Post-processing of metal matrix composites by friction stir processing

Sharma, Vipin; Singla, Yogesh Kumar; Gupta, Yashpal; Raghuwanshi, Jitendra

doi:10.1063/1.5032909

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…Particle-reinforced composite castings prepared by traditional casting technology have defects such as uneven particle distribution and large porosity [18][19][20], and do not have high strength and ductility compared with the base material [21], resulting in the inability to fully exert the performance of composite materials. To overcome this problem, Friction Stir Processing (FSP) is widely used in the preparation of composite materials [22][23][24]; through the continuous stirring motion of the stirring tool, the reinforced particles are evenly distributed throughout the matrix, which reduces the porosity and improves the friction and wear properties of the composite [25].…”

Section: Introductionmentioning

confidence: 99%

Study on Friction and Wear Properties and Mechanism at Different Temperatures of Friction Stir Lap Welding Joint of SiCp/ZL101 and ZL101

Yuan

Liao

Jiang

et al. 2022

Metals

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In order to achieve the goal of lightening the braking system of urban rail trains, SiCp/ZL101 and ZL101 plates were welded by friction stir lap welding (FSLW) to prepare a new type of brake disc material. The friction and wear properties of the friction-stir-processed composite material were studied at different temperatures (30 °C, 100 °C, 150 °C, 200 °C, 250 °C, 300 °C) to provide a theoretical basis for the evaluation of braking performance. The experimental results showed that the sliding friction processes at each temperature were relatively stable, the friction coefficients did not vary much and the average friction coefficients changed slightly, stabilizing at about 0.4. The wear extent and the depth of wear scars increased with the increase in the temperature, reaching the highest at 150 °C and then began to decrease. At room temperature, the wear forms were mainly oxidative wear and abrasive wear; as the temperature rose, under the cyclic shearing action of the grinding ball, the abrasive debris fell off under the expansion of fatigue cracks and fatigue wear was the main form at this stage. When the temperature reached 200 °C, it began to show the characteristics of adhesive wear; after 250 °C, due to the gradual formation of a mechanical mixed layer containing more SiC particles and oxides on the wear surface, it exhibited high-temperature lubrication characteristics, and the wear extent was equivalent to 35% of the wear extent at normal temperature, indicating that the composite material had good high-temperature friction and wear properties.

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Section: Introductionmentioning

confidence: 99%

Study on Friction and Wear Properties and Mechanism at Different Temperatures of Friction Stir Lap Welding Joint of SiCp/ZL101 and ZL101

Yuan

Liao

Jiang

et al. 2022

Metals

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“…have been used to process MMCs [20][21][22]. Nonetheless, friction stir processing (FSP) of MMCs emerged as an effective strategy in postprocessing of MMCs [23][24][25]. The FSP is a prominent severe plastic deformation technique in which a simultaneously rotating and traversing tool processes the material with a high strain rate.…”

Section: Introductionmentioning

confidence: 99%

Friction Stir Processing of Hybrid Al-Si Alloy Metal Matrix Composite

Sharma¹,

Dewang²,

Nagpal³

et al. 2021

Preprint

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Metal matrix composites are an important class of material that is developing rapidly to fulfil the diversified engineering requirements. The metal matrix composites are attractive owing to superior properties as compared to monolithic material. Their properties are dependent on various factors and fabrication techniques. The metal matrix composites are associated with several issues which hinder their full potential. In the present study friction stir processing is applied on the metal matrix composite as a post-processing operation. The friction stir processing offers many advantages owing to the solid-state nature of the processing. Stir cast metal matrix composites are prepared by using zircon sand particles of 50 µm in the matrix of LM13 aluminium alloy. The friction stir processing is applied on the metal matrix plates at a constant rotational speed and traverse speed of 1400 rpm and 63 mm/min, respectively. Multiple passes of friction stir processing are applied to elucidate the effect of the number of passes on microstructural modification. Microstructural examination showed a significant improvement in eutectic silicon morphology and distribution of zircon sand particles. A more than 5 times reduction as compared to the initial size was observed in the zircon sand particles after four passes of friction stir processing. The processed metal matrix composite also exhibits improvement in tensile strength and hardness.

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“…The FSP technique does not only refine the microstructural grain size but also modifies the texture of the processed zone [3,4]. FSP has been successfully used in many applications including the fabrication of surface composites of aluminium substrates [5,6], for superplastic high strain rate [7,8], metal matrix composites [9,10] and cast aluminium alloys [11,12]. FSP as an enticing emerging technology continues to grow, however, due to the high temperature the material experiences during FSP, grain growth was found to occur.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Multiple Pass Submerged Friction Stir Processing on the Microstructure and Mechanical Properties of the FSWed AA6082-AA8011 Joints

Mabuwa

Msomi

2020

Metals

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The AA6082–AA8011 friction stir-welded joints were subjected to submerged multiple pass friction stir processing to evaluate the microstructure and mechanical properties of the joints. A maximum of four submerged friction stir processed passes were used in this study. All the specimens were extracted from three different joint positions (start, middle and end). The tests conducted included microstructural analysis, tensile tests, hardness and fracture surface morphology of the post-tensile specimens, were performed using a scanning electron microscope (SEM). There was no particular trend in the microstructure and mechanical properties when looking at the specimen positioning in all the passes. The minimum mean grain sizes were refined from 3.54 to 1.49 µm and the standard deviation from 5.43 to 1.87 µm. The ultimate tensile strength was improved from 84.96 to 94.77 MPa. The four-pass SFSPed specimens were found to have more ductile properties compared to the one-pass SFSPed one. The hardness of the stir zones in all the passes was found to be higher compared to the AA8011 base material but lower than the AA6082 one. The maximum stir zone hardness of 75 HV was observed on the one-pass SFSP joints.

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Post-processing of metal matrix composites by friction stir processing

Cited by 7 publications

References 13 publications

Study on Friction and Wear Properties and Mechanism at Different Temperatures of Friction Stir Lap Welding Joint of SiCp/ZL101 and ZL101

Study on Friction and Wear Properties and Mechanism at Different Temperatures of Friction Stir Lap Welding Joint of SiCp/ZL101 and ZL101

Friction Stir Processing of Hybrid Al-Si Alloy Metal Matrix Composite

The Influence of Multiple Pass Submerged Friction Stir Processing on the Microstructure and Mechanical Properties of the FSWed AA6082-AA8011 Joints

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