On the comparison of the abrasive wear behavior of aluminum alloyed and standard Hadfield steels

Abbasi, Majid; Kheirandish, Shahram; Kharrazi, Y. H. K.; Hejazi, Jalal

doi:10.1016/j.wear.2009.07.010

Cited by 71 publications

(25 citation statements)

References 13 publications

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“…This means the presence of boron has minimum 2 effects: the first is improvement of dissolution of manganese carbides in microstructure and the second consist of modification of remaining carbide morphologies. The higher amounts of 0.007% boron content can create boron carbides which have opposite effect on toughness and impact resistance (Abbasi et al, 2010;Kuyucak and Zavadil, 2000). Figure 3 shows the Scanning Electron Microscopy images of samples with 0.0 to 0.007% Boron content after the heat treatment.…”

Section: Resultsmentioning

confidence: 99%

Effect of boron alloying element and annealing solution heat treatment on microstructure and mechanical properties of manganese steels

Arab¹

2018

Afr J Eng Res

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In this paper, the effect of boron content in chemical composition of steel on improvement of microstructure and mechanical properties of manganese steels was investigated. The microstructure, by optical, SEM and FESEM microscopy, was investigated. In addition, mechanical tests such as tensile test, hardness and impact tests were performed on the samples. Microscopic test results show that the presence of 0.007% of boron consistently prevents formation of carbides in grain boundaries and also reduces the carbide sizes and improve uniform distribution. In presence of boron, annealing solution heat treatment, improve the morphology of carbides and modified it to spherical shape. The manganese steels by addition of boron alloy element and solution heat treatment, have higher hardness, impact energy and tensile strength.

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Section: Resultsmentioning

confidence: 99%

Effect of boron alloying element and annealing solution heat treatment on microstructure and mechanical properties of manganese steels

Arab¹

2018

Afr J Eng Res

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“…9b) suggest that the plate-like cementite and cellular ledeburite reinforced hard layer is brittle and more susceptible to spalling and cracking. As for the Mn13 steel sample comprised of single austenite, although having excellent toughness, the lack of hard reinforcement and the insufficiently high sliding pressure to trigger work-hardening make it powerless to resist the shear forces from the counterpart [20]. This explains why some micro-cutting and severe adhesive wear characteristics are observed in Fig.…”

Section: Phase Structurementioning

confidence: 99%

Hard-yet-tough high-vanadium high-speed steel composite coating in-situ alloyed on ductile iron by atmospheric plasma arc

2017

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Hard-yet-tough high-vanadium high-speed steel composite coating in-situ alloyed on ductile iron by atmospheric plasma arc Cao, Huatang; Dong, Xuanpu; Pei, Yutao T. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. H. Cao, et al., Int. J. Comp. Meth. and Exp. Meas., Vol. 6, No. 3 (2018) ABSTRACT A graded high-vanadium alloy composite coating was synthesized from premixed powders (V, Cr, Ti, Mo, Nb) on ductile iron (DI) substrate via atmospheric plasma arc surface alloying process. The resulted cross-section microstructure is divided into three distinct zones: upper alloyed zone (AZ) rich with spherical primary carbides, middle melted zone (MZ) with fine white iron structure and lower heat affected zone (HAZ). Spherical or bulk-like primary carbides with diameter < 1 μm in the AZ are formed via in-situ reactions between alloy powders and graphite in DI. Microstructural characterizations indicate that the carbides are primarily MC-type (M=V, Ti, Nb) carbides combined with mixed hardphases such as M 2 C, M 7 C 3 , M 23 C 6 , and martensite. Disperse distribution of spherical, submicron-sized metal carbides in an austenite/ledeburite matrix render the graded coating hard-yet-tough. The maximum microhardness of the upper alloyed zone is 950 HV 0.2 , which is five times that of the substrate. Significant plastic deformation with no cracking in the micro-indentations points to a high toughness. The graded high-vanadium alloy composite coating exhibits superior tribological performance in comparison to Mn13 steel and plasma transferred arc remelted DI.

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“…Work hardening mechanisms, impact wear, abrasive wear and the alloying of austenitic manganese steel have been investigated by several researchers and results have shown that under repeated impact and abrasive wear it work hardens rapidly and displays remarkable toughness [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] . Several other works on its surface treatment have also proved that surface treatment increases its surface hardness and wear resistance [22][23][24][25] . However, the rate of work hardening depends primarily on the amount of carbon in solution in the austenite matrix and the presence of a fine dispersion of carbides.…”

Section: Introductionmentioning

confidence: 96%

Workhardening behaviour and microstructural analysis of failed austenitic manganese steel crusher jaws

2013

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This study focussed on the work hardening behaviour and microstructure of austenitic manganese steel relative to premature failure of crusher jaws. Samples of sound and failed crusher jaws were taken, the change with depth from the working surface to the sample core was measured and their microstructures observed. The study revealed a sharp hardness gradient in the failed crusher jaws, and presence of large carbides at both the austenite grain boundaries and in the austenite matrix. The failure of crusher jaws was attributed to brittle fracture as a result of precipitates of carbides from the inability of precipitated carbides to absorb shock during impact working. Finally, we conclude that the failure occurred as a result of inadequate quenching operations during the manufacturing process that resulted in the formation of carbide precipitates which embrittle the austenitic manganese steel, reduce its ability to withstand shock and create a non uniform plastic flow as it is work hardening.

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On the comparison of the abrasive wear behavior of aluminum alloyed and standard Hadfield steels

Cited by 71 publications

References 13 publications

Effect of boron alloying element and annealing solution heat treatment on microstructure and mechanical properties of manganese steels

Effect of boron alloying element and annealing solution heat treatment on microstructure and mechanical properties of manganese steels

Hard-yet-tough high-vanadium high-speed steel composite coating in-situ alloyed on ductile iron by atmospheric plasma arc

Workhardening behaviour and microstructural analysis of failed austenitic manganese steel crusher jaws

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