Cobalt-based alloy surfacing process optimization and surfacing material performance analysis

Xue, Haitao; Zhou, Duo; Guo, Weibing; Luan, Xiaoping; Li, Tao; Zhao, Jianglong

doi:10.1088/2053-1591/abdf1b

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…in order to save cost and improve efficiency, it is generally necessary to repair the outer end face of the failed burner and put it into use again. Xue et al [11] reported that t800 cobalt-based alloy powder is surfacing on the uMCo50 substrate. it is found that there are more Laves phases in the surfacing layer, which is beneficial to improve the hardness and wear resistance of the surfacing layer.…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Xue

Luan

Guo

et al. 2021

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Microstructure and ProPerties of tiG surfacinG co-Based alloy on uMco50 Process Burner the surfacing layer of cobalt-based alloy is prepared using the tungsten inert gas welding (tig) process and employing the uMCo50, St1 and St6 filler materials. the metallographic testing, hardness, wear and corrosion testing of different surfacing layers have been carried out. each area of the surfacing layer is characterized using the optical and scanning electron microscope (SeM). Cellular and a few columnar dendrites have been observed near the fusion line of the uMCo50 surfacing layer, and cellular structure is observed in the central region. Dendrites and cellular crystals have been observed in the St1 and St6 surfacing layers. the average hardness of uMCo50, St1 and St6 surfacing layers are 320 HV, 672.3 HV and 497.5 HV, respectively. the wear loss of the St1, St6 and uMCo50 surfacing layer is 2.71 mg, 4.35 mg, and 14.57 mg, respectively. the corrosion weight loss of the St1, St6 and uMCo50 surfacing layers are 0.0388 g, 0.0477 g and 0.0833 g, respectively.

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Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Xue

Luan

Guo

et al. 2021

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Machinability of UMCo50 Cobalt Superalloy

Zemčík,

Kouřil,

Slaný

et al. 2023

Manufacturing Technology

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Testing of machinability of the UMCo50 superalloy was carried out within the project following the actual production of the semi-finished product by casting. Turning was chosen as the machining method to minimize the effect of an interrupted cut. Considering the machinability of a hard-to-machine alloy, the cutting material with the fine-grained WC-Co carbide with the TiN/TiAlN gradient PVD coating was selected. The progression of cutting forces, chip formation and tool wear were evaluated. Images of the material structure of the semi-finished product and the resulting chips were taken. From the measured values, graphs of the dependence of the chip thickness ratio on the cutting speed and the Taylor´s dependence of the tool durability on the cutting speed were obtained. The aim of the experiment was selection and verification of suitable cutting conditions for efficient machining of this superalloy, especially the appropriate value of the cutting speed. The recommended value of the cutting speed was 50-70 m.min -1 , while the tangential component of the cutting force was in the values usual for corrosionresistant steels.

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Cobalt-based alloy surfacing process optimization and surfacing material performance analysis

Cited by 2 publications

References 27 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Machinability of UMCo50 Cobalt Superalloy

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