Comparison of wear properties of tool steels AISI D2 and O1 with the same hardness

Bourithis, L.; Papadimitriou, G.; Sideris, J.

doi:10.1016/j.triboint.2005.03.005

Cited by 122 publications

(53 citation statements)

References 33 publications

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“…The PoD test rotates the semispheric point of the pin sample against the WC disk so the same sample area is always in contact, increasing the temperature by friction and creating the oxide layer. The volume loss decreases when the oxidative wear mechanism takes part [17] so the 2 to 6 times smaller volume loss for the PoD case can be caused by this oxidative wear mechanism.…”

Section: Resultsmentioning

confidence: 98%

Pin on disk against ball on disk for the evaluation of wear improvement on cryo-treated metal cutting shears

Jimbert

Iturrondobeitia

Ibarretxe

et al. 2015

AIP Conference Proceedings

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Abstract. When talking about trybology, the election of the laboratory experiment type is a common problem of discussion. Laboratory wear methods are not designed to exactly reproduce the real working conditions of the analyzed part itself but serve to engineers and researcher to extrapolate the laboratory results to the real application. In order to shed some light on this issue, two wear tests have been analyzed following an ASTM standard and using the same experimental parameters and testing pair-materials in order to be able to make a comparison: Pin-on-Disk (PoD) against Ball-on-Disk (BoD). Three different tool steel have been analyzed in this study, AISI D2, AISI A8 and AISI H13, used to produce metal cutting shears. Metal on metal dry sliding tests were designed in order to reproduce the tool working conditions. These three materials were cryogenically treated and compared against no cryogenically treated ones to measure the improvement on their wear resistance due to cryogenic treatment. Finally, the wear rates obtained with both laboratory tests were compared against some real production metal cutting tools wear data. Results revealed an improvement of the wear resistance for cryo-treated samples of around 20% with the BoD test and around 6% with the PoD test. Real production tools wear was calculated for one of the tool steels and for two different applications. The improvement was approximately the one revealed by the BoD test. So, for the studied case, the BoD laboratory test gives more realistic prediction of real tool life improvement due to the cryogenic treatment.

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Section: Resultsmentioning

confidence: 98%

Pin on disk against ball on disk for the evaluation of wear improvement on cryo-treated metal cutting shears

Jimbert

Iturrondobeitia

Ibarretxe

et al. 2015

AIP Conference Proceedings

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“…In this figure, a series of scratches and pitting are observed. The parallel wears created on two surfaces are the result of micro-ploughing abrasive wear mechanism [25,26]. The particles sticking to the surface, which are in fact the result of wear, indicate the adhesive wear mechanism [27][28][29][30].…”

Section: The Wear Testmentioning

confidence: 99%

EFFECTS OF CRYOGENIC TREATMENT ON MICROSTRUCTURE AND WEAR RESISTANCE OF Fe-0.35C-6.3Cr MARTENSITIC STEEL

Sehri

Ghayour

Amini

et al. 2018

Acta Metall Slovaca

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The study is conducted to determine the effect of quenching and tempering processes on microstructural evolutions and abrasive properties of medium carbon-high chromium steel. For this purpose, Austenitizing was performed at the temperatures of 1000 °C for 15 min followed by oil quenching. To determine the optimum tempering temperature, tempering temperatures were selected in the temperature ranges of 350-550°C. The samples cryogenically treated immediately after quenching in liquid nitrogen (-196°C) for 24 hrs. Dry sand/rubber wheel test was used to evaluate the wear resistance properties. Microstructural observation, fractography and retain austenite was evaluated by optical and scanning electron microscopy and X-ray diffraction analysis. The results show that the best wear resistance can be obtained at the tempering temperature of 500°C, due to the reduction of a tendency to micro-cracking, decrease in internal stresses and improvement of impact energy. Observation of the worn surfaces revealed that the wear mechanisms after tempering at 450°C are a combination of abrasive, adhesive and fatigue wear. However, abrasive wear is the only active wear mechanism for specimen tempered at 500°C. In addition, wear resistance of deep cryogenically treated sample was significantly increased (about 25%) by the removal of retained austenite and formation of uniform fine carbides distribution in the matrix.

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“…São materiais caracterizados por uma menor tendência a distorções e trincas no tratamento térmico de têmpera sendo, por isso, eventualmente denominados aços indeformáveis, indicados para aplicações nas quais um cuidadoso controle dimensional é exigido [3]. Nesse contexto, comparando com os demais grupos de aços ferramenta, as ligas para trabalho a frio são muitas vezes apontadas como as mais importantes dessa classe de materiais metálicos [4]. As propriedades mencionadas são relacionadas à microestrutura do material, constituída por uma matriz de martensita revenida, de alto teor de carbono, dura e relativamente tenaz, e carbonetos, também duros e estáveis, podendo ser de dimensões reduzidas e finamente dispersos ou exibir características opostas [5,6].…”

Section: Introductionunclassified

Caracterização De Aços Ferramenta Para Aplicação Em Cilindros De Laminação a Frio

Rodrigues¹,

Costa²,

Lopes³

et al. 2018

ABM Proceedings

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ResumoOs aços ferramenta para trabalho a frio são utilizados em diversas aplicações em decorrência de propriedades como elevada estabilidade dimensional, alta resistência ao desgaste e elevada temperabilidade. Tais características estão diretamente associadas à microestrutura do material, isto é, à quantidade, à distribuição, ao tipo e à morfologia dos carbonetos presentes e à quantidade de martensita revenida e austenita retida. Neste contexto, no presente trabalho foram caracterizados mecanicamente e microestruturalmente quatro aços ferramenta para trabalho a frio empregados na fabricação de cilindros de laminação a frio. Para isso, amostras foram retiradas dos próprios cilindros e foram realizadas análises de dureza, microscopia óptica, microscopia eletrônica de varredura, espectroscopia por energia dispersiva e espectroscopia de emissão atômica por plasma. De acordo com resultados, uma comparação entre as propriedades dos aços foi conduzida visando concluir qual deles é o mais adequado para a referida aplicação. Palavras-chave: Aços ferramenta para trabalho a frio; Dureza; Microestrutura, Cilindro de laminação. CHARACTERIZATION OF TOOL STEELS FOR ROLLING MILL ROLLS AbstractCold work tool steels are widely used in various applications due to properties such as high dimensional stability, high wear resistance and high hardenability. These characteristics are associated with their microstructure, involving the quantity, the distribution, the type and the morphology of the carbides, as well as the quantity of retained austenite and martensite. The aim of this work was to analyze four cold work tool steels used in rolling mill rolls. Samples were taken from the own rolling mill rolls and hardness tests, optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and atomic emission spectroscopy were carried out. According to the results, a comparison of the properties of steels was conducted in order to conclude which one is more suitable for such application.

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Comparison of wear properties of tool steels AISI D2 and O1 with the same hardness

Cited by 122 publications

References 33 publications

Pin on disk against ball on disk for the evaluation of wear improvement on cryo-treated metal cutting shears

Pin on disk against ball on disk for the evaluation of wear improvement on cryo-treated metal cutting shears

EFFECTS OF CRYOGENIC TREATMENT ON MICROSTRUCTURE AND WEAR RESISTANCE OF Fe-0.35C-6.3Cr MARTENSITIC STEEL

Caracterização De Aços Ferramenta Para Aplicação Em Cilindros De Laminação a Frio

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