The heat treatment of tungsten carbide-cobalt alloys

Tumanov, V. I.; Funke, V.F.; Trukhanova, Z.S.; Novikova, T. A.; Kuznetsova, K. F.

doi:10.1007/bf00774484

Cited by 5 publications

(3 citation statements)

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“…8, curve 2), is lower than the critical level for hard alloy VK6, from which the mandrel is made. So, at temperatures of 1000…1100 K the yield point at compression for hard alloys VK6, VK8 decreases to 13…3 MPa [39], and by the results of the performed computations, the maximum value of normal pressure on the mandrel surface between points 2 and 3 (Fig. 8) reaches 2.54 MPa.…”

Section: Results Of Fsw Numerical and Experimental Studiesmentioning

confidence: 71%

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Analysis of Thermal Processes during Friction Stir Welding of Metals

Maystrenko¹,

Nesterenkov²,

Dutka³

et al. 2020

SSP

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Developed was a computer model of temperature field in the tool and parts in the process of their friction stir welding (FSW). Modeling of the temperature field was carried out for both successive stages of welding process, i.e. plunging of pin of tool working element into the part (1st stage) and progressive motion of plunged pin in the part (2nd stage). The mathematical model represents a nonlinear equation of transient heat conduction, which takes into account progressive pin movement during the 2nd stage of welding. Two constituents describe the heat sources, appearing in welding. The first one considers power of heat sources, caused by friction of the tool with the parts on contact surfaces, the second one takes into account heat generation, promoted by mechanical deformation of the part material. Mathematical modeling and experimental examination of temperature field were carried out for tool from cubic boron nitride (cubonit) and hard alloy in copper parts during FSW. Adequacy of the developed model was determined based on correlation of numerical and experimental results.

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Section: Results Of Fsw Numerical and Experimental Studiesmentioning

confidence: 71%

“…The speed of pin rotation nr = 1180 rpm, average welding speed vav = 0.563 mm/s. Thermophysical properties of copper, cubonit, hard alloy and steel 40 were selected from [36][37][38][39]45]. Information on temperature dependence of copper yield point was taken from [40,41].…”

Section: Results Of Fsw Numerical and Experimental Studiesmentioning

confidence: 99%

Analysis of Thermal Processes during Friction Stir Welding of Metals

Maystrenko¹,

Nesterenkov²,

Dutka³

et al. 2020

SSP

View full text Add to dashboard Cite

show abstract

“…The structure of the Co phase plays an important role in the strength and toughness of cemented carbides. As early as the 1940s, scholars began to study the heat treatment of cemented carbides [1][2][3][4][5]. The focus of research has mainly been on the effect heat treatment has on the texture of the Co phase and the changes in the cemented carbide properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Treatment on the Microstructure and Properties of Ultrafine WC–Co Cemented Carbide

Zhang

Chang

et al. 2019

Metals

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In this paper, the effect of heat treatment on the microstructure and properties of a 0.8 μm WC–10%Co ultrafine cemented carbide was studied. The results show that the microstructural differences in ultrafine WC–Co cemented carbides without and with heat treatment are mainly reflected in the Co phase. For conventional cemented carbides, the hardness and wear resistance can be increased only at the expense of the toughness and strength. An ultrafine-grained WC–Co cemented carbide with good hardness and toughness can be obtained by strengthening the Co phase through an appropriate heat treatment process, and the service life of the ultrafine-grained WC–Co cemented carbide can be improved under actual cutting conditions.

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Phase Transformations in the Binder Phase of Co-W-C Cemented Carbides

Wirmark

Dunlop

1983

Science of Hard Materials

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The heat treatment of tungsten carbide-cobalt alloys

Cited by 5 publications

References 0 publications

Analysis of Thermal Processes during Friction Stir Welding of Metals

Analysis of Thermal Processes during Friction Stir Welding of Metals

Effect of Heat Treatment on the Microstructure and Properties of Ultrafine WC–Co Cemented Carbide

Phase Transformations in the Binder Phase of Co-W-C Cemented Carbides

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