Investigation of tribological properties of brake shoe materials — phosphorous cast irons with different graphite morphologies

Zhang, Y.; Chen, Y.; He, Ren; Shen, Bin

doi:10.1016/0043-1648(93)90260-s

Cited by 66 publications

(36 citation statements)

References 1 publication

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“…This is due to an excellent combination between high mechanical resistance and good heat-transfer capacity, which gives the material good thermal fatigue peeling resistance [8].…”

Section: Introductionmentioning

confidence: 99%

“…According to Zhang et al [8], the wear resistance of compact graphite irons is greater than the wear resistance of gray and ductile irons, independent of contact pressure or sliding speed. This is due to an excellent combination between high mechanical resistance and good heat-transfer capacity, which gives the material good thermal fatigue peeling resistance [8].…”

Section: Introductionmentioning

confidence: 99%

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Wear resistance of cast irons used in brake disc rotors

Cueva¹,

Sinatora

Guesser

et al. 2003

Wear

184

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The wear resistance of three different types of gray cast iron (gray iron grade 250, high-carbon gray iron and titanium alloyed gray iron), used in brake disc rotors, was studied and compared with the results obtained with a compact graphite iron (CGI). The wear tests were carried out in a pin-on-disc wear-testing machine, the pin being manufactured from friction material usually used in light truck brake pads. The rotating discs (500 rpm) were subjected to cyclical pressures of 0.7, 2 and 4 MPa and forced cooled.The wear was measured by weighing discs and pads before and after the test. The operating temperatures and friction forces were also monitored during each test.The results showed that compact graphite iron reached higher maximum temperatures and friction forces as well as greater mass losses than the three gray irons at any pressure applied. However, when compact graphite iron was tested with lower applied pressures and same friction forces sustained by the gray iron rotors, CGI presented the same performance, as did the gray cast iron.

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“…This is due to an excellent combination between high mechanical resistance and good heat-transfer capacity, which gives the material good thermal fatigue peeling resistance [8].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wear resistance of cast irons used in brake disc rotors

Cueva¹,

Sinatora

Guesser

et al. 2003

Wear

184

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show abstract

“…It is important and urgent to improve and to enhance the frictional wear properties and thermal fatigue resistance of brake drum materials. Improving the mechanical properties of brake materials is mainly done by adding alloy elements [1,11,12]. Mitsubishi Motors has used gray cast iron with 1.2% of nickel, plus chromium and molybdenum added in trucks as the material for brake drums [1]; Cheng et al [13] found that the microstructure and mechanical properties of cast iron were improved by means of micro-alloying with 0.51% Cu and 0.32% Cr (in wt.%) and reported its improvement for the service life of brake drums.…”

Section: Introductionmentioning

confidence: 99%

The thermal fatigue resistance of vermicular cast iron coupling with H13 steel units by cast-in process

et al. 2010

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a b s t r a c tThis paper focuses on improving the thermal fatigue resistance on the surface of vermicular cast iron coupling with inserted H13 steel blocks that had different cross sections, by cast-in processing. The microstructure of bionic units was examined by scanning electron microscope. Micro-hardness and thermal fatigue resistance of bionic samples with varied cross sections and spacings were investigated, respectively. Results show that a marked metallurgical bonding zone was produced at interface between the inserted H13 steel block and the parent material -a unique feature of the bionic structure in the vermicular cast iron samples. The micro-hardness of the bionic samples has been significantly improved. Thermal resistance of the samples with the circular cross section was the highest and the bionics sample with spacing of 2 mm spacing had a much longer thermal fatigue life, thus resulting in the improvement for the thermal fatigue life of the bionic samples, due to the efficient preclusion for the generation and propagation of crack at the interface of H13 block and the matrix.Crown

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“…[1][2][3][4][5][6] The copper and iron-based friction materials are most often fabricated using powder metallurgy (PM) technique due to its many advantages such as the elimination of solidification-induced chemical segregation and structural defects often accompanied with melting-solidification processes. The ease in mixing of different powders leads to the possibility for developing new composite materials with specially physical and mechanical properties that are otherwise difficult to manufacture.…”

Section: Introductionmentioning

confidence: 99%

Effect of Aluminum Content on Tribological Behavior of a Cu-Fe-C Based Friction Material Sliding against FC30 Cast Iron

Chen

Lin

2003

Mater. Trans.

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An experimental study was made on the effect of aluminum content on the tribological behavior of a Cu-Fe-C based friction material sliding against FC30 cast iron. As a result, the densities of all Cu-Fe-C materials decreased after sintering. In general, when Al content increased, the density decreased. Sintered 65.5mass%Cu-11.4mass%Fe-6.6mass%C based friction material (A0) had much lower hardness than 57.7mass%Cu-12.6mass%Fe-7.3mass%C and 48.1mass%Cu-14.0mass%Fe-8.0mass%C based friction materials (A10 and A20). During sintering in air, large amounts of oxides formed. The presence of Al caused Cu-Sn to decompose, Al-Cu and Fe-Sn phases to form, Cu to be oxidized, and Fe 2 O 3 to be reduced. A10 demonstrated the highest and most stable friction coefficient, as well as the smallest weight loss among three materials. Both film type and particulate type debris morphologies were observed on worn surfaces of Cu-Fe-C specimens. Local delamination of debris film was frequently observed on A0 and A20 surfaces, but seldom observed on A10 surface. Significant amounts of iron transfers from FC30 to A10 and A20 during sliding, but less such transfer occurred in A0.

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Investigation of tribological properties of brake shoe materials — phosphorous cast irons with different graphite morphologies

Cited by 66 publications

References 1 publication

Wear resistance of cast irons used in brake disc rotors

Wear resistance of cast irons used in brake disc rotors

The thermal fatigue resistance of vermicular cast iron coupling with H13 steel units by cast-in process

Effect of Aluminum Content on Tribological Behavior of a Cu-Fe-C Based Friction Material Sliding against FC30 Cast Iron

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