Effect of friction stir processing with SiC particles on microstructure and hardness of AZ31

Morisada, Yoshiaki; Fujii, Hidetoshi; Nagaoka, Toru; Fukusumi, Masao

doi:10.1016/j.msea.2006.06.089

Cited by 305 publications

(132 citation statements)

References 18 publications

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“…This may be due to the strong stirring action which was considered to be one of the most prominent advantages of FSP over all welding and surfacing processes. 29,[33][34][35][36][37][38][39][40] It was reported by some literatures 22,31) that one of the problems in the fabrication of the hybrid-MMCs by fusion processes or even by other ordinary solid-state processes such as power metallurgy (PM) was the agglomeration of the deferent reinforcements, especially the finer particles. 22) In contrast to the reinforcement particles distribution over the most areas of the nugget zone, there were some inhomogeneity in the peripheral areas as shown in Fig.…”

Section: Composites Properties After Triple Passesmentioning

confidence: 99%

“…According to the previous works, the obtained hardness values are quite similar to other MMCs fabricated by FSP and also other methods if we take into consideration that our substrate was pure Al. For example, Morisada et al 35) distributed SiC particles in AZ31 (HV 40) with FSP, and the hardness of the resulted MMCs was about 70 HV. Ü nlü 20) fabricated Al/ Al2O3 MMCs with powder metallurgy and the resulted hardness was 55 HV.…”

Section: Composites Properties After Triple Passesmentioning

confidence: 99%

“…29,32,33) It is considered that SMMCs are one of the latest applications of FSP. [34][35][36][37][38][39][40] The stirring action and frictional heat generated by the FSP tool can be used to distribute ceramic particles as reinforcement on the surface of light metals like aluminum and magnesium. [34][35][36][37][38][39][40] The present authors 39,40) succeeded in uniformly distributing SiC particles of 1.25 mm size in a surface layer of a few mm thickness on Al 1050-H24 plates to form surface composites by FSP.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Surface-Hybrid-MMCs Layer on Aluminum Plate by Friction Stir Processing and Its Wear Characteristics

et al. 2009

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Aluminum-base hybrid composites reinforced with mixtures of SiC and Al 2 O 3 particles 1.25 mm in average size have been fabricated on an A 1050-H24 aluminum plate by friction stir processing (FSP) and their wear resistance has been investigated as a function of the relative weight ratios of the particles. A mixture of SiC and Al 2 O 3 powders of different weight ratios was packed into a groove of 3 mm width and 1.5 mm depth cut on the aluminum plate, and covered with an aluminum sheet 2 mm thick. A FSP tool of square probe shape, rotated at a speed of 1500 rpm, was plunged into the plate through the cover sheet and the groove, and moved along the groove at a travelling speed of 1.66 mm/s. After the hybrid composite was fabricated on the Al plate, the homogeneity of the particles distribution inside the Al matrix has been evaluated from the macro/microstructure and hardness distribution. Moreover, the wear characteristics of the resulted hybrid composites were evaluated using a ball-on-disc wear tester at room temperatures at normal loads of 2 and 5 N. As a result, it was found that the reinforcement particles were distributed homogenously inside the nugget zone without any defects except some voids that appeared around the Al 2 O 3 particles. The average hardness decreased with increasing the relative content of Al 2 O 3 particles. Regarding the wear characteristics, the wear volume losses of the hybrid composites depended on the applied load and the relative ratio of SiC and Al 2 O 3 particles. The hybrid composite of 80% SiC þ 20% Al 2 O 3 showed superior wear resistance to 100% SiC and Al 2 O 3 or any other hybrid ratios at a normal load of 5 N.

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Section: Composites Properties After Triple Passesmentioning

confidence: 99%

Section: Composites Properties After Triple Passesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fabrication of Surface-Hybrid-MMCs Layer on Aluminum Plate by Friction Stir Processing and Its Wear Characteristics

et al. 2009

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“…• fine grained structure [4], • surface composite [5], • microstructural modification of cast alloys [6], • alloying with specific elements [7], • improvement of welding joint quality [8].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and modelling of Friction Stir Processing of cast aluminium alloy AlSi9Mg

Węglowski¹,

Dymek²,

Hamilton³

2013

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Abstract. Friction Stir Processing (FSP) is a novel solid state processing technique which can be used for microstructural modification of surface layers in metallic materials. This paper analyzes the effects of FSP process parameters on spindle torque acting on the tool and on the tool temperature. It has been shown that an increase in the rotational speed brings about a decrease in the torque and an increase of temperature. For temperature estimation in the stir zone a numerical model was applied, while for predicting a relationship between the spindle torque acting on the tool, rotational and travelling speeds and the down force, the artificial neural networks approach was employed. Light and electron (scanning and transmission) microscopy investigation showed that the FSP process reduces porosity and produces a more uniform distribution of second-phase particles.

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“…Its use comes with the following engineering advantages: 1) Low cost, 2) Ease of handling and 3) Good strength and ductility. Using the friction stir processing technique recently, AZ31 has been surface-reinforced with SiC microparticulates [1], C 60 molecules [2], and multi-walled carbon nanotubes [3]. Here, it was reported that the base matrix was consequently hardened due to good dispersion.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotube Addition to Simultaneously Enhance Strength and Ductility of Hybrid AZ31/AA5083 Alloy

Paramsothy¹,

Gupta²,

Chan³

et al. 2011

MSA

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Effect of friction stir processing with SiC particles on microstructure and hardness of AZ31

Cited by 305 publications

References 18 publications

Fabrication of Surface-Hybrid-MMCs Layer on Aluminum Plate by Friction Stir Processing and Its Wear Characteristics

Fabrication of Surface-Hybrid-MMCs Layer on Aluminum Plate by Friction Stir Processing and Its Wear Characteristics

Experimental investigation and modelling of Friction Stir Processing of cast aluminium alloy AlSi9Mg

Carbon Nanotube Addition to Simultaneously Enhance Strength and Ductility of Hybrid AZ31/AA5083 Alloy

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