Degradation mechanisms of pcBN tool material during Friction Stir Welding of Ni-base alloy 625

Hanke, Stefanie; Lemos, G. V. B.; Bergmann, Luciano; Martinazzi, Douglas; Santos, J.F. dos; Strohaecker, Telmo Roberto

doi:10.1016/j.wear.2017.01.070

Cited by 30 publications

(25 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reported peak temperature in Table 7 at a tool rotational speed of 1200 rpm is 1549 K. This observation corroborated well with our earlier experimental based publication [24]. The higher tungsten content in the welds, which is observed for welds at higher tool rotational speeds, is attributed to the thermal softening of the W-Re binder phase and diffusion of tungsten from the tool into the stir zone at high temperatures (> 1373 K).…”

Section: Resultssupporting

confidence: 90%

“…Tables 2 and 3 show reported parameters and tool materials used in FSW of high strength and high temperature alloys [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Tungsten-based tools exhibited rapid wear in FSW of several different alloys (refer Table 2).…”

Section: Introductionmentioning

confidence: 99%

“…The Iridium tools exhibited lesser wear and greater longevity compared to the pcBN tools. Park et al [27] and Hanke et al [24] reported rapid 2/10 Tecnol Metal Mater Min. 2021;18:e2455 made FSW Gantry machine fitted with servomotors, data acquisition instrumentations, and control systems.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Probing underlying mechanisms for PCBN tool decay during friction stir welding of nickel-based alloys

Vicharapu¹,

Lemos²,

Bergmann³

et al. 2021

Tecnol. Metal. Mater. Min.

View full text Add to dashboard Cite

Friction stir welding (FSW) of nickel-based alloys can provide joints with improved corrosion resistance and mechanical properties that are deteriorated significantly during fusion welding of these alloys. However, rapid wear and poor longevity of tools are major concerns for FSW of nickel-based alloys. Polycrystalline cubic Boron Nitride (pcBN) has emerged as an alternative tool material due to its enhanced strength and stiffness but its use for FSW of nickel-based alloys is rarely explored. An investigation is therefore undertaken to examine FSW of Inconel 625, which is a commonly used nickel-based alloy, by experimental investigation and computational process modelling. The potential failure mechanisms of pcBN tools during FSW of Inconel 625 are examined. The results showed that the thermal softening of the tungstenrhenium binder phase and dissolution of tungsten into Inconel 625 are potential mechanisms to early wear and failure of the pcBN tools for FSW of Inconel 625.

show abstract

Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Probing underlying mechanisms for PCBN tool decay during friction stir welding of nickel-based alloys

Vicharapu¹,

Lemos²,

Bergmann³

et al. 2021

Tecnol. Metal. Mater. Min.

View full text Add to dashboard Cite

show abstract

“…In addition, fusion welding may also be related to unhealthy environments and exposure to radiation 7 . Friction based processing is characterized by solid state joining methods that can weld several materials both ferrous based alloys 8 and non-ferrous alloys such as titanium 9 and nickel based alloys 10,11 . As potential advantages over conventional welding could be the possibility of achieving an excellent joint quality, joining of dissimilar materials, cost savings and increased mechanical properties 12,13,14 .…”

Section: Introductionmentioning

confidence: 99%

Replacement of Gas Metal Arc Welding by Friction Welding for Joining Tubes in the Hydraulic Cylinders Industry

et al. 2018

View full text Add to dashboard Cite

Friction welding is a solid state technology which has been used worldwide. Potential advantages may be recognized as reducing welding project costs, weld weight, environmental impact and to promote enhanced mechanical properties. However, traditional welding methods are still a common practice in many engineering areas. In this sense, this work aims to present the technical advantages for replacing gas metal arc welding (GMAW) by friction welding for joining hydraulic cylinder tubes. The feasibility of friction welding was demonstrated by microstructural analysis, mechanical properties and hydrostatic pressure testing. The results showed enhanced mechanical properties for the friction welded tubes. In addition, macro and microstructural features presented distinguishable process characteristics which reflect in different microhardness values. The friction weld exhibited a better behavior in bending as well as hydrostatic tests.

show abstract

“…Recently, authors 6 have suggested that there is an emergent potential of applying this technique to oil and gas pipes. Still, various alloys can be welded, among them, it can be mentioned steel 12 and nonferrous ones such as Al 13,14,15,16,17 , Ti 18 and Ni 6,19,20 . Finally, this process can be a solution for joining dissimilar materials such Ti and Al 21 , Al and Mg 22 , Al and Cu 23 , which proves a unique welding perspective by this technology.…”

Section: Introductionmentioning

confidence: 99%

Towards Qualification of Friction Stir Welding to AA5083-O and AA5052-O Aluminum Alloys

et al. 2019

View full text Add to dashboard Cite

Friction Stir Welding (FSW) is an excellent alternative for joining dissimilar and similar materials in comparison to conventional welding processes. In this sense, this work aims at qualifying FSW to similar AA5083-O and AA5052-O aluminum alloys, with 6.35 mm thickness, in a CNC machining center. Therefore, four welding experiments were undertaken. At first, two types of plate surface finish were considered before joining. Afterward, two tool probe geometries, and changes in the base material position were evaluated. Hence, the welds were mainly analyzed by metallography, tensile testing, and bending tests. Results showed that the machining step to oxides removal and plates alignment is beneficial for the weld processing and the factor that has significant influence to achieve suitable joints is the tool probe geometry. Finally, by obtaining an average ultimate tensile strength (UTS) of around 191 MPa, enhanced microhardness, and bent angle of approximately 150°, the best joint was chosen.

show abstract

Degradation mechanisms of pcBN tool material during Friction Stir Welding of Ni-base alloy 625

Cited by 30 publications

References 15 publications

Probing underlying mechanisms for PCBN tool decay during friction stir welding of nickel-based alloys

Probing underlying mechanisms for PCBN tool decay during friction stir welding of nickel-based alloys

Replacement of Gas Metal Arc Welding by Friction Welding for Joining Tubes in the Hydraulic Cylinders Industry

Towards Qualification of Friction Stir Welding to AA5083-O and AA5052-O Aluminum Alloys

Contact Info

Product

Resources

About