Effect of a Ni interlayer on microstructure and mechanical properties of WC-12Co cermet / SC45 steel friction stir welds

Avettand-Fènoël, Marie-NoËlle; Nagaoka, Toru; Fujii, Hidetoshi; Taillard, Roland

doi:10.1016/j.jmapro.2019.02.032

Cited by 20 publications

(4 citation statements)

References 43 publications

(40 reference statements)

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“…The present studies proved the feasibility of improving the strength of Al/Cu [21][22][23] and WC-12Co cermet/45 steel [24] FSW joints by Ni interlayer. However, few studies have been reported for the FSW of Al/Mg dissimilar alloys.…”

Section: Introductionsupporting

confidence: 72%

Effect of Ni interlayer on microstructure and mechanical properties of Al/Mg dissimilar friction stir welding joints

Dong

Lin

Zhu

et al. 2021

Science and Technology of Welding and Joining

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In this work, friction stir welding (FSW) was carried out for the flat butt welding tests of Al/Mg dissimilar alloys by introducing Ni foil interlayer with different thickness. The effect of the thickness of interlayer on microstructure and mechanical properties of the FSW joints was explored. The results revealed that with the increase of the thickness of Ni, the effective bearing area of the weld nugget zone (WNZ) increased. It achieved the maximum value when the thickness of interlayer was 0.3 mm, and a dense 'onion rings' structure which was composed of the cross distributions trips of magnesium alloy, aluminium alloy and the intermetallic compounds (IMCs), as well as the Ni particles of varying sizes were formed. Compared to the joint without introducing Ni, the introduction of Ni made the joints generate Mg 2 Ni and the Al 3 Mg 2 was partially replaced and led to the ultimate tensile strength (UTS) increased by 13.5%.

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Section: Introductionsupporting

confidence: 72%

Effect of Ni interlayer on microstructure and mechanical properties of Al/Mg dissimilar friction stir welding joints

Dong

Lin

Zhu

et al. 2021

Science and Technology of Welding and Joining

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“…With its high hardness, high melting point, good wear resistance and corrosion resistance, metal borides are often widely used in mechanical processing, ore grinding, alloy smelting, parts manufacturing and other fields [ 1 , 2 , 3 , 4 ]. In the past few years, remarkable achievements have been made in the study of the structures and properties of different types of metal borides, such as the top-down nanostructures of Strontium Hexaboride [ 5 ], the phase stability in ternary (Ba x Ca 1−x )B 6 and (Ba x Sr 1−x )B 6 compounds [ 6 ], and the anisotropic thermal expansion properties of MoAlB, Cr 2 AlB 2 , Mn 2 AlB 2 and Fe 2 AlB 2 of selective layered ternary transition metal borides [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Structure and Properties of Mo2FeB2-Based Cermets Prepared by Welding Metallurgy and Vacuum Sintering

Sun

Jin

et al. 2020

Materials

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At present, most Mo2FeB2-based cermets are prepared by vacuum sintering. However, vacuum sintering is only suitable for ordinary cylinder and cuboid workpieces, and it is difficult to apply to large curved surface and large size workpieces. Therefore, in order to improve the flexibility of preparing Mo2FeB2 cermet, a flux cored wire with 70% filling rate, 304 stainless steel, 60 wt% Mo powder and 40 wt% FeB powder was prepared. Mo2FeB2 cermet was prepared by an arc cladding welding metallurgy method with flux cored wire. In this paper, the microstructure, phase evolution, hardness, wear resistance and corrosion resistance of Mo2FeB2 cermets prepared by the vacuum sintering (VM-Mo2FeB2) and arc cladding welding metallurgy method (WM-Mo2FeB2) were systematically studied. The results show that VM-Mo2FeB2 is composed of Mo2FeB2 and γ-CrFeNi.WM-Mo2FeB2 is composed of Mo2FeB2, NiCrFe, MoCrFe and Cr2B3. The volume fraction of hard phase in WM-Mo2FeB2 is lower than that of VM-Mo2FeB2, and its hardness and corrosion resistance are also slightly lower than that of VM-Mo2FeB2, but there are obvious pores in the microstructure of VM-Mo2FeB2, which affects its properties. The results show that WM-Mo2FeB2 has good diffusion and metallurgical bonding with the matrix and has no obvious pores. The microstructure is compact and the wear resistance is better than that of VM-Mo2FeB2.

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“…Subsequently, the crack was thought to be the main factor for the deterioration of the tensile strength. Avettand-Fènoël et al explored the dissimilar friction stir welding of WC-Co cermet to steels without an interlayer [103] and with a nickel interlayer [104]. More retained austenite was observed in the nugget with increased Ni interlayer thickness.…”

Section: Friction Weldingmentioning

confidence: 99%

Dissimilar Welding and Joining of Cemented Carbides

Wang

Chen

et al. 2019

Metals

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Cemented carbides have been widely used in aerospace, biomedical/wearable sensor, automobile, microelectronic, and other manufacturing industries owing to their superior physical and chemical properties at elevated temperatures. These superior properties, however, make it difficult to process these materials using conventional manufacturing methods. In this article, an overview of the welding and joining processes of cemented carbide and steel is given, followed by a few examples of welding processes. Cemented carbides can be successfully joined by sinter-bonding, brazing and soldering, laser beam welding, tungsten inert gas (TIG) welding, diffusion welding, friction welding, electron-beam welding, and chemical vapor deposition. An overview of the benefits and drawbacks of brazing and soldering of cemented carbide and steel is presented, including reports on joint design, processes, and selection of brazing filler metals. The laser welding of cemented carbide and steel is addressed and reviewed, including reports on gap bridging ability, the inclusion/absence of filler metals, interlayers, and laser/TIG hybrid welding. Finally, a section is devoted to explaining the main issues remaining in the welding and joining of cemented carbide, corresponding solutions, and future work required.

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Effect of a Ni interlayer on microstructure and mechanical properties of WC-12Co cermet / SC45 steel friction stir welds

Cited by 20 publications

References 43 publications

Effect of Ni interlayer on microstructure and mechanical properties of Al/Mg dissimilar friction stir welding joints

Effect of Ni interlayer on microstructure and mechanical properties of Al/Mg dissimilar friction stir welding joints

Comparison of Structure and Properties of Mo2FeB2-Based Cermets Prepared by Welding Metallurgy and Vacuum Sintering

Dissimilar Welding and Joining of Cemented Carbides

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