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

Taştemür, Demet; Gündüz, Süleyman

doi:10.1590/1980-5373-mr-2017-0564

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…Strain ageing strengthens the steel as a result of pinning dislocations by interstitial atoms present in the solid solution (mainly carbon and nitrogen atoms, [84] but could also be atoms of other elements, e.g. Cr [85] ). The rapid release of dislocations into the atmosphere was accompanied by a decrease in the stress-strain curve because these dislocations can continue their movement.…”

Section: B After Lcfmentioning

confidence: 99%

Studies of Bainitic Steel for Rail Applications Based on Carbide-Free, Low-Alloy Steel

Adamczyk‐Cieślak

Koralnik

Kuziak

et al. 2021

Metall Mater Trans A

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This paper describes the development and characterisation of bainitic steel for rail applications based on carbide-free, low-alloy steel. The results show that after rolling and subsequently cooling, the designed carbide-free bainitic steel exhibits better mechanical performance than standard pearlitic steel. This is because of its fine, carbide-free bainitic microstructure, which consists of bainitic ferrite and retained austenite laths. Microstructural and mechanical property analysis was carried out using scanning and transmission electron microscopy, X-ray diffraction, hardness measurements, tensile and low-cycle fatigue tests. The obtained results demonstrate that during low cyclic deformation, a partial transformation of the retained austenite into deformed martensite α′ takes place, and strain-induced martensitic transformation occurs. The initial strengthening of the material during low-cycle fatigue was caused by the transformation of austenite into martensite and the increase in the dislocation density of the steel. In addition, an optimal amount of retained austenite in the form of thin layers and islands (dimensions not exceeding 1 µm) made it possible to obtain a high yield while maintaining the high plasticity of the steel. These microstructural features also contributed to the high crack resistance of the tested carbide-free bainitic steel.

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Section: B After Lcfmentioning

confidence: 99%

Studies of Bainitic Steel for Rail Applications Based on Carbide-Free, Low-Alloy Steel

Adamczyk‐Cieślak

Koralnik

Kuziak

et al. 2021

Metall Mater Trans A

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“…They found that the strength values decreased slightly in the range of 25-500°C, but in the tensile test performed over 500°C, the decrease in strength values accelerated. In addition, Taştemür and Gündüz [21] studied tensile properties of AISI H10 steel in the temperature range of 25-700°C under as-quenched conditions. The tensile properties showed an increase in YS and UTS of asquenched samples tested at 200 or 300°C consistent with DSA.…”

Section: Resultsmentioning

confidence: 99%

Effect of Grain Size and Deformation Temperature on Mechanical Properties and Failure Behaviour of 316L Austenitic Stainless Steel

Katiksiz¹,

Gündüz²

2021

Metallofiz. Noveishie Tekhnol.

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In this work, the effects of grain size and deformation temperature on mechanical properties and failure behaviour of 316L austenitic stainless steel (ASS) are investigated. The cold, warm and hot deformation are carried out at temperatures of 25, 500, and 800°C for the strain rate of 1⋅10 −3 s −1 . The results show that strength and workhardening index of all samples decrease with increasing test temperature; however, decrement in strength and workhardening index is more less in coarse grained samples compared to the finer grained samples. This is due to dynamic strain ageing (DSA) occurred in the coarse grained samples which showed more pronounced serrated behaviour after testing at 500 or 800°C due to interaction of mobile dislocations and solute atoms.

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“…M 6 C carbide has been considered an iron-tungsten carbide that dissolves the minute magnitude of chromium and vanadium. However, M 23 C 6 and M 7 C 3 have been considered chromium-rich carbides [39].…”

Section: Chemical Composition Of Diferent Constituents Of the Investi...mentioning

confidence: 99%

“…MC carbide has been identifed as a facecentered cubic carbide and corresponds to a vanadium-rich carbide of composition ranging from VC to V 4 C 3 . Moreover, MC-carbide can dissolve many other alloying elements (tungsten, molybdenum, chromium, and iron) [39]. Table 3 shows that partially substituted tungsten by vanadium causes MC monocarbide to precipitate with a lower amount of tungsten, iron, and chromium.…”

Section: Carbidementioning

confidence: 99%

Study on the Microstructure of Vanadium-Modified Tungsten High-Speed Steel-Coded SAE-AISI T1 Steel

Halfa

Seikh

Abdo

et al. 2022

Advances in Materials Science and Engineering

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The essential goal of this research is to evaluate the modification process on phase transformation, matrix chemical composition, and precipitated carbide types for modified SAE-AISI T1 steel and their effects on the hardness values after optimum heat treatment conditions. This research adopts the alloying design strategy to enhance one of the most important tools steel coded SAE-AISI T1 (T12001). Therefore, two alloying enhancement processes took place through partial or total tungsten replacement. Investigated steel was modified first through the addition of vanadium and then through the addition of vanadium and carbon. Substitute 5 wt modified SAE-AISI T1 steel. % tungsten with 1 wt. % vanadium, in addition to carbon content, varied from 0 to 1 wt. %. Therefore, to fulfill the goals of this work, Thermo-Calc software was utilized to get the following: (i) thermodynamic equilibrium information, (ii) the expected microstructure, (iii) the constituent volume fraction, and (iv) carbide chemical composition. The chemical composition of the expected phases was confirmed by scanning electron microscopy (SEM) equipped with energy-dispersive X-ray (EDX). In addition, volume fractions of different constituents were estimated by using Thermo-Calc software and authenticated by the imaging analysis process. The experimental findings for the variations in the chemical composition of the matrix and eutectic carbides precipitated, e.g., MC and M6C carbides, agree well with the calculated findings. Tungsten replacement by vanadium with and without extra carbon at traditional SAE-AISI T1 steel encourages MC carbide formation instead of M6C, M23C6, and M7C3 carbides. MC carbide precipitated in vanadium with extra carbon-modified steel contains more carbon, chromium, and tungsten but less vanadium compared with vanadium-modified steel. Vanadium with extra carbon-modified steel precipitated more M6C carbide and gamma-austenite. Hardness measurements emphasized that modified steel is a promising material for its use as a tooling material with low tungsten content and, in turn, produces cutting-tool materials with economical cost.

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

Cited by 8 publications

References 23 publications

Studies of Bainitic Steel for Rail Applications Based on Carbide-Free, Low-Alloy Steel

Studies of Bainitic Steel for Rail Applications Based on Carbide-Free, Low-Alloy Steel

Effect of Grain Size and Deformation Temperature on Mechanical Properties and Failure Behaviour of 316L Austenitic Stainless Steel

Study on the Microstructure of Vanadium-Modified Tungsten High-Speed Steel-Coded SAE-AISI T1 Steel

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