An investigation into the effects of conventional heat treatments on mechanical characteristics of new hot working tool steel

Fares, Mohamed Lamine; Athmani, M.; Khelfaoui, Youcef; Khettache, Abdelkader

doi:10.1088/1757-899x/28/1/012042

Cited by 17 publications

(14 citation statements)

References 18 publications

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“…The conventional thermo-mechanical process for the fabrication of H13 steel dies is as follows; homogenization, hot forging, annealing, machining, quenching, and double tempering [1,2]. The effects of the final heat treatment, quenching [3][4][5][6][7][8][9] and double tempering [3][4][5][6][7][8][9][10][11][12][13], on the microstructure and mechanical properties of H13 steel have been extensively studied because the heat treatment significantly influences the final mechanical properties of H13 steel dies.…”

Section: Introductionmentioning

confidence: 99%

The effects of annealing temperature and cooling rate on carbide precipitation behavior in H13 hot-work tool steel

Kang

Park

Jung

et al. 2015

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

The effects of annealing temperature and cooling rate on carbide precipitation behavior in H13 hot-work tool steel

Kang

Park

Jung

et al. 2015

Journal of Alloys and Compounds

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“…The properties renowned for allowing a material to better resist to thermal fatigue are low coefficient of thermal expansion, high thermal conductivity, high hot yield strength, good tempering resistance, high creep strength, high dimensional stability, resistance to shocks, adequate ductility and toughness [16,18] . The importance of these factors depends on the particular hot work process.…”

Section: Introductionmentioning

confidence: 99%

“…Considering the operational requirements of a process, a specifically tailored heat treatment procedure can allow enhancements on the hot work tool steel mechanical properties and microstructure to optimize its thermal fatigue resistance. There are some researches to obtain and/or predict the real behavior of steels under complex loading conditions, also [18,21] . Another work [22] more explicitly reveals that austenitizing and tempering treatments are collectively effective on the microstructure and fracture resistances.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Heat Treatments on the Fatigue Strength of H13 Hot Work Tool Steel

Yeşildal¹

2018

Preprint

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The fatigue strength of the hot work steel depends on various factors, including the mechanical, properties and behavior and bulk and the surface under layer, the microstructural features as well as heat treatments. The influence of a series of heat treatments on the fatigue strength of H13 hot work steel was investigated. Different preheating, quenching and tempering treatments were applied to four sets of specimens and fatigue tests were conducted at room temperature using a rotating bending test machine. All heat treatments resulted in a certain improvement of the fatigue strength. Highest fatigue strength obtained by applying a double tempering heat treatment (first tempering at 550 °C for two hours and second tempering at 610 °C for two hours) after initial preheating and quenching. One tempering treatment (550 °C for two hours after preheating and quenching) did not significantly improve the fatigue strength.

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“…Heat treatment is an important process to the manufacturing industry, as the mechanical properties of metals can be improved in various ways during the process. This modification has significant influence on the performance of the die material [1]. There are different ways to perform heat treatment hardening, such as pack carburization, gas carburization, vacuum heat treatment, induction heat treatment, and salt bath [2].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Heat Treatment Atmosphere on Hardening of Surface Region of H13 Tool Steel

Pasang¹,

Chen²,

Ramezani³

et al. 2013

MSCE

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The main objective of the die heat treatment is to enhance the surface hardness and wear properties to extend the die service life. In this paper, a series of heat treatment experiments were conducted under different atmospheric conditions and length of treatment. Four austenitization atmospheric conditions were studied and although each heat treatment condition resulted in a different hardness profile, it did not affect the results for gas nitriding. All samples subjected to the nitriding process produced similar thicknesses of hardened case layer with average hardness of 70-72 HRC if the initial carbon content is not too low. It was shown that heat treatment without atmospheric control results in a lower hardness on the surface since the material was subjected to decarburization effect. The stainless steel foil wrapping around the sample and heat treatment in a vacuum furnace could restrict the decarburization process, while pack carburization heat treatment resulted in a carburization effect on the material.

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An investigation into the effects of conventional heat treatments on mechanical characteristics of new hot working tool steel

Cited by 17 publications

References 18 publications

The effects of annealing temperature and cooling rate on carbide precipitation behavior in H13 hot-work tool steel

The effects of annealing temperature and cooling rate on carbide precipitation behavior in H13 hot-work tool steel

The Effect of Heat Treatments on the Fatigue Strength of H13 Hot Work Tool Steel

The Effect of Heat Treatment Atmosphere on Hardening of Surface Region of H13 Tool Steel

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