Novel laser rapidly solidified medium-entropy high speed steel coatings with enhanced hot wear resistance

Tang, Hao; Zhang, Hui; Liang, Chunyong; Guo, Sheng

doi:10.1016/j.jallcom.2018.09.122

Cited by 27 publications

(13 citation statements)

References 22 publications

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“…High-speed steel PM S390 MC is manufactured from commercially available metal powders (Fe, V, Co, Cr, C, W,and Mo). The chemical composition of the alloy is given in Table (1) according to BÖH LER S390 MICROCLEAN alloy.…”

Section: Experimental Workmentioning

confidence: 99%

“…High-speed steel is one of the most important cutting tool materials that must continuously improve and develop to be with the industrial world progress. It belongs to the FeCX high alloy steel; X is the challenging carbide-forming element like chromium, tungsten, molybdenum, and vanadium [1]. Graphene is a cermaic material and considered the best choice as reinforcement to improve the mechanical properties of high-speed steel alloy [2].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the Effectuation of Graphene Nanosheets (GNS) Addition on the Mechanical Properties and Microstructure of S390 HSS Using Powder Metallurgy Method

Zidan

Hegazy

Abd-El-Wahed

et al. 2021

International Journal of Materials Technology and Innovation

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The effect of graphene-nanosheets (GNs) on the mechanical properties and microstructure of the S390 HSS alloy was investigated. The S390 HSS sample reinforced with 0.25, 0.5, and 0.75 wt.% GNS. Powder metallurgy technique was used to prepare all samples. The elemental powders of the alloy were milled in a planetary ball mill by 10:1 ball to powder ratio with speed 350 rpm for 48 hours, and the mixed powders were warm compacted by the uni-axial press at 550 ⁰ C under 500 MPa and then sintered in a vacuum furnace at 1370 • C for 1 hour. X-ray diffraction shows the formation of secondary carbide phases and martensite. The density result indicates the decreasing of density values by GNS additions. The mechanical properties show an increase in the hardness and wear resistance by increasing the graphene content. The specimens are metallographically examining using Scanning Electron Microscopy (SEM), and also the electron backscatter diffraction shows a good distribution of GNS in the HSS matrix.

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Section: Experimental Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of the Effectuation of Graphene Nanosheets (GNS) Addition on the Mechanical Properties and Microstructure of S390 HSS Using Powder Metallurgy Method

Zidan

Hegazy

Abd-El-Wahed

et al. 2021

International Journal of Materials Technology and Innovation

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“…In recent years, studies on surface modification through HEAs have gradually emerged because the high entropy alloy coatings can also exhibit excellent comprehensive properties. The methods of surface modification mainly include magnetron sputtering [21], laser cladding [22,23], thermal or cold spraying [24], spark plasma sintering [25], and so on. Among them, laser cladding has been intensively investigated and used owing to its unique features such as high heating speed, low dilution rate, small heat affected zone, fewer coating defects, and good metallurgical bonding between the cladding layer and substrate [26].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Wear Resistance of CoCrFeNi2V0.5Tix High-Entropy Alloy Coatings Prepared by Laser Cladding

Liang

Nie

et al. 2020

Crystals

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CoCrFeNi2V0.5Tix high entropy alloy coatings were synthesized by laser cladding on Ti-6Al-4V (annotated as TC4) substrate. The microstructures, hardness, and wear properties of the coatings were studied in detail. The results showed that these coatings were all composed of body-centered cubic (BCC) solid solution, (Co,Ni)Ti2 phase, and Ti-rich phase. With the increase of Ti content (x in the range of 0–1.0), the hardness of these coatings (about 960 HV) was basically unchanged and stabilized, whereas, when x was increased to 1.25, the correspondent hardness was decreased significantly to about 830 HV. Compared with original substrate, the wear resistance of high-entropy alloy (HEA) coatings was greatly improved. In particular, CoCrFeNi2V0.5Ti0.75 (donated as Ti0.75) exhibited the lowest wear rate, width, and depth of tracks of wear, indicating the best wear resistance. Moreover, the wear mechanisms of Ti0.75 coating were mainly adhesive wear and oxidative wear.

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“…In our previous work, a medium-entropy (ME) highspeed steel (HSS) coating with Fe content of 68 at.% by laser cladding was synthesized [11]. The coating possessed excellent oxidative hot wear resistance than the M2-HSS (W 6 Mo 5 Cr 4 V 2 ) coating, because the former contains a high content of anti-oxidation elements, such as Cr, Co and Al, and hence leads to a more continuous and compact oxidation film on the worn surface after hot wear tests at 500 °C.…”

Section: Introductionmentioning

confidence: 99%

Uniformly Dispersed Carbide Reinforcements in the Medium-Entropy High-Speed Steel Coatings by Wide-Band Laser Cladding

Dou

Zhang

Zhu

et al. 2020

Acta Metall. Sin. (Engl. Lett.)

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A medium-entropy high-speed steel (ME-HSS) coating with the 76 at.% of Fe and multiple alloying elements was prepared by the wide-band laser cladding. Compared with the commercial W 6 Mo 5 Cr 4 V 2 (M2) HSS coating which contains a large number of network lamellar M 2 C-type carbides along the grain boundaries, the presented ME-HSS coating has a high quantity of finer and more uniformly dispersed MC-type carbides; on the other hand, the coating has less retained austenite and much lower brittleness as well as similar secondary hardening effect and tempering hardness.

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Novel laser rapidly solidified medium-entropy high speed steel coatings with enhanced hot wear resistance

Cited by 27 publications

References 22 publications

Investigation of the Effectuation of Graphene Nanosheets (GNS) Addition on the Mechanical Properties and Microstructure of S390 HSS Using Powder Metallurgy Method

Investigation of the Effectuation of Graphene Nanosheets (GNS) Addition on the Mechanical Properties and Microstructure of S390 HSS Using Powder Metallurgy Method

Microstructures and Wear Resistance of CoCrFeNi2V0.5Tix High-Entropy Alloy Coatings Prepared by Laser Cladding

Uniformly Dispersed Carbide Reinforcements in the Medium-Entropy High-Speed Steel Coatings by Wide-Band Laser Cladding

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