Analysis of Formation and Interfacial WC Dissolution Behavior of WC-Co/Invar Laser-TIG Welded Joints

Xu, Penghui; Ren, Jing; Zhang, Peilei; Gong, Hongyu; Yang, Shanglei

doi:10.1007/s11665-012-0279-z

Cited by 30 publications

(6 citation statements)

References 30 publications

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“…Under vibration and impact, cemented carbide composites have low toughness due to the inherent brittle nature of carbides [11][12][13]. Joining of WC-Co to structural steel is a dissimilar material joining problem [14], involving various joining techniques, including brazing [15][16][17], diffusion bonding [18][19][20], fusion welding [21][22][23][24], and partial transient liquid-phase bonding [25]. Among the joining techniques, brazing is a commonly used technique for joining cemented carbides to steels, because of its simple processing and relatively low cost.…”

Section: Introductionmentioning

confidence: 99%

Progress in Improving Joint Strength of Brazed Cemented Carbides and Steels

Sharma

Kannan

Hogan

et al. 2021

Science and Technology of Welding and Joining

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Surface mining causes significant wear damage that affects equipment performance, reliability, and lead to associated downtime costs. To improve the wear resistance of components used in natural resources industries, cemented carbide tiles are joined to engaging surfaces of the components. Joining of cemented carbide to structural steel can be achieved by various processes, among which brazing is commonly used owing to its relatively simple processing and low cost. A significant challenge in brazing cemented carbide tiles to steels is the poor joint strength. This article aims to review the recent progress in improving joint strength of cemented carbide/steel brazing. Recent progress on the key factors, including type of filler metals, evolution of joint microstructure, generation of residual stresses, and process parameters have been closely examined and critically analysed. Future directions of research on brazing cemented carbide tiles to steel in order to improve joint strength have been proposed.

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Section: Introductionmentioning

confidence: 99%

Progress in Improving Joint Strength of Brazed Cemented Carbides and Steels

Sharma

Kannan

Hogan

et al. 2021

Science and Technology of Welding and Joining

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“…Laser welding is also a potential method to fabricate dissimilar WC-Co/steel joints. The properties of laser-welded hard metals were considered to be sufficient for the fabrication of values [57] or drag picks to be used in production in the rock mining industry or for oil and gas applications.…”

Section: Introductionmentioning

confidence: 99%

“…The microstructures labeled I, II, and III in Figure 8k at the WC-Co/Invar interface are shown at a higher magnification in Figure 8l-n and consisted of columnar crystals, cellular crystals, and a eutectic structure with fir-tree crystals and dendritic crystals, respectively. The columnar crystals were surrounded by many fir-tree crystals [57,76].…”

mentioning

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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“…Presently, there are a variety of welding methods applied to the connection of Invar alloy, including shielded metal arc welding (SMAW), submerged arc welding (SAW), tungsten inert gas (TIG) arc welding, metal inert gas (MIG) arc welding, friction stir welding (FSW) and laser welding (LW). [5][6][7] Besides, some improved welding methods have been developed, for example, laser-TIG hybrid welding, 8 pulsed MIG and so on.…”

Section: Introductionmentioning

confidence: 99%

A comparative study between pulsed metal inert gas welding and continuous metal inert gas welding on thin Invar alloy

Zhan

Meng

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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The pulsed metal inert gas welding and continuous metal inert gas welding with various parameters are implemented on 2-mm-thick Invar36 alloy plates. The pulsed metal inert gas welding and continuous metal inert gas welding with the same filler metal and base metal are compared by considering the morphology, microstructure of weld seam and mechanical properties. It is indicated that the size of weld seam obtained in pulsed welding is significantly different from that in continuous welding. Meanwhile, it reveals that there is a triangle zone at the bottom of weld seam in both types of welding technology for Invar36 alloy. The microstructure in triangle zone of pulsed welding and continuous welding is focused. In addition, the essential difference between pulsed metal inert gas welding and continuous metal inert gas welding is discussed in detail by analyzing the formation mode of the droplet metal at the end of wire.

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Analysis of Formation and Interfacial WC Dissolution Behavior of WC-Co/Invar Laser-TIG Welded Joints

Cited by 30 publications

References 30 publications

Progress in Improving Joint Strength of Brazed Cemented Carbides and Steels

Progress in Improving Joint Strength of Brazed Cemented Carbides and Steels

Dissimilar Welding and Joining of Cemented Carbides

A comparative study between pulsed metal inert gas welding and continuous metal inert gas welding on thin Invar alloy

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