Investigation into Mechanical Properties and Sliding Wear Behavior of Friction Stir Processed Surface Composite Material

One of the different and pioneering solid-state techniques, friction stir processing (FSP), is employed for the production of surface composites. In this research, the matrix selected was copper-nickel (CuNi) with hard boron carbide particle as reinforcement. The objective of the current research work is to produce reinforced 90/10 copper-nickel surface composites reinforced with B4C fabricated via FSP. The influence of tool rotational speed on macrostructure, microstructure, grain size analysis, microhardness, and wear studies of friction stir processed (FSPed) CuNi/B4C surface composites was assessed. For high rotational speed (1400 rpm) of stir tool, the modified surface area found is a maximum of 44.4 mm2 with uniform dispersion of hard particle reinforcement. The presence of hard particle in the surface area is revealed through the electron imaging and the spectroscopic results. Spectra mapping shows the uniform distribution of hard particle over the FSPed area, and the evidence is obtained with XRD analysis. From the experimentation, it is interesting to report that the reinforcements have decreased the surface hardness for an increased rotational speed of stir tool. The hardness recorded for minimum rotational speed is 223 HV which has gradually decreased to 178 HV for 1300 rpm. It has directly influenced the wear rate of modified FSPed, as hardness is directly proportional to wear behavior. The worn surface and fractured morphology of the CuNi/B4C surface composites were also studied using Field Emission Scanning Electron Microscope (FESEM).

Download Full-text

Experimental Evaluation of Wear Features of W-25%Re Pin Tool Used in Friction Stir Welding Mild Steel

Volume 2B: Advanced Manufacturing ◽

10.1115/imece2014-38916 ◽

2014 ◽

Author(s):

Zafar Iqbal ◽

Abdel Rahman Shuaib ◽

Fadi Al-Badour ◽

Nesar Merah ◽

Abdelaziz Bazoune

Keyword(s):

Friction Stir Welding ◽

Mild Steel ◽

Rotational Speed ◽

Steel Plate ◽

Wear Behavior ◽

Process Conditions ◽

High Rotational Speed ◽

Butt Welding ◽

Friction Stir

This paper presents the results of studying butt welding of 4 mm thick mild steel plate with a W-25% Re pin tool using the relatively new friction stir welding (FSW) process. The study includes investigating the wear behavior of the pin tool and the effects of process conditions such as rotational speed on the quality of the weld, microstructures and hardness of mild steel. The results reveal that the traverse (welding) force increases with the increase in the traveled distance of the pin tool, whereas torque decreases with the increase in the travelled distance of the pin tool. The tool has shown wear resistance at lower rotational speed, but with the increase of the rotational speed, wear of the tool became prominent. All welded samples revealed grain size refining. Furthermore, at high rotational speed martensitic structure phase developed due to phase transformation. Different distinct regions of stir zones, thermomechanical heat affected zones and heat affected zones were present in the weld.

Download Full-text

Microstructure and sliding wear behavior of fly ash reinforced dual phase brass surface composites synthesized through friction stir processing

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2021.124430 ◽

2021 ◽

Vol 263 ◽

pp. 124430

Author(s):

I. Dinaharan ◽

S. Karpagarajan ◽

R. Palanivel ◽

J. David Raja Selvam

Keyword(s):

Fly Ash ◽

Friction Stir Processing ◽

Sliding Wear ◽

Wear Behavior ◽

Dual Phase ◽

Friction Stir ◽

Surface Composites ◽

Brass Surface

Download Full-text

Evaluating the Microstructure Evolution and Wear Behavior of Friction stir processed Aluminum Matrix Surface Composites with nano-sized SiC particles

Surface Topography Metrology and Properties ◽

10.1088/2051-672x/abea08 ◽

2021 ◽

Author(s):

Xiaofeng Yu ◽

Hua Wu ◽

Wenbiao Gong

Keyword(s):

Microstructure Evolution ◽

Wear Behavior ◽

Aluminum Matrix ◽

Friction Stir ◽

Surface Composites ◽

Sic Particles ◽

Matrix Surface

Download Full-text

Effect of Tool Rotational Speed on Microstructure and Microhardness of AA6082/TiC Surface Composites using Friction Stir Processing

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.592-594.234 ◽

2014 ◽

Vol 592-594 ◽

pp. 234-239 ◽

Cited By ~ 3

Author(s):

A. Thangarasu ◽

N. Murugan ◽

I. Dinaharan ◽

S.J. Vijay

Keyword(s):

Friction Stir Processing ◽

Rotational Speed ◽

Traverse Speed ◽

Tool Rotational Speed ◽

Friction Stir ◽

Surface Composite ◽

Surface Composites ◽

Homogenous Distribution ◽

Tool Pin ◽

Scanning Electron

Friction stir processing (FSP) is as a novel modifying technique to synthesize surface composites. An attempt has been made to synthesis AA6082/TiC surface composite using FSP and to analyze the effect of tool rotational speed on microstructure and microhardness of the same. The tool rotational speed was varied from 800 rpm to 1600 rpm in steps of 400 rpm. The traverse speed, axial force, groove width and tool pin profile were kept constant. Scanning electron microscopy was employed to study the microstructure of the fabricated surface composites. The results indicated that the tool rotational speed significantly influenced the area of the surface composite and distribution of TiC particles. Higher rotational speed provided homogenous distribution of TiC particles while lower rotational speed caused poor distribution of TiC particles in the surface composite. The effect of the tool rotational speed on microhardness is also reported in this paper.

Download Full-text