Tribological behaviour of shot peened Cu–Ni austempered ductile iron

Zammit, Ann; Abela, Stephen; Wagner, Lothar; Mhaede, Mansour; Grech, M.

doi:10.1016/j.wear.2012.12.027

Cited by 56 publications

(27 citation statements)

References 22 publications

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“…This type of surface modification done by shot peening may result in two conflicting effects associated with tribological behavior. Increase in surface roughness may have adverse effect since it will increase coefficient of friction and intern increase wear rate [11]. Whereas, dimples formed on the surface due to shot peening reduce area of contact and acts as lubricating pockets which may be beneficial for tribological performance of surfaces in contact [12].…”

Section: Characterizationmentioning

confidence: 99%

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Bhavar¹,

Patil²,

Kattire³

et al. 2017

MSCE

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Shot peening is one of the most popular surface enhancement technique used to improve fatigue performance of different materials. This paper focuses on to study the effect of different shot peening parameters on micro-structural and mechanical properties of DIN 1.2714 tool steel specimens. Shot peening treatments were carried out by varying shot size and peening intensity. X-ray stress analysis, micro-hardness testing and micro-structural analysis were performed to characterize these specimens. In addition, pin on disk wear testing was executed to recognize wear behavior of this shot peened tool steels. It was observed that along with compressive residual stress generation, shot peening also induces work hardening effect and modifies surface structure which are responsible for significant improvement in this tool steel.

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Section: Characterizationmentioning

confidence: 99%

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Bhavar¹,

Patil²,

Kattire³

et al. 2017

MSCE

View full text Add to dashboard Cite

show abstract

“…Boron addition leads to a decrease in wear resistance, as it results in a reduction of retained austenite available for martensitic formation [28]. Shot peening shows no significant variation [29]. Eight hundred and fifty grade ADI showed a lower resistance, as compared to 1050 grade ADI [30].…”

Section: Introductionmentioning

confidence: 99%

Austempered Ductile Iron (ADI): Influence of Austempering Temperature on Microstructure, Mechanical and Wear Properties and Energy Consumption

Sellamuthu

Samuel

Dinakaran

et al. 2018

Metals

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Alloyed Ductile iron, austenitized at 840 • C for 30 min in a special sealed austempering furnace, was austempered for 30 min in molten salt mixture at 4 trial temperatures of 300 • C, 320 • C, 340 • C and 360 • C. Tensile strength, yield strength, percentage elongation and impact energy were evaluated for the as-cast and austempered samples. Microstructures were investigated using microscopy, coupled with analyzing software and a scanning electron microscopy. The specific wear of samples was tested using pin-on-disc wear testing machine. X-ray diffraction was performed to calculate the amount of retained austenite present in the ausferrite matrix. As-cast microstructure consists of ferrite and pearlite, whereas austempered ductile iron (ADI) contains a mixture of acicular ferrite and carbon enriched austenite, called "ausferrite". Hardness and strength decreased, whereas ductility and impact strength improved with an increase in the austempering temperature. XRD analysis revealed that the increase in austempering temperature increased the retained austenite content. A decrease in wear resistance with austempering temperature was observed. Modified Quality Index (MQI) values were envisaged, incorporating tensile strength, elongation and wear resistance. MQI for samples austempered at 340 • C and 360 • C showed a better combination of properties. About an 8% reduction in energy consumption was gained when the heat treatment parameters were optimized.

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“…Advantages Drawbacks Roller burnishing [2] cheap tool only cylindrical workpiece Ball burnishing [3] cylindrical and flat workpiece expensive tool Diamond burnishing [4] hard workpiece rigid tool Shot peening [5] 3D contoured surfaces required special equipment Considering drawbacks of expensive and complicated construction, the authors designed a novel Magnetic Assisted Ball Burnishing (MABB) tool. During the design process, the Magnetism Aided Machining or Magnetic Assisted Machining (MAM) technologies were investigated [14,15,16,17,18], which are relatively novel industrial machining processes.…”

Section: Technologymentioning

confidence: 99%

“…There are several type of burnishing, like roller burnishing [2], ball burnishing [2] or diamond burnishing [3]. There are also some technologies which are similar to them, for example shot peening [4] and not to mention the special processes like laser-assisted burnishing which is able to burnish high hardness (45-60 HRC) metals [5].…”

Section: Introductionmentioning

confidence: 99%

Determination of the working gap and optimal machining parameters for magnetic assisted ball burnishing

2018

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A B S T R A C T This paper presents the results of various experimental analysis regarding a permanent Magnetic AssistedBall Burnishing (MABB) tool. This type is a special tool using the magnetic field to produce the necessary force for burnishing, it is applicable especially to rolling flat and 3D harmonic surfaces. For the correct operation of this special kind of tool, the set up for optimal distance between the tool and workpiece was introduced also taking into the account the measured rolling force (Fz), which occurs between the tool and workpiece because the magnetic force pulls the rolling balls on a cone which is located at the end of the tool. In this paper the optimisation of the process parameters for burnishing of C45 normalized premachined steel is also presented. To determine the dominant machining parameters the resulted surface roughness and the tribological parameters were also anaysed. The evaluation was completed by advanced measuring and IT equipment.

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Tribological behaviour of shot peened Cu–Ni austempered ductile iron

Cited by 56 publications

References 22 publications

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Austempered Ductile Iron (ADI): Influence of Austempering Temperature on Microstructure, Mechanical and Wear Properties and Energy Consumption

Determination of the working gap and optimal machining parameters for magnetic assisted ball burnishing

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