Wear behaviour of 1.5Mn austel11pered ductile iron

Owhadi, A.; Hedjazi, J.; Davami, P.

doi:10.1179/026708398790301557

Cited by 4 publications

(5 citation statements)

References 6 publications

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“…Acicular ferrite morphology and high amounts of retained austenite are responsible for the good wear resistance of ADI [1,13,29]. It is reported that, retained austenite contributes to superior wear resistance by strain hardening [30] and/or strain-induced martensite transformation [13,14,[31][32][33] mechanisms.…”

Section: Fig 4 Hardness and Tensile Test Results Of As-cast And Ausmentioning

confidence: 99%

“…5). Owhadi et al [32] also observed an increase in abrasive wear resistance of a 1.5 Mn containing ductile iron with increasing austempering time. Shah et al [30] observed a decrease in the erosive wear rate of austempered ductile iron with increasing ductility, and obtained a maximum value of erosive wear resistance where the ductility is almost the highest.…”

Section: Wear Testsmentioning

confidence: 86%

“…, the increase in wear resistance with increasing austempering time can be attributed to a decrease of untransformed austenite regions (Fig 2). It is reported that 5-10% of the untransformed austenite volume is beneficial to the abrasive wear resistance [32]. Fig.…”

Section: 3)mentioning

confidence: 97%

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The effect of austempering time on mechanical properties of a ductile iron

Baydoğan

Çi̇menoǧlu

2001

Scand Jof Metallurgy

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In this study, the effects of austempering treatment on hardness, tensile properties and wear resistance of a ductile iron were examined. Austempering at 300 aeC after austenitising at 900 aeC for 100 min improved the mechanical properties of the investigated ductile iron with respect to as-cast condition. Increase of austempering time from 45 min to 180 min did not cause further improvement in hardness and strength, but increased the ductility and wear resistance, progressively. 391

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Section: Fig 4 Hardness and Tensile Test Results Of As-cast And Ausmentioning

confidence: 99%

Section: Wear Testsmentioning

confidence: 86%

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The effect of austempering time on mechanical properties of a ductile iron

Baydoğan

Çi̇menoǧlu

2001

Scand Jof Metallurgy

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“…A number of authors, including Schissler et al [5], Owhadi et al [6], Hayrynen et al [7,8], Myszka and Wieczorek [9,10] confirmed a beneficial influence of the strain-induced transition on the wear properties of ADIs.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Wear Properties of Fe-Based Alloys Designed for Mining Applications

Wieczorek¹,

Myszka²

2017

Archives of Metallurgy and Materials

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The purpose of this study was to determine experimentally the wear properties of 5 groups of iron-based alloys used in the mining and transport machines exposed to the action of a hard abrasive material. The groups of materials to be examined included austempered ductile irons (ADI), steels and cast steel designed for quenching and tempering and for surface hardening, hard-wearing hardened steels and structural steels. The wear tests were carried out on a disc-on-disc test rig. The test samples were examined under conditions of sliding mating, while the leading destructive process was microcutting of the surface with loose corundum grain. The loss of mass of the examined samples was measured as a parameter characterizing the wear. Base on it, other wear coefficients were determined, for example the volume loss, the intensity of wear and the wear rate. The volume loss values determined were presented as a function of the strength and the initial hardness. Based on the results obtained, it was found that the hardened steel and ADI had comparable wear properties, while the ADI surface was strengthened probably as a result of the transition of austenite into martensite and the impact of the deformation of the graphite contained in ADI on the abrasive wear of the surface.

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“…lent mechanical properties together with wear resistance and has been subjected to extensive research in recent years. [1][2][3][4][5][6] B. Heat Treatment Despite the similarity of austempering heat treatments between steel and cast iron, yet because of the difference This experiment adopted the two-step HLAT concept, [16,18] in microstructural constituents, the resulting phase for steel is as wear resistance (which is better for lower ausferrite) is termed "bainite" while that for iron is termed "ausferrite."…”

Section: Introductionmentioning

confidence: 99%

Influence of stepped austempering process on the fracture toughness of austempered ductile iron

Hsu

Chuang

2001

Metall Mater Trans A

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This research studied the effect of a two-step austempering process on the fracture toughness of ductile iron and compared it to that of the conventional upper-and lower-ausferrite austempered ductile irons (ADIs). The results showed that such a two-step austempering heat-treatment process yielded a fracture-toughness value equivalent to that of the upper-ausferrite ADI, while the hardness was maintained at the level of lower-ausferrite ADI. This provided a unique combination of high toughness with good hardness (strength) properties for the ADI with a two-step austempering. Optical microscopy, scanning electron microscopy (SEM), and X-ray diffraction analysis were performed to correlate the properties attained to the microstructural features.

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Wear behaviour of 1.5Mn austel11pered ductile iron

Cited by 4 publications

References 6 publications

The effect of austempering time on mechanical properties of a ductile iron

The effect of austempering time on mechanical properties of a ductile iron

Abrasive Wear Properties of Fe-Based Alloys Designed for Mining Applications

Influence of stepped austempering process on the fracture toughness of austempered ductile iron

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