Effects of conventional heat treatment on wear resistance of AISI H13 tool steel

Bahrami, Abbas; Anijdan, S.H. Mousavi; Golozar, M.A.; Shamanian, M.; Varahram, N.

doi:10.1016/j.wear.2004.09.008

Cited by 92 publications

(36 citation statements)

References 10 publications

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“…Therefore, increasing the impact toughness of dies is extremely important to increase the life of hot work die steels. To solve this problem, many studies have been done on the high temperature strength and the impact toughness of hot work die steels and a number of new types of hot work tool steels have been developed to improve such properties, They have found that the failure of H13 steel is mainly caused by the large and strip inclusions and the coarse microstructure [6][7][8][9][10]. These defects result in the increasing of brittleness of die and early cracking.…”

Section: Introductionmentioning

confidence: 99%

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Gao

Liu

et al. 2015

Metals

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Studies of H13 steel suggest that under appropriate conditions, additions of rare-earth metals (REM) can significantly enhance mechanical properties, such as impact toughness. This improvement is apparently due to the formation of finer and more dispersive RE inclusions and grain refinement after REM additions. In this present work, the microstructure evolution and mechanical properties of H13 steel with rare earth additions (0, 0.015, 0.025 and 0.1 wt.%) were investigated. The grain size, inclusions and fracture morphology were systematically studied by means of optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicate that REM addition of 0.015 wt.% can result in good improvement of performance compared to the REM additions of 0.025 wt.% and 0.1 wt.%. It is found that the impact toughness is significantly enhanced with the addition of 0.015% REM, which can be improved 90% from 10 J to 19 J. Such an addition of REM can result in a huge volume fraction of finer and more dispersive inclusions which are extremely good to toughness.

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Section: Introductionmentioning

confidence: 99%

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Gao

Liu

et al. 2015

Metals

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“…2 also shows EDS analysis with the spectrum points 1-5 marked on the microstructure of AR samples tested at 400°C. Points 1-3 contains Mo and C, point 4 contains Cr and C. The presence of these elements indicates that M 6 C (Mo 6 C) and M 23 C 6 (Cr 23 C 6 ) occurred in H10 tool steel under AR condition and contributed to high temperature resistance between 200-400°C as suggested by Bahrami et al 9 . Such carbides forming elements may also interfere with the interstitial atoms and cause dynamic strain aging.…”

Section: Resultsmentioning

confidence: 80%

The Effect of Heat Treatment on Dynamic Strain Aging Behaviour of AISI H10 Hot Work Tool Steel

Taştemür

Gündüz

2017

Mat. Res.

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Dynamic strain aging (DSA) behaviour of hot work tool steel (H10) was investigated under asreceived (AR) and as-quenched (AQ) conditions. Hot tensile test was carried out in the temperatures of 25°C-700°C at a strain rate of 1x10 -3 s -1 . The tensile properties indicated that AQ samples showed an increase in yield strength (YS) and ultimate tensile strength (UTS) but a decrease in elongation at 200°C or 300°C consistent with DSA. However, AR samples revealed a decrease in YS and UTS for the same testing temperatures. This indicated the presence of less amount of free C or N in solution of AR samples. Further increase in the testing temperature has increased the elongation. It is believed that DSA occurs in H10 tool steel at different temperatures because of interaction between dislocations and interstitial solute atoms (C or N) or substitutional atoms (Cr or Mo).

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“…It is believed that the precipitate M 7 C 3 is formed by the transformation of M 3 C 17) , which is usually replaced by M 7 C 3 when the temperature increases. One or more types of transitional carbides may form during annealing before the stability is achieved 8) . The thermodynamic stability region of M 6 (C, N) in this steel is narrow, which cause the mass fraction of M 6 (C, N) is less than that of M 7 C 3 and M(C, N).…”

Section: Quantitative Chemical Analyses Of Carbides In Different Heatmentioning

confidence: 99%

“…The morphology and distribution of carbides in H13 steel had been improved obviously after cryogenic treatment 6) . Several efforts had been made to illustrate the improvement of carbides in H13 steel [7][8][9] , however, few studies focoused on the precipitation and evolution of carbides in H13 steel during each stage of heat treatment. Ning 10) reported that the types of precipitates of H13 are mainly Crrich M 23 C 6 and V-rich MC during annealing process.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Carbides in H13 Steel in Heat Treatment Process

Wang

Shi

et al. 2017

Mater. Trans.

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In the present work, the carbides in H13 steel were investigated with scanning electron microscope (SEM), energy dispersive spectrum (EDS), X-ray diffraction (XRD), and quantitative analysis method. The experimental results were compared with the calculation results by Thermo-calc software. The results show that the dendritic segregation exists generally in H13 ingots, primary M(C, N), M 6 (C, N) and a small amount of secondary carbides M 7 C 3 precipitate in the segregation area. The composition segregation is improved after annealing and forging process. A large amount of secondary carbides M 7 C 3 precipitate in the segregation area after annealing process. Primary carbide M 6 (C, N) are almost dissolved and M(C, N) are partially dissolved in the forged and annealed H13 steel. Most of carbides in the quenched and tempered H13 steel are ne secondary M 6 (C, N), M 23 C 6 and M(C, N), besides a small amount of primary M(C, N) with smaller size. The evolution mechanism of carbides in heat treatment process was clari ed by the calculated results.

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Effects of conventional heat treatment on wear resistance of AISI H13 tool steel

Cited by 92 publications

References 10 publications

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

Effects of Rare Earth on the Microstructure and Impact Toughness of H13 Steel

The Effect of Heat Treatment on Dynamic Strain Aging Behaviour of AISI H10 Hot Work Tool Steel

Evolution of Carbides in H13 Steel in Heat Treatment Process

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