2024;Zhang et al, 2012;Li et al, 2011), strongly influences mechanical (Zhu & Chen, 2024;Liu et al, 2014), electronic/optoelectronic (Hu et al, 2024) and thermal properties.…” WebDec 15, 2024 · Through-thickness microstructural evolution during grain boundary engineering type thermomechanical processing and its implication on sensitization behavior in austenitic stainless steel. United ... as confirmed by twinning-related domain and fractal analysis, cause more sensitization at interior of this specimen. In spite of ...

Grain Growth Control in Grain Boundary Engineered Microstructures …

WebOct 25, 2009 · In the last few years there has been a resurgence of interest in thermomechanical processing related to annealing twinning, usually known as ‘grain … WebMay 24, 2024 · Deformation twinning from grain boundaries is often observed in face-centered cubic ... 10%, 20%, and 30% engineering ... the Schmid factor ratio is still strongly … thomas alexander palmer https://paceyofficial.com

Nanomaterials Free Full-Text Effect of De-Twinning on Tensile ...

WebNov 1, 1999 · Mechanism of twinning-induced grain boundary engineering in low stacking-fault energy materials 1. Introduction. It is a central tenet of process metallurgy that … WebMay 27, 2024 · Polycrystalline α iron has been used in various applications, yet its microstructure design via grain boundary engineering (GBE) is not well established. One … WebJun 29, 2024 · Grain boundary engineering (GBE) treatment was performed through thermomechanical processing (TMP) to optimize the grain boundary character distribution (GBCD) of 316L austenitic stainless steel. The effects of TMP on the GBCD and corrosion fatigue properties in high-temperature and high-pressure water were investigated. The … thomas alfadhili marchel

Materials Free Full-Text Influence of Grain Size and Its ...

Category:Effects of Grain Boundary Engineering on the Microstructure and ...

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Twinning-related grain boundary engineering

Mechanism of twinning-induced grain boundary …

WebGrain boundary engineering of Fe-based austenitic stainless steels and other materials has been successful in producing a large increase in twin and twin related grain boundaries from a wide range of thermomechanical treatments. However, the exact mechanisms and ef WebTwinning is a key deformation mechanism in face-centered-cubic (fcc)-based and some body-centeredcubic (bcc)-based alloys, which imparts excellent strength-ductility combination by increasing strainhardenability. Typically, twinning in fcc-based alloys increases when the stacking fault energy is lowered via changes in composition.

Twinning-related grain boundary engineering

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WebJan 8, 2024 · 18Mn18Cr0.5N steel with an initial grain size of 28–177 μm was processed by 2.5%–20% cold rolling and annealing at 1000℃ for 24 h, and the grain boundary character distribution was examined via electron backscatter diffraction. Low strain (2.5%) favored the formation of low-Σ boundaries. At this strain, the fraction of low-Σ boundaries was … WebJan 22, 2024 · Grain boundary engineering (GBE) is one of the most successful processing strategies to improve the properties of polycrystalline solids. However, the extensive …

WebThis overview reports the fundamental concepts of grain boundary engineering (GBE) accompanied by a critical appraisal of GBE investigations. The main conclusions are as … WebJan 31, 2011 · Importance of the Twin Related Domains for Grain Boundary Engineering The mathematics required for multiple twinning have been progressively introduced since …

WebThe current status of "grain boundary engineering" is overviewed, i.e. the deliberate manipulation of grain boundary crystallography in polycrystals in order to produce a … WebNov 18, 2024 · Fig. 1: Twinning-assisted dynamic adjustment of grain boundary structure and mobility. a As-fabricated Au bicrystal with a 23° [1 \ (\bar {1}\) 0] tilt grain boundary (GB) denoted as GB 1-2 ...

WebApr 12, 2024 · The goal of this PhD is to unveil the relationship between processing parameters, structure and chemistry of the grain boundaries, and triggering of mechanical twinning, by coupling experimental approaches and simulation. To reach this end, alloys with compositions Ti-15Mo, Ti-15Mo-xO and Ti-15Mo-1.5Sn (wt.%), with various …

WebApr 5, 2024 · In this paper, we report an in situ study regarding the microstructural evolution of a Cr20Ni80 alloy with high proportional twin boundaries by using electron backscatter … thomas alfordhttp://ijmmm.ustb.edu.cn/en/article/doi/10.1007/s12613-018-1641-4 thomas alfie has kittensWebApr 11, 2024 · The GB-related properties of materials can be enhanced by exercising control over the population of low Σ ... the Σ of {112} symmetric boundary is Σ3.The mechanism of most GB engineering relies on prolific twinning, where twins are one type of Σ3 boundary, ... “ Mechanisms of grain boundary engineering,” Acta Mater. 54(7), ... thomas alexandre