Comparing the abrasion performance of NiHard-4 and high-Cr-Mo white cast irons: The effects of chemical composition and microstructure

Jokari-Sheshdeh, Maziar; Ali, Yahia; Gallo, Santiago Corujeira; Lin, Weikang; Gates, J.D.

doi:10.1016/j.wear.2021.204208

Cited by 10 publications

(7 citation statements)

References 38 publications

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“…Thus, the material with better wear resistance behavior is 2C-5Nb (wear rate: approximately 2.48 × 10 −4 g/m) and the worst is the 1C-5Nb alloy (wear rate: approximately 5.73 × 10 −4 g/m). This result is in agreement with several previous studies that determined that the greater the CVF and strength of the material, the better the wear resistance [7,27,29,35].…”

Section: Three-body Abrasive Wear Characteristics Of the Alloyssupporting

confidence: 93%

“…with several previous studies that determined that the greater the CVF and strength of the material, the better the wear resistance [7,27,29,35].…”

Section: Three-body Abrasive Wear Characteristics Of the Alloyssupporting

confidence: 68%

“…Traditional high-chromium white cast iron (HCCI) consists of 12-30 wt.% Cr and 2.0-4.3 wt.% C, and it has been utilized under severe wear conditions since the early 1980s [5][6][7]. Zum-Gahr et al [8] stated that the outstanding wear resistance of HCCI occurs due to the crystallization of the hard phase (M 7 C 3 ) in the microstructure.…”

Section: Introductionmentioning

confidence: 99%

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A Study of the Three-Body Abrasive Wear Resistance of 5V/5Nb-5Cr-5Mo-5W-5Co-Fe Multicomponent Cast Alloys with Different Carbon Percentages

et al. 2023

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Since it is well known in the literature that transition metals can form extremely hard carbides and effectively strengthen a material’s matrix, recently, some of them, such as V, Nb, Cr, Mo, and W, have been simultaneously added to cast iron. In addition, it is common to add Co to cast iron to strengthen the material’s matrix. However, the wear resistance of cast iron can also be considerably affected by the addition of C, which is rarely discussed in the literature by the experts. Therefore, the effect of C content (1.0; 1.5; 2.0 wt.%) on the abrasive wear behavior of 5 wt.% V/Nb, Cr, Mo, W, and Co alloys was investigated in this study. An evaluation was conducted using a rubber wheel abrasion testing machine in accordance with ASTM G65 with silica sand (1100 HV; 300 μm) as abrasive particles. The results show that plural carbides (MC, M2C, and M7C3) precipitated on the microstructure of the material, which is not unlike the behavior of other types of carbides as the quantity of C increases. The hardness and wear resistance properties of 5V-5Cr-5Mo-5W-5Co-Fe and 5Nb-5Cr-5Mo-5W-5Co-Fe multicomponent cast alloys increased as the quantity of C increased. However, we observed no significant difference in the hardness between the two materials with the same C additions, while 5Nb presented better wear resistance properties compared to the 5V sample due to the larger size of NbC compared to VC. Therefore, it can be determined that, in this study, the size of the carbide plays a more important role than its volume fraction and hardness.

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Section: Three-body Abrasive Wear Characteristics Of the Alloyssupporting

confidence: 93%

“…with several previous studies that determined that the greater the CVF and strength of the material, the better the wear resistance [7,27,29,35].…”

Section: Three-body Abrasive Wear Characteristics Of the Alloyssupporting

confidence: 68%

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A Study of the Three-Body Abrasive Wear Resistance of 5V/5Nb-5Cr-5Mo-5W-5Co-Fe Multicomponent Cast Alloys with Different Carbon Percentages

et al. 2023

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“…Although it was hypothesized in our previous work during the examination of the wear surface, investigating the sub-surface shed further light on this matter. In the destabilized samples, the presence of a predominately martensitic matrix and the dispersion of SC improves the load-bearing capacity in distributing the load so that the EC alone do not have to bear the brunt [22,46,47]. In the AC sample, only a small fraction of the microstructure is martensitic, which are primarily located at the interface between the EC and the austenite.…”

Section: Nanoindentation Measurements Of the Sub-surfacementioning

confidence: 99%

Wear Induced Sub-surface Deformation Characteristics of a 26 Wt% Cr White Cast Iron Subjected to a Destabilization Heat Treatment

et al. 2022

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In the present work, the sub-surface microstructure of a heat treated and worn 26 wt% Cr white cast iron was investigated to gain better insight into the tribological behaviour of the material. The samples were destabilized at 980 °C for 0 (Q_0), 30 (Q_30) and 90 (Q_90) minutes followed by air cooling, and later subjected to dry-sliding linear reciprocating wear tests. The microstructural characterization of the area under the wear track was carried out using a combination of SEM, EDS and EBSD. Additionally, nanoindentation (NI) measurements were used to corroborate the mechanical behaviour with the microstructural observations. EBSD and NI measurements indicated that the matrix area underneath the wear track in Q_0 had undergone significant plastic deformation resulting in a drastic increase in hardness, whereas no such phenomena was observed in the Q_90. This was attributable to the relatively high amount of retained austenite in the former and a predominately martensitic matrix in the latter. Moreover, the large M7C3 eutectic carbides were less cracked in the destabilized samples compared to the as-cast sample owing to the presence of martensite and dispersed secondary carbides, leading to an increased matrix load-bearing capacity. These factors led to the destabilized samples showing a lower wear rate compared to the as-cast sample, and the Q_0 showing the best wear resistance amongst all the samples.

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“…White cast irons (WCIs) have been extensively utilized in many industries requiring wear resistance [1][2][3] . WCIs for wear resistance proposes are typically classified into four groups: pearlitic, Ni-Hard (with M 3 C eutectic carbides or M 7 C 3 eutectic carbides), High-Chromium Cast Iron (HCCI), and Multi-Component Cast Iron (MCCI) [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Improving the Wear Resistance of High Chromium Cast Iron through High Entropy Alloys Concepts and Microstructure Refinement

Pasini,

Pereira,

Bitka

et al. 2023

Mat. Res.

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High Chromium Cast Iron (HCCI) has demonstrated its effectiveness as a potential material for applications in severe environments due to its remarkable wear resistance attributed to the volumetric fraction of carbides in the microstructure. This study investigates a novel high-alloyed composition of white cast iron named High Entropy White Cast Iron (HEWCI), which merges the concepts of HCCI and high entropy alloys. Specifically designed chemical compositions incorporating Vanadium (V), Molybdenum (Mo), and Nickel (Ni) were employed to enhance its wear resistance properties. The solidification path, microstructural characterization, and wear responses of HEWCI were evaluated. XRD and SEM techniques were carried out for characterization purposes. Linearly reciprocating ball-on-flat sliding wear tests were conducted using a high-frequency reciprocation rig (HFRR) tribometer, assessing wear volume, linear wear rate, specific wear rate (κ), and coefficient of friction (COF). The results revealed microstructural refinement and precipitation of new carbides through V, Ni, and Mo additions. This approach demonstrates that adding carbide-forming elements and refining the microstructure are promising strategies for enhancing wear performance in HEWCI alloys.

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Comparing the abrasion performance of NiHard-4 and high-Cr-Mo white cast irons: The effects of chemical composition and microstructure

Cited by 10 publications

References 38 publications

A Study of the Three-Body Abrasive Wear Resistance of 5V/5Nb-5Cr-5Mo-5W-5Co-Fe Multicomponent Cast Alloys with Different Carbon Percentages

A Study of the Three-Body Abrasive Wear Resistance of 5V/5Nb-5Cr-5Mo-5W-5Co-Fe Multicomponent Cast Alloys with Different Carbon Percentages

Wear Induced Sub-surface Deformation Characteristics of a 26 Wt% Cr White Cast Iron Subjected to a Destabilization Heat Treatment

Improving the Wear Resistance of High Chromium Cast Iron through High Entropy Alloys Concepts and Microstructure Refinement

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