Tool wear in the friction-stir welding of aluminum alloy 6061+20% Al2O3: a preliminary study

Prado, R. A.; Murr, L. E.; Shindo, Daisuke; Soto, K. F.

doi:10.1016/s1359-6462(01)00994-0

Cited by 141 publications

(75 citation statements)

References 7 publications

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“…The EDS analysis demonstrates that these bands contain W and Re elements (Figure 5d), which formed by the tool wear owing to high friction load between weldments and tool. A related study has been conducted by Prado et al in the case of the tool wear behavior in FSW 6061Al-20% Al2O3 composite [39]. According to the microstructures of TEM bright-and dark-field images in SZ (Figure 6a,b), some austenite can be clearly observed, which is the typical evidence of transformation from martensitic to austenite during FSW process.…”

Section: Macro-and Microstructure Observationmentioning

confidence: 79%

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Microstructure, Mechanical and Corrosion Properties of Friction Stir Welding High Nitrogen Martensitic Stainless Steel 30Cr15Mo1N

Geng

Feng

et al. 2016

Metals

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High nitrogen martensitic stainless steel 30Cr15Mo1N plates were successfully welded by friction stir welding (FSW) at a tool rotation speed of 300 rpm with a welding speed of 100 mm/min, using W-Re tool. The sound joint with no significant nitrogen loss was successfully produced. Microstructure, mechanical and corrosion properties of an FSW joint were investigated. The results suggest that the grain size of the stir zone (SZ) is larger than the base metal (BM) and is much larger the case in SZ-top. Some carbides and nitrides rich in chromium were found in BM while not observed in SZ. The martensitic phase in SZ could transform to austenite phase during the FSW process and the higher peak temperature, the greater degree of transformation. The hardness of SZ is significantly lower than that of the BM. An abrupt change of hardness defined as hard zone (HZ) was found in the thermo-mechanically affected zone (TMAZ) on the advancing side (AS), and the HZ is attributed to a combination result of temperature, deformation, and material flow behavior. The corrosion resistance of SZ is superior to that of BM, which can be attributed to less precipitation and lower angle boundaries (LABs). The corrosion resistance of SZ-bottom is slight higher than that of SZ-top because of the finer grained structure.

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Section: Macro-and Microstructure Observationmentioning

confidence: 79%

Section: Macro-and Microstructure Observationmentioning

confidence: 99%

Microstructure, Mechanical and Corrosion Properties of Friction Stir Welding High Nitrogen Martensitic Stainless Steel 30Cr15Mo1N

Geng

Feng

et al. 2016

Metals

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“…Wear of tools used during FSW is a critical issue and is discussed in detail by several authors [3] [4] [5] [6]. For softer metals such as aluminum, frictional forces between the tool and workpiece are relatively low, leading to less tool wear and thereby allowing the use of simpler tool designs that can have a long useful lifetime.…”

Section: Introductionmentioning

confidence: 99%

Analysis of High-Power Diode Laser Heating Effects on HY-80 Steel for Laser Assisted Friction Stir Welding Applications

Wiechec¹,

Baker²,

McNelley³

et al. 2017

WJET

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In this research, several conditions of high power diode laser heated HY-80 steel were characterized to determine the viability of using such lasers as a preheating source before friction stir welding in order to reduce frictional forces thereby reducing tool wear and increasing welding speeds. Differences in microstructures within heat affected zones were identified at specific laser powers and traverse speeds. Vickers hardness values were recorded and analyzed to validate the formation of additional martensite in diode laser heated regions of HY-80 steel. Conditions that produced little to no additional martensite were identified and relationships among high power diode laser power, traverse speed, and martensite formation were determined. The development of heat affected zones, change in grain structure, and creation of additional martensite in HY-80 can be prevented through the optimization of laser amperage and transverse speed.

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“…Therefore, the original properties of AMCs can be held. A few researchers carried out preliminary studies on this topic, and the feasibility of the FSW process was demonstrated [8] [9]. However, the hard ceramic particulates in the AMCs resulted in appreciable tool wear when the FSW tool was made of tool steel [10].…”

Section: Introductionmentioning

confidence: 99%

Wear characteristics of a W6Mo5Cr4V2 high speed steel in friction stir welding of AA6061/SiC/55p composite

Song¹,

Guo²,

Feng

et al. 2015

Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

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Tool wear in the friction-stir welding of aluminum alloy 6061+20% Al2O3: a preliminary study

Cited by 141 publications

References 7 publications

Microstructure, Mechanical and Corrosion Properties of Friction Stir Welding High Nitrogen Martensitic Stainless Steel 30Cr15Mo1N

Microstructure, Mechanical and Corrosion Properties of Friction Stir Welding High Nitrogen Martensitic Stainless Steel 30Cr15Mo1N

Analysis of High-Power Diode Laser Heating Effects on HY-80 Steel for Laser Assisted Friction Stir Welding Applications

Wear characteristics of a W6Mo5Cr4V2 high speed steel in friction stir welding of AA6061/SiC/55p composite

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