Influence of Heat Treatment on Microstructure and Mechanical Properties of Cr8Mo2SiV Cold Work Die Steel: A Comparison with Cr12MoV Steel

Li, Shao Hong; Min, Na; Li, Jun Wan; Wu, Xiao Chun

doi:10.4028/www.scientific.net/amr.711.103

Cited by 4 publications

(1 citation statement)

References 10 publications

(11 reference statements)

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“…On the other hand, due to its great stability, large amounts of carbide in steel are difficult to remove during heat treatment once the eutectic carbides are generated. [11,12] As a result, it is extremely important to control eutectic carbides in metallurgy and solidification.…”

Section: Introductionmentioning

confidence: 99%

Morphology Refinement of Eutectic Carbides Assisted by Static Magnetic Field during Laboratory Electroslag Remelting Process

Ma,

Xia,

Sun

et al. 2023

steel research int.

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A transverse static magnetic field (TSMF) is implemented in a laboratory electroslag remelting (ESR) experiment to control eutectic carbides morphology of Cr8 die steel herein. Under action of a TSMF, the temperature distribution of the molten pool becomes homogeneous, the local solidification time is shortened, and the interdendritic region space shrinks, which result in an evenly spaced distribution of solute atoms and a reduction in interdendritic segregation. Therefore, the formation and subsequent growth of eutectic carbides are further inhibited, thereby causing the generation of smaller and more uniform distributed eutectic carbides due to the application of the TSMF. Moreover, the increase of the number of Al2O3–(Ti,V)N inclusions serves to be the heterogeneous nucleus of carbides (inclusions also become finer) caused by TSMF, which also contributes to the refinements of eutectic carbides in Cr8 ingots.

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Section: Introductionmentioning

confidence: 99%

Morphology Refinement of Eutectic Carbides Assisted by Static Magnetic Field during Laboratory Electroslag Remelting Process

Ma,

Xia,

Sun

et al. 2023

steel research int.

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Effect of Cooling Rates on the Characteristics of Carbides during Solidification of D2 Cold‐Work Die Steel

Liu

2022

steel research int.

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Characteristics of carbides, such as their shape, size, type, and structure, significantly affect the plasticity and toughness of D2 cold‐work die steel. The effect of variations in the cooling rate on characteristics of carbides during solidification of D2 cold‐work die steel is investigated. Characteristics of carbides solidified at various cooling rates are quantified by scanning electron microscopy, energy‐dispersive spectroscopy, and X‐ray diffraction. The quantity of M7C3 carbides increases, but their size and the layer spacing decrease as the cooling rate increases in the range of 0.3–4 °C s−1. The types of carbide are not affected by the cooling rate. The main type is M7C3, with small amounts of M23C6 and MC. The carbides mostly comprise hexagonal hollow bars. There are a few lamellar and curved bar structures. The formation mechanism of hexagonal hollow bar carbides is clarified. The growth of hexagonal hollow bar M7C3 carbides is primarily affected by the chromium content and temperature gradient. Carbides form planar shapes together with nucleation masses and subsequently grow within a lateral envelope of helical dislocations. The interior cavity of M7C3 bar carbides shrinks and becomes filled with austenite as the cooling rate increases, which results in thin hexagonal hollow bar carbides.

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Unraveling the Influence of Static Magnetic Field on Carbide Precipitation and Mechanical Properties in Large-Scale H13 Hot Work Die Steel

Ma,

Zhang,

Zhang

et al. 2024

Metall Mater Trans B

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Influence of Heat Treatment on Microstructure and Mechanical Properties of Cr8Mo2SiV Cold Work Die Steel: A Comparison with Cr12MoV Steel

Cited by 4 publications

References 10 publications

Morphology Refinement of Eutectic Carbides Assisted by Static Magnetic Field during Laboratory Electroslag Remelting Process

Morphology Refinement of Eutectic Carbides Assisted by Static Magnetic Field during Laboratory Electroslag Remelting Process

Effect of Cooling Rates on the Characteristics of Carbides during Solidification of D2 Cold‐Work Die Steel

Unraveling the Influence of Static Magnetic Field on Carbide Precipitation and Mechanical Properties in Large-Scale H13 Hot Work Die Steel

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