Comparative research on the elevated-temperature wear resistance of a cast hot-working die steel

Wei, M. X.; Wang, F.; Wang, S.Q.; Cui, Xianghong

doi:10.1016/j.matdes.2009.02.023

Cited by 21 publications

(11 citation statements)

References 8 publications

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“…[11][12][13] Wang et al and Cui et al studied the effects of alloying elements, [14,15] rare-earth modification, [16] and second carbides [17,18] on the elevated-temperature wear of this cast steel. Wei et al [19] studied the wear behavior of the cast steel at 673 K (400°C) and discovered that the cast steel had a substantially higher wear resistance than H13 and H21 steels. No systematic investigation of the wear of the newly developed Cr-Mo-V cast steel has been reported, [13][14][15][16][17][18][19] and the wear behavior and wear mechanism are addressed in the current study.…”

Section: Introductionmentioning

confidence: 99%

“…Wei et al [19] studied the wear behavior of the cast steel at 673 K (400°C) and discovered that the cast steel had a substantially higher wear resistance than H13 and H21 steels. No systematic investigation of the wear of the newly developed Cr-Mo-V cast steel has been reported, [13][14][15][16][17][18][19] and the wear behavior and wear mechanism are addressed in the current study.…”

Section: Introductionmentioning

confidence: 99%

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Wear Behavior and Mechanism of a Cr-Mo-V Cast Hot-Working Die Steel

Wei

Wang

Zhao

et al. 2010

Metall Mater Trans A

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The wear behavior and mechanisms of a Cr-Mo-V cast hot-working die steel with three microstructures (tempered martensite, troostite, and sorbite) were studied systematically through the dry-sliding wear tests within a normal load range of 50 to 300 N and an ambient temperature range of 298 K to 673 K (25°C to 400°C) by a pin-on-disk high-temperature wear machine. Five different mechanisms were observed in the experiments, namely adhesive, abrasive, mild oxidative, oxidative, and extrusive wear; one or more of those mechanisms would be dominant within particular ranges of load and temperature. The transition of wear mechanisms depended on the formation of tribo-oxides, which was related closely to load and temperature, and their delamination, which was mainly influenced by the matrix. By increasing the load and ambient temperature, the protective effect of tribo-oxides first strengthened, then decreased, and in some cases disappeared. Under a load ranging 50 to 300 N at 298 K (25°C) and a load of 50 N at 473 K (200°C), adhesive wear was the dominant wear mechanism, and abrasive wear appeared simultaneously. The wear was of mild oxidative type under a load ranging 100 to 300 N at 473 K (200°C) and a load ranging 50 to 150 N at 673 K (400°C) for tempered martensite and tempered troostite as well as under a load of 100 N at 473 K (200°C) and a load ranging 50 to 100 N at 673 K (400°C) for tempered sorbite. At the load of 200 N or greater, or the temperatures above 673 K (400°C), oxidative wear (beyond mild oxidative wear) prevailed. When the highest load of 300 N at 673 K (400°C) was applied, extrusive wear started to dominate for the tempered sorbite.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wear Behavior and Mechanism of a Cr-Mo-V Cast Hot-Working Die Steel

Wei

Wang

Zhao

et al. 2010

Metall Mater Trans A

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“…In addition, the coatings also have nonmelting TiCs and partially melting TiC that retains the main characteristics of carbides. ey are fine particles and dispersed uniformly, improving the strength and the hardness of this coating [2]. e hardness changes and uneven distribution of S1, S2, and S3 coatings appear due to the existence of a large number of incompletely dissolved TiC particles and in situ TiC.…”

Section: Resultsmentioning

confidence: 99%

“…Especially at high temperatures, in addition to the oxygen process, the hardness and durability will be significantly reduced, and thermal expansion will change the organization of the coating. ese phenomena are complex but common forms of damage [1][2][3]. When using hotworking molds, the surface is required to have a hightemperature strength and toughness, especially the wear resistance thermal fatigue performance at high temperature.…”

Section: Introductionmentioning

confidence: 99%

Wear Properties of TiC‐Reinforced Co50 Composite Coatings from Room Temperature to High Temperature

Pham

Nguyen

2020

Advances in Materials Science and Engineering

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In this paper, the laser cladding is created by using Co50 powder and TiC mixture, covering a H13 hot-working steel substrate. The samples are analyzed by the hardness test, XRD, SEM, and friction test to identify the forming phases, microhardness distribution, and wear-resistant characteristics. The results indicated that hardness reduces from the coating zone to the substrate, achieving the highest value at the coating zone. Increasing the content of TiC results in improving the coating hardness. The coatings with 10%–20% TiC show high-quality surface morphology and macrograph. With 30% TiC, the hardness obtains a higher hardness, but the surface appears to crack. The microstructures of the coatings present a well-mixed and well-distribution of the TiC particle on the Co matrix. The friction coefficient of H13 steel and Co50 coating reaches the maximum value when the load is 50 N and mostly decreases with the increase in the load. The wear rates of H13 steel and Co50 coatings mainly increase with the increase in the load. The temperature has a greater influence on the friction coefficient of the Co50 coating. However, the temperature has a small effect on the friction coefficient of the 20% TiC coating. The wear resistance of 20% TiC coating is higher than that of H13 steel, Co50 coating, and 10% TiC composite coating. At room temperature, the wear mechanism of the coating is mainly brittle spalling, adhesive wear, and ploughing. At 700°C, the wear mechanism is mostly oxidation wear and fatigue wear. After laser cladding, the service life of the coated surface could be greatly improved. The Co + 20% TiC coating has high hardness and wear resistance.

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“…With the development of modern industry toward higher efficiency and better precision, the hot work die steel with excellent performance has received extensive attention [1][2][3][4]. In addition to mechanical stress during the die filling process, such as die casting, hot extrusion, hot forging and hot stamping, hot-work die steel also endures rapid heating and cooling impact when interacting with hot metals due to the extremely harsh and complex working environment [5,6]. The high-temperature conditions can influence the material microstructure significantly, which always deteriorates mechanical properties [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Design for Novel Hot-Work Die Steel by Thermodynamic Calculation and Microstructural Examination

Zhang

Yao

et al. 2019

Metals

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In this paper, a new type of hot-work die steel with excellent high-temperature mechanical properties at 700 °C was designed based on the traditional 25Cr3Mo3NiNb steel with the help of Thermo-calc software. The effects of C, Cr, Mo, W and V on the types and mass fractions of carbides were studied. Phase diagram calculation revealed that with the increase of V and W contents and the decrease of Cr content, the precipitation temperature and the mass fraction of M23C6 carbides decreased. Meanwhile, the mass fraction of MC carbides increased as the Mo content decreased. Based on the thermodynamic calculation, new material 25Cr3Mo2NiWVNb steel was designed. Compared to the 25Cr3Mo3NiNb steel, more finely dispersed MC and M2C carbides with high thermal stability, as well as fewer M23C6 carbides with low thermal stability, were precipitated in the new steel. The high-temperature tensile showed that the new steel showed high thermal stability and strength even at 700 °C. The high-temperature strengthening effect might be ascribed to the fine and stable nano-scale MC and M2C carbides which precipitated during tempering.

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Comparative research on the elevated-temperature wear resistance of a cast hot-working die steel

Cited by 21 publications

References 8 publications

Wear Behavior and Mechanism of a Cr-Mo-V Cast Hot-Working Die Steel

Wear Behavior and Mechanism of a Cr-Mo-V Cast Hot-Working Die Steel

Wear Properties of TiC‐Reinforced Co50 Composite Coatings from Room Temperature to High Temperature

Design for Novel Hot-Work Die Steel by Thermodynamic Calculation and Microstructural Examination

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