Mechanical properties and microstructure of WC-Fe-Ni-Co cemented carbides prepared by vacuum sintering

Gao, Yang; Luo, Binghui; He, Ketai; Jing, Hui-bo; Bai, Zongqing; Chen, Wei; Zhang, Wenwen

doi:10.1016/j.vacuum.2017.06.028

Cited by 66 publications

(17 citation statements)

References 36 publications

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“…The vacuum sintering is a prospective sintering technique. Because it is not only easy to operate, but also can avoid the harmful influence of oxygen [21].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and properties of 90W-4Ni-6Mn alloy prepared by vacuum sintering

Duan

Zhou

Guo

et al. 2020

Mater. Res. Express

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Tungsten-nickel-manganese alloy is an excellent potential replacement of depleted uranium alloy for kinetic energy penetrator (KEP) due to its high self-sharpening effect. In this work, the 90W-4Ni-6Mn alloy was prepared by vacuum sintering, and the effects of the sintering temperature and oxygen content on its microstructure and properties were discussed. Sintering temperature had a great influence on the properties of tungsten heavy alloy. The optimal properties of 90W-4Ni-6Mn with the relative density of 99.43%, the W grain size of 3.80 μm, and the compressive strength of 2790 MPa were obtained at the sintering temperature of 1125°C for 60 min under a vacuum of 10 −2 ∼10 −3 Pa. With the increase of oxygen content, the densification of powders became more difficult, and the microstructure homogeneity and mechanical properties of sintered samples decreased accordingly. The results provide a new effective way to prepare W-Ni-Mn alloy with high performance.

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“…The vacuum sintering is a prospective sintering technique. Because it is not only easy to operate, but also can avoid the harmful influence of oxygen [21].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and properties of 90W-4Ni-6Mn alloy prepared by vacuum sintering

Duan

Zhou

Guo

et al. 2020

Mater. Res. Express

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“…[ 150,151 ] Initial stages involved in this technique are similar to that of high energy ball milling–sintering; however, it differs during vacuum or gas sintering after compaction. [ 152 ] In an investigation, aiming mechanical and microstructural property evaluation for alloys, Gao et al [ 153 ] increased temperature during sintering to a certain limit and reported improved hardness with uniform dispersion and negligible porosity. The main steps involved in this technique are shown in Figure .…”

Section: Processing Techniques Of Amcsmentioning

confidence: 99%

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

2020

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Aluminum metallic composites (AMCs) have been recognized as promising material exhibiting excellent functional and structural properties that can be significantly tailored to meet the industrial demands as well as to meet the design criteria for many applications such as aerospace, automobiles, marine, defense, and so on. Herein, an effort is made to provide an extensive overview of the various processing techniques adopted for the development of AMCs. Various processing kinetics of stir casting technique are elaborated comprehensively in terms of existing challenges, conceivable modifications incorporated in it. Considering the critical assessment on mechanical properties made through various kinds of literature, an electromagnetic stir-squeeze casting synergically equipped with ultrasonic transducing probe and bottom pouring attachments is recommended as the most appropriate processing technique for the development of AMCs. Moreover, appropriate recommendations regarding process variables and additives/modifiers, and potential future research opportunities are also addressed significantly to encourage the ongoing and upcoming researchers, which lead this critical Review toward novelty and uniqueness.

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“…But some scholars believe that Fe element can be used as part of the binder to prepare cemented carbide. Gao 18 used Fe powder with high purity in material selection, controllable grain size, and relatively low O content. After a certain process optimization, WC‐Fe‐Ni‐Co cemented carbides composed of original powder with excellent performance are manufactured.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fe content on the mechanical properties of a regenerated cemented carbide

Wang

Zhang³

et al. 2021

Int J Applied Ceramic Tech

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Impurity elements such as Fe, Ni, Zn, and Ca introduced in the recycling process of regenerated cemented carbide affect the structure and mechanical properties of the regenerated cemented carbide. Unlike other impurity elements, Fe and Co belong to group VIII elements and have similar chemical and physical properties. The nature of Fe is closely related to the size and type of waste cemented carbide during recycling and pollution observed during production. Waste cemented carbide is processed via zinc melting to obtain WC, and the regenerated YG10 cemented carbide was prepared via low‐pressure sintering in this study. The effects of impurity element Fe on the microstructure and mechanical properties of a regenerated cemented carbide were studied via X‐ray diffraction, scanning electron microscopy, magnetic property tests, and mechanical property tests. This study demonstrates that an increase in the Fe content leads to a decrease in the bending strength and hardness; further, the mechanism of grain growth caused by the increase in Fe content is revealed. In addition, the mechanism of decreasing wear resistance of the regenerated YG10 cemented carbide with increasing Fe content was discussed. The introduction of Fe as an impurity has evident adverse effects on the mechanical properties of the alloy. To satisfy the production requirements, the Fe content in the mixed powder must to be retained within 0.5%.

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Mechanical properties and microstructure of WC-Fe-Ni-Co cemented carbides prepared by vacuum sintering

Cited by 66 publications

References 36 publications

Microstructures and properties of 90W-4Ni-6Mn alloy prepared by vacuum sintering

Microstructures and properties of 90W-4Ni-6Mn alloy prepared by vacuum sintering

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

Effect of Fe content on the mechanical properties of a regenerated cemented carbide

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