Effect of in situ formed TiCx grains on the microstructural modification of high chromium white iron

Jiang, Jipeng; Li, Shibo; Li, Haolin; Zhou, Yang

doi:10.1016/j.jallcom.2017.07.274

Cited by 26 publications

(2 citation statements)

References 32 publications

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“…The decomposed TiC particles, as a heterogeneous nucleation substrate, have better microstructure refinement effects to improve the mechanical properties [18,[25][26][27]. Although alloy Al-Ti-C is refined by TiC particles, it is not as easily aggregated and subjected to Zr, Cr and TiB [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Impact Abrasion Resistance Performances of White Cast Iron Utilizing Ti3AlC2

Dong

Xing

et al. 2022

Materials

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Al-Ti-C master alloy agent is currently the most promising grain refiner. This work investigates the influence of Ti3AlC2 addition (1.0–3.0 wt.%) on the microstructure of a hypoeutectic cast iron (4.7 wt.% Cr, 2.3 wt.% C). Microstructures of the samples were examined by SEM (scanning electron microscope). It was demonstrated that the added Ti3AlC2 did reduce the size of coarse primary carbides. The XRD (X-ray diffraction) pattern shows that Ti3AlC2 is decomposed into TiC in the alloy substrate. The EDS (energy dispersive spectrometer) interfacial element analysis shows that TiC combines well with the matrix interface. As the Ti3AlC2 amount was increased, the finest microstructure was achieved. When 2 wt.% Ti3AlC2 was added, the wear-resistance property of the material improved and became two times harder than the former. However, when 3% Ti3AlC2 was added, TiC gathered at the crystal boundary, which caused a decrease in the wear resistance of the material.

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Section: Introductionmentioning

confidence: 99%

Enhancement of Impact Abrasion Resistance Performances of White Cast Iron Utilizing Ti3AlC2

Dong

Xing

et al. 2022

Materials

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“…;Makarenko, K.V. 2010, Silman, G.I 1992, Dojka, M et al, 2018, Jiang et al, 2017, Bedolla-Jacuinde, A et al, 2005, Guo Erjun et al, 2009, Maja, M. E. et al, 2016, Liu et al, 2016, Bedolla-Jacuinde et al, 2015. One of the most effective means of the eutectic alloy product shape and microstructure transformation is hot plastic working in the process of which the eutectic net crushing occurs.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of Alloying Effect on the Eutectic Cementite Behavior Under Hot Rolling

Mironova

Пройдак

2019

New Trends in Production Engineering

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Currently, cast iron remains one of the major modern casting materials in metallurgy and machine-building industry and is sure to take the lead in the future. Chilled cast iron has high hardness and wear resistance due to a large number of carbide phases in its structure. However, low ductility and impact hardness essentially limit its applicability in terms of processing. Hot plastic working, under which the eutectic net crushing is observed, appears to be one of the most effective means of the eutectic alloy products shape and microstructure transformation. Chilled cast iron properties fundamentally improve after hot plastic working: ductility, strength and impact hardness increase by 2-3 times on retention of the high hardness factor. Chilled cast iron ductility increase can be attained when using phase transformations in eutectic cementite under lean alloying with carbide forming elements. The purpose of the paper is to study alloying effect on the chilled cast iron ductility as well as eutectic cementite behavior under hot rolling. In the paper hardening and softening of the structural components in chilled cast iron under hot working have been studied. The deformation texture forming in eutectic cementite under hot rolling has been revealed, which is connected with the dynamic softening and depends on the degree and the nature of its alloying. The mechanism and regularities of the phase transformation effect in cementite on its behavior under plastic deformation and on the alloys ductility in general have been studied. In cementite chromium alloying initiates processes, that can be characterized as the pre-precipitation stage of the new phases, and this way it contributes to the cast iron ductility reduction and embrittles cementite. Carbide transformation, that occurs in eutectic cementite under alloying with vanadium, stimulates softening of the alloy and increases its ductility level. Moreover, the multiple glide planes {130},{011},{112} in cementite have been determined. It has been found out, that in supersaturated cementite vanadium carbides precipitation stimulates the extra glide plane {111} occurrence under hot rolling. The essence of the carbide transformation phenomenon is that under hot working there occurs the lubricating effect at the transition of the metastable iron carbide condition, which is strengthened with vanadium supersaturation and mechanical hardening, to a more stable condition due to precipitation of the proeutectoid constituents on the one hand, and because of the dynamic softening processes on the other hand. At that, the autocatalyticity effect is observed: there is precipitation of carbides with hardening and softening, similar to the processes that arise as a result of the superplastic effect induced by phase transformations.

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Mechanotribological Aspects of MXene‐Reinforced Nanocomposites

2020

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MXenes are recently discovered 2D nanomaterial with superior mechanical, thermal, and tribological properties, being commonly employed in a wide variety of critical research areas, ranging from cancer therapy to energy and environmental applications. Due to their special properties, such as mechanoceramic nature with excellent mechanical performance, thermal stability and rich surface properties, MXenes have tremendous potential as advanced composite structures, especially those based on polymers due to a great affinity between macromolecules and the terminating groups of 2D MXenes. MXenes have been extensively explored in metal matrix nanocomposites as well as in solid‐ or liquid‐based lubrication systems owing to the 2D structure and antifriction characteristics. The purpose of the this paper is to provide a comprehensive insight into the material, mechanical, and tribological properties of the MXene nanolayers with discussions on the recent advancements attained from MXene‐reinforced nanocomposites starting with the synthesis, fabrication techniques, intricacies of the underlying physics and mechanisms, and finally focusing on the progress in computational studies. This analysis of MXene‐based composites will stimulate an emerging field with innumerable opportunities and ample potentials to produce newfangled materials and structures with targeted properties.

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Effect of in situ formed TiCx grains on the microstructural modification of high chromium white iron

Cited by 26 publications

References 32 publications

Enhancement of Impact Abrasion Resistance Performances of White Cast Iron Utilizing Ti3AlC2

Enhancement of Impact Abrasion Resistance Performances of White Cast Iron Utilizing Ti3AlC2

Peculiarities of Alloying Effect on the Eutectic Cementite Behavior Under Hot Rolling

Mechanotribological Aspects of MXene‐Reinforced Nanocomposites

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