Effects of carburization on expected fatigue life of alloys steel shafts

Loganathan, Tamil Moli; Purbolaksono, J.; Inayat-Hussain, Jawaid I.; Wahab, Norfishah Ab

doi:10.1016/j.matdes.2011.02.004

Cited by 20 publications

(6 citation statements)

References 12 publications

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“…The Vicker's microhardness of each as-received specimen was measured, according to the ASTM standard E92-82 [22,23], using an HVS-1000 Vicker's hardness instrument with a load of 1 kg and a dwell time of 8 s. Five tests were conducted and the mean value was given. The density of as-prepared specimens was determined by Archimedes' principle according to the ASTM Standard B962-08 [24,25].…”

Section: Vicker's Microhardness and Densitymentioning

confidence: 99%

Influence of Ti3SiC2 content on tribological properties of NiAl matrix self-lubricating composites

et al. 2013

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Section: Vicker's Microhardness and Densitymentioning

confidence: 99%

Influence of Ti3SiC2 content on tribological properties of NiAl matrix self-lubricating composites

et al. 2013

View full text Add to dashboard Cite

“…The Vicker's microhardness of each as-received specimen was measured, according to the ASTM standard E92-82 [22,23], using a HVS-1000 Vicker's hardness instrument with a load of 200 g and a dwell time of 8 s. Ten tests were conducted and the mean value was given. The density of as-prepared specimens was determined by Archimedes' principle according to the ASTM Standard B962-08 [24,25].…”

Section: Vicker's Microhardness and Densitymentioning

confidence: 99%

Tribological behavior of Ti3SiC2/(WC–10Co) composites prepared by spark plasma sintering

Shi

Wang

et al. 2013

Materials & Design

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“…Over the 150 • C-250 • C range generally used for low-temperature tempering, the migration of carbon atoms in the carburized layer over short distances results in a series of microstructural changes. The microstructural evolution that occurs during carburizing heat treatments ultimately determines the hardness and gradient distribution of the carburized layer, which directly affects the service performance under surface wear and fatigue [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Mechanism of the Microstructural Evolution of 18Cr2Ni4WA Steel during Vacuum Low-Pressure Carburizing Heat Treatment and Its Effect on Case Hardness

Wang

Liu

et al. 2020

Materials

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In this study, vacuum low-pressure carburizing heat treatments were carried out on 18Cr2Ni4WA case-carburized alloy steel. The evolution and phase transformation mechanism of the microstructure of the carburized layer during low-temperature tempering and its effect on the surface hardness were studied. The results showed that the carburized layer of the 18Cr2Ni4WA steel was composed of a large quantity of martensite and retained austenite. The type of martensite matrix changed from acicular martensite to lath martensite from the surface to the core. The hardness of the carburized layer gradually decreased as the carbon content decreased. A thermodynamic model was used to show that the low-carbon retained austenite was easier to transform into martensite at lower temperatures, since the high-carbon retained austenite was more thermally stable than the low-carbon retained austenite. The mechanical stability—not the thermal stability—of the retained austenite in the carburized layer dominated after carburizing and quenching, and cryogenic treatment had a limited effect on promoting the martensite formation. During low-temperature tempering, the solid-solution carbon content of the martensite decreased, the compressive stress on the retained austenite was reduced and the mechanical stability of the retained austenite decreased. Therefore, during cooling after low-temperature tempering, the low-carbon retained austenite transformed into martensite, whereas the high-carbon retained austenite still remained in the microstructure. The changes in the martensite matrix hardness had a far greater effect than the transformation of the retained austenite to martensite on the case hardness of the carburized layer.

show abstract

Effects of carburization on expected fatigue life of alloys steel shafts

Cited by 20 publications

References 12 publications

Influence of Ti3SiC2 content on tribological properties of NiAl matrix self-lubricating composites

Influence of Ti3SiC2 content on tribological properties of NiAl matrix self-lubricating composites

Tribological behavior of Ti3SiC2/(WC–10Co) composites prepared by spark plasma sintering

Mechanism of the Microstructural Evolution of 18Cr2Ni4WA Steel during Vacuum Low-Pressure Carburizing Heat Treatment and Its Effect on Case Hardness

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