Preliminary examination of the fracture surfaces of a cold working die

Statharas, D.; Sideris, J.; Medrea, C.

doi:10.1007/s12289-008-0087-z

Cited by 10 publications

(3 citation statements)

References 7 publications

(7 reference statements)

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“…Statharas et al. [35] have pointed out that the most common failure mechanism of tool/dies steel components like chipping, galling and cracking. is controlled by impact toughness.…”

Section: Resultsmentioning

confidence: 99%

Carbides precipitation and kinetics of H13 steel subjected to deep cryogenic treatment

Guo

et al. 2022

Materials Science and Technology

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The influence of deep cryogenic treatment (DCT) on carbides precipitation and isothermal softening behaviour as a function of both temperature and time during tempering of H13 steel was investigated. The results show that the retained austenite transformed into martensite leading to an increase in hardness. The carbon content of martensite decreased after DCT and tempering according to the calculation of the X-ray diffraction spectrum. This indicates that more fine carbides precipitated from the martensitic matrix after DCT. The morphology of microstructure and distribution of carbides have verified the properties improvement mainly depending on the retained austenite transformation and more fine carbides precipitated after tempering. In addition, the carbides precipitating and coarsening are the main causes of thermal softening.

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“…Statharas et al. [35] have pointed out that the most common failure mechanism of tool/dies steel components like chipping, galling and cracking. is controlled by impact toughness.…”

Section: Resultsmentioning

confidence: 99%

Carbides precipitation and kinetics of H13 steel subjected to deep cryogenic treatment

Guo

et al. 2022

Materials Science and Technology

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“…These steels must withstand abrasive or adhesive wear and have sufficient hardness, toughness and ductility to prevent chipping, galling, cracking, etc. [1].…”

Section: Introductionmentioning

confidence: 99%

Influence of Vacuum Heat Treatments on Microstructure and Mechanical Properties of M35 High Speed Steel

Soffritti

Fortini

Sola

et al. 2020

Metals

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Towards the end of the last century, vacuum heat treatment of high speed steels was increasingly used in the fabrication of precision cutting tools. This study investigates the influence of vacuum heat treatments at different pressures of quenching gas on the microstructure and mechanical properties of taps made of M35 high speed steel. Taps were characterized by optical microscopy, scanning electron microscopy with energy dispersive spectroscopy, X-ray diffraction, apparent grain size and Vickers hardness measurements, and scratch tests. Failure analysis after tapping tests was also performed to determine the main fracture mechanisms. For all taps, the results showed that microstructures and the values of characteristics of secondary carbides, retained austenite, apparent grain size and Vickers hardness were comparable to previously reported ones for vacuum heat treated high speed steels. For taps vacuum heat treated at six bar, the highest plane strain fracture toughness was due to a higher content of finer small secondary carbides. In contrast, the lowest plane strain fracture toughness of taps vacuum heat treated at eight bar may be due to an excessive amount of finer small secondary carbides, which may provide a preferential path for crack propagation. Finally, the predominant fracture mechanism of taps was quasi-cleavage.

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“…Among them, wear is the most common and most serious form. Therefore, in order to meet the requirements, it should possess high hardness, high wear resistance, enough toughness and good fatigue life [2][3][4]. Up to now, a lot of research has been reported for the improvement of properties and lifetime of cold working die steels.…”

Section: Introductionmentioning

confidence: 99%