Laser cladding of high-entropy alloy on H13 steel

Liu, Xiaotao; Lei, Wenbin; Li, Jie; Ma, Yu; Wang, Weiming; Zhang, Baohua; Liu, Changsheng; Chen, Jianzhong

doi:10.1007/s12598-014-0403-3

Cited by 34 publications

(11 citation statements)

References 15 publications

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“…The abrasion resistance at room temperature of (Al)CoCrCuFeNi clad increases with Al content due to an increase of the hardness [ 87 ]. The wear rate at 500 °C for the Al 2 CoCrCuFeNi clad is 30% that of the H13 tool steel substrate [ 94 ]. The relative wear resistance at room temperature of Al 2 CoCrCuFeNi(Ti) coatings is about 3 times higher than for the Q235 steel substrate and almost independent of the Ti content despite the transition from a single-phase fcc for Ti 0 to a single-phase bcc for Ti 2 [ 93 ].…”

Section: Microstructure and Mechanical Properties Of High-entropy Allmentioning

confidence: 99%

Additive manufacturing of metals: a brief review of the characteristic microstructures and properties of steels, Ti-6Al-4V and high-entropy alloys

Gorsse

Hutchinson

Gouné

et al. 2017

Science and Technology of Advanced Materials

735

330

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We present a brief review of the microstructures and mechanical properties of selected metallic alloys processed by additive manufacturing (AM). Three different alloys, covering a large range of technology readiness levels, are selected to illustrate particular microstructural features developed by AM and clarify the engineering paradigm relating process–microstructure–property. With Ti-6Al-4V the emphasis is placed on the formation of metallurgical defects and microstructures induced by AM and their role on mechanical properties. The effects of the large in-built dislocation density, surface roughness and build atmosphere on mechanical and damage properties are discussed using steels. The impact of rapid solidification inherent to AM on phase selection is highlighted for high-entropy alloys. Using property maps, published mechanical properties of additive manufactured alloys are graphically summarized and compared to conventionally processed counterparts.

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Section: Microstructure and Mechanical Properties Of High-entropy Allmentioning

confidence: 99%

Additive manufacturing of metals: a brief review of the characteristic microstructures and properties of steels, Ti-6Al-4V and high-entropy alloys

Gorsse

Hutchinson

Gouné

et al. 2017

Science and Technology of Advanced Materials

735

330

View full text Add to dashboard Cite

show abstract

“…It also may be related to its high diffusivity in the FCC matrix. Moreover, apparently out of Table 4, both Al and Ni have the same content at Cr-rich BCC due to the segregation attributed to the different mixed enthalpy between Al, Ni, and Cr [58]. The melting point of elements and mixing enthalpy are two main influencing factors affecting the alloying rates [57].…”

Section: Xrd Of the Powder And Sintered Heasmentioning

confidence: 98%

Effect of Copper Addition on the AlCoCrFeNi High Entropy Alloys Properties via the Electroless Plating and Powder Metallurgy Technique

et al. 2021

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To improve the AlCoCrFeNi high entropy alloys’ (HEAs’) toughness, it was coated with different amounts of Cu then fabricated by the powder metallurgy technique. Mechanical alloying of equiatomic AlCoCrFeNi HEAs for 25 h preceded the coating process. The established powder samples were sintered at different temperatures in a vacuum furnace. The HEAs samples sintered at 950˚C exhibit the highest relative density. The AlCoCrFeNi HEAs model sample was not successfully produced by the applied method due to the low melting point of aluminum. The Al element’s problem disappeared due to encapsulating it with a copper layer during the coating process. Because the atomic radius of the copper metal (0.1278 nm) is less than the atomic radius of the aluminum metal (0.1431 nm) and nearly equal to the rest of the other elements (Co, Cr, Fe, and Ni), the crystal size powder and fabricated samples decreased by increasing the content of the Cu wt%. On the other hand, the lattice strain increased. The microstructure revealed that the complete diffusion between the different elements to form high entropy alloy material was not achieved. A dramatic decrease in the produced samples’ hardness was observed where it decreased from 403 HV at 5 wt% Cu to 191 HV at 20 wt% Cu. On the contrary, the compressive strength increased from 400.034 MPa at 5 wt% Cu to 599.527 MPa at 15 wt% Cu with a 49.86% increment. This increment in the compressive strength may be due to precipitating the copper metal on the particles’ surface in the nano-size, reducing the dislocations’ motion, increasing the stiffness of produced materials. The formability and toughness of the fabricated materials improved by increasing the copper’s content. The thermal expansion has increased gradually by increasing the Cu wt%.

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“…The resulted composite has a surface area of 446.5 m 2 /g with very regular mesopores, a uniform pore size of 2.8 nm, a pore volume 0.32 cm 3 /g, and a high saturation magnetization of 25 emu/g. The synthesis of the porous magnetic silica-graphene oxide hybrid composite (Fe 3 O 4 @mSiO 2 /GO) was successfully carried out by Liu, et al (2014) [68] through the core-shell method to be applied as a p-nitrophenol adsorbent from an aqueous solution. The maximum adsorption capacity produced reached 1548.78 mg/g at a solution pH of 8 and a temperature of 25 • C.…”

Section: Adsorbentmentioning

confidence: 99%

Fabrication of Carbon and Related Materials/Metal Hybrids and Composites

2022

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Laser cladding of high-entropy alloy on H13 steel

Cited by 34 publications

References 15 publications

Additive manufacturing of metals: a brief review of the characteristic microstructures and properties of steels, Ti-6Al-4V and high-entropy alloys

Additive manufacturing of metals: a brief review of the characteristic microstructures and properties of steels, Ti-6Al-4V and high-entropy alloys

Effect of Copper Addition on the AlCoCrFeNi High Entropy Alloys Properties via the Electroless Plating and Powder Metallurgy Technique

Fabrication of Carbon and Related Materials/Metal Hybrids and Composites

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