Wear resistance of ductile irons

Lerner, Yury S.

doi:10.1007/bf02645338

Cited by 10 publications

(5 citation statements)

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“…The results of our study have showed that ductile iron is still better choice for friction than cast iron. A study comprising several wear test methods has been carried out to evaluate the wear resistance of ductile iron as alternative to gray cast iron, it has been reached that the wear resistance of ductile iron is significantly higher than grey iron [21]. Cast iron had the highest friction and that is because cast iron is more fragile and has less tensile strength in comparison to steel and ductile iron but economically, cast iron is the lowest expensive.…”

Section: Discussionmentioning

confidence: 99%

An investigation on the friction losses between cylinder liner and piston rings

Abouchi

Baştürk

2022

Sustainable Engineering and Innovation

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Historically, the engine crankcase has been made of gray cast iron due to that material's' high machinability, damping ability, thermal conductivity, and sensible cost. Despite these advantages and the long-term use of gray cast iron, the vehicle manufacturers predominately use cast aluminum as material of choice for the engine block due to aluminum’s density being almost a third of that of gray cast iron, and the aluminum engines have the same durability as gray cast iron while weighing considerably less. However, due to the low wear resistance of aluminum, efforts are needed to improve internal working surfaces such as the use of cast iron cylinder liners or the application of a protective coat is applied to the aluminum surface to increase its resistance. The purpose of this study is to examine which ring materials have the lowest friction with the Twin Wire Arc (TWA) aluminum cylinder liner. An Ansys simulation model accomplishes the experimental work. The steel ring material obviously had the lowest friction with twin wire arc spray aluminum cylinder liner as opposite to the cast iron material which was the worst.

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Section: Discussionmentioning

confidence: 99%

An investigation on the friction losses between cylinder liner and piston rings

Abouchi

Baştürk

2022

Sustainable Engineering and Innovation

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“…Sliding wear behavior of cast iron has been studied over the past investigating the effects of material microstructure, applied load/pressure, sliding speed, and test environment on the wear response ( Ref 9,10,12,[23][24][25][26][27][28][46][47][48][49][50][51][52][53][54]. Some of them also refer to the effect of adding solid lubricant particles in oil on the wear behavior of cast iron ( Ref 9,11,12,[23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Sliding Wear Behavior of Cast Iron: Influence of MoS2 and Graphite Addition to the Oil Lubricant

Prasad

Rathod

Yadav

et al. 2010

J. of Materi Eng and Perform

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The present study discusses sliding wear characteristics of a gray cast iron over a range of applied loads in oil lubricated condition. Effects of MoS 2 and graphite addition to the oil lubricant in governing the wear behavior have also been studied. The wear rate increased with load in general with a few exceptions in the case of oil plus 5% MoS 2 wherein it had a tendency to show a reverse trend in the intermediate load range. Addition of 5% graphite to the oil brought about a decrease in the wear rate without affecting seizure resistance. Increasing quantity of graphite in the oil from 5 to 10% practically did not affect the wear rate at lower loads. However, it led to significantly lower wear rates at higher loads and also offered higher seizure resistance. In the case of oil plus 5% MoS 2 lubricant mixture, the wear rate of the samples was higher than that of the lubricant with 5% graphite when tests were conducted at lower loads while identical response was observed at higher loads in both cases. Seizure resistance of the samples was not affected by the addition of 5% graphite and MoS 2 to the oil. The frictional heating also increased with load in general, except in the case of oil containing 5% MoS 2 and 10% graphite wherein it remained practically unaffected in the intermediate load range. The presence of 5% graphite and MoS 2 in the oil lubricant brought about reduced frictional heating, except in the case of oil plus 5% graphite mixture wherein the trend reversed, and oil plus 5% MoS 2 leading to comparable frictional heating during specimen seizure. Increasing test duration caused higher frictional heating. Adhesion was observed to be the principal wear mechanism while microcracking assisted delamination and abrasion also contributed to material loss.

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“…One of the popular materials used in many different applications in machinery is ductile cast iron because of its high mechanical strength and high plastic properties, low tendency to concentrate stress, very good casting properties, and machinability. However the wear resistance of this material is low, so for some applications were erosion, abrasion or other wear is occurring, ductile cast iron does not meet the requirements [5][6][7][8][9]. The way of protection against wear is the use of surface engineering technology at the production stage to increase surface hardness and, at the same time, wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Kotarska

Janicki

Górka

et al. 2020

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The article presents research on solid particle erosive wear resistance of ductile cast iron after laser surface melting. This surface treatment technology enables improvement of wear resistance of ductile cast iron surface. For the test ductile cast iron EN GJS-350-22 surface was processed by high power diode laser HPDL Rofin Sinar DL020. For the research single pass and multi pass laser melted surface layers were made. The macrostructure and microstructure of multi pass surface layers were analysed. The Vickers microhardness tests were proceeded for single pass and multi pass surface layers. The solid particle erosive test according to standard ASTM G76 -04 with 30°, 60° and 90° impact angle was made for each multi pass surface layer. As a reference material in erosive test, base material EN GJS-350-22 was used. After the erosive test, worn surfaces observations were carried out on the Scanning Electron Microscope. Laser surface melting process of tested ductile cast iron resulted in maximum 3.7 times hardness increase caused by microstructure change. This caused the increase of erosive resistance in comparison to the base material.

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Wear resistance of ductile irons

Cited by 10 publications

References 0 publications

An investigation on the friction losses between cylinder liner and piston rings

An investigation on the friction losses between cylinder liner and piston rings

Sliding Wear Behavior of Cast Iron: Influence of MoS2 and Graphite Addition to the Oil Lubricant

Archives of Foundry Engineering

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