Tribological behavior of shot peened/austempered AISI 5160 steel

Han, Xue; Zhang, Zhenpu; Hou, Jun Ming; Barber, Gary C.; Qiu, Feng

doi:10.1016/j.triboint.2020.106197

Cited by 56 publications

(26 citation statements)

References 27 publications

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“…The θ phases precipitated during aging treatment pin the dislocations under load and then improve the strength of the alloys, which is called Orowan strengthening. We used the modified Orowan equation to calculate the Orowan stress due to plate-like θ precipitate strengthening (∆σ θ ) according to the following modified Orowan equation [39,[46][47][48]:…”

Section: Discussionmentioning

confidence: 99%

Investigation of the Effect of Heat Treatment on the Microstructures and Mechanical Properties of Al-13Si-5Cu-2Ni Alloy

Wang

Miao

Kou

et al. 2021

Metals

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An experimental investigation was carried out to study the effects of solid solution treatment and aging treatment on the microstructures and mechanical properties of an Al-13Si-5Cu-2Ni alloy. The results show that the size of eutectic silicon decreased with solid solution treatment temperature increasing until 510 °C. Subsequently, the eutectic silicon size continued to increase as the temperature increased to 520 °C. Initially, the acicular eutectic silicon of the as-cast alloy was 10.1 μm in size. After the solid solution treatment at 510 °C, the eutectic silicon size was reduced to 6.5 μm. The θ′ phase is the main strengthening phase in the alloy, therefore, the effect of aging treatment on θ′ phases was explored. As the aging time increased, the diameter, length, and fraction volume of the θ′ phases were found to increase. The main reason for the improved performance of this alloy following heat treatment is the passivation spheroidization of the silicon phase and Orowan strengthening due to the θ′ phases. The optimal tensile strength of an Al-13Si-5Cu-2Ni alloy was obtained after solid solution treatment at 510 °C for 8 h followed by an aging treatment at 165 °C for 8 h. Therefore, this work has great significance for promoting the application of Al alloys at high temperatures.

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Section: Discussionmentioning

confidence: 99%

Investigation of the Effect of Heat Treatment on the Microstructures and Mechanical Properties of Al-13Si-5Cu-2Ni Alloy

Wang

Miao

Kou

et al. 2021

Metals

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“…Collisions of particles and hard surfaces can be advantageous since the shear strain introduced to the hard surface via the impacting particles typically induces the formation of hard structure phases at the surface of the base material (such as martensite for stainless steels as reported by Staman et al [27]), by the effect of which the surface hardness increases, and the surface hardening consequently reduces the tendency of the base material (i.e., rotors) to abrasion/wear, as claimed by Silva et al [28] and Han et al [29]. On the other hand, continuous high-speed shelling of the base material (rotors) with hard and/or sharp-edged particles inevitably leads to abrasion/wear in time.…”

Section: Introductionmentioning

confidence: 88%

Effect of Imposed Shear Strain on Steel Ring Surfaces during Milling in High-Speed Disintegrator

et al. 2020

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This contribution characterizes the performance of a DESI 11 high-speed disintegrator working on the principle of a pin mill with two opposite counter-rotating rotors. As the ground material, batches of Portland cement featuring 6–7 Mohs scale hardness and containing relatively hard and abrasive compounds with the specific surface areas ranging from 200 to 500 m2/kg, with the step of 50 m2/kg, were used. The character of the ground particles was assessed via scanning electron microscopy and measurement of the absolute/relative increase in their specific surface areas. Detailed characterization of the rotors was performed via recording the thermal imprints, evaluating their wear by 3D optical microscopy, and measuring rotor weight loss after the grinding of constant amounts of cement. The results showed that coarse particles are ground by impacting the front faces of the pins, while finer particles are primarily milled via mutual collisions. Therefore, the coarse particles cause higher abrasion and wear on the rotor pins; after the milling of 20 kg of the 200 m2/kg cement sample, the wear of the rotor reached up to 5% of its original mass and the pins were severely damaged.

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“…A few researchers have studied the effect of different microstructures on the tribological performance of medium carbon steel. Han et al [ 15 ] studied the effect of shot peening on the tribological performance of AISI5160 steel austempered under different conditions. The results showed that lower bainite results in higher wear resistance than upper bainite.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance of Medium Carbon Steel with Different Microstructures

et al. 2021

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In this research, the tribological properties of different microstructures of medium carbon steel produced by either an austempered process or quenched-tempered process are investigated. The as-received samples with annealed microstructure (spherodized) are austempered to obtain a bainite microstructure or quenched-tempered to obtain a tempered martensite microstructure. The tribological performance of these microstructures was studied using a ball-on-disk UMT3 tribometer. The results indicated that both bainite microstructures and tempered-martensite microstructures produced better wear resistance than pearlite microstructures. At the same hardness level, the austempered disk specimens have less cracking due to higher fracture toughness compared to quenched and tempered steel. For the disks, tempered martensite microstructures produced more plastic deformation compared with bainite microstructures. Mild abrasive wear was observed on the harder disks, however, smearing wear was observed on the softer disks. Adhered debris particles were observed on the balls.

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Tribological behavior of shot peened/austempered AISI 5160 steel

Cited by 56 publications

References 27 publications

Investigation of the Effect of Heat Treatment on the Microstructures and Mechanical Properties of Al-13Si-5Cu-2Ni Alloy

Investigation of the Effect of Heat Treatment on the Microstructures and Mechanical Properties of Al-13Si-5Cu-2Ni Alloy

Effect of Imposed Shear Strain on Steel Ring Surfaces during Milling in High-Speed Disintegrator

Wear Resistance of Medium Carbon Steel with Different Microstructures

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