Friction Stir Processing for Enhancement of Wear Resistance of ZM21 Magnesium Alloy

Reddy, G. Madhusudhan; Rao, A. Sambasiva; Rao, K. Srinivasa

doi:10.1007/s12666-012-0163-4

Cited by 79 publications

(16 citation statements)

References 18 publications

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“…In addition, the presence of scratches on the base metal surface showed some evidence of abrasive wear. For the base metal, a range of adhesive and abrasive wear was observed which was in conjunction with earlier studies (Azizieh et al, 2018;Madhusudhan Reddy et al, 2013). However, deep grooves indicate severe adhesive wear and its domination, consequently the debris formed and massive surface damage on pin surface was found.…”

Section: Wear Morphologysupporting

confidence: 86%

Prediction of wear resistance model for magnesium metal composite by response surface methodology using central composite design

Sagar

Handa

2020

WJE

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Purpose In recent days, friction stir processing (FSP) has emerged as a pioneering approach for the manufacture of composites with enhanced mechanical and tribological properties. The present study aims to examine the impact of process parameters such as tool rotation speed and number of FSP pass on the AZ61A/TiC magnesium metal composite for responses such as hardness and wear resistance. Design/methodology/approach To minimize number of experimental runs, design of experiment was configured according to the response surface methodology using central composite design. Analysis of variance has been conducted to develop mathematical and empirical model for studying relationship between tool rotation and number of pass for responses such as microhardness and wear resistance. Microhardness was checked on vickers microhardness testing machine, and tribological behavior were examined on pin-on-disc using tribotester. Wear morphology was analyzed via scanning electron microscopy. Findings The responses were predicted using validated mathematical model, and contour plots were generated to study the interaction and influence of process parameters. Wear observations suggest that for the base magnesium alloy adhesive wear mechanism was dominating and for the developed nanocomposites, abrasive wear mechanism is a prominent factor. It was also observed that both the selected parameters significantly influenced the responses. Originality/value To the best of the authors’ knowledge, no prior work has been conducted with this material and preparation of composites with TiC nanoparticles. Furthermore, no mathematical models have been developed to predict the response values.

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Section: Wear Morphologysupporting

confidence: 86%

Prediction of wear resistance model for magnesium metal composite by response surface methodology using central composite design

Sagar

Handa

2020

WJE

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“…Additionally, FSP also leads to develop texture in Mg alloys [34,35]. Therefore, the measured hardness values of the composite are the result of the combined effect from the grain refinement, dissolution of intermetallic phase, and distribution of reinforcement (B 4 C) particles in the matrix [27]. , friction coefficient was observed as decreased for the composite sample as compared with BM sample which can be attributed to the hard surface and reduced adhesive contact because of higher sliding velocity ( figure 12(d)) [36].…”

Section: Resultsmentioning

confidence: 99%

“…SiC and Al 2 O 3 are the most commonly used reinforcement particles to fabricate AZ91Mg alloy based surface composites using FSP. B 4 C particles possess lower density, higher hardness, good thermal and chemical stability comparable to SiC and Al 2 O 3 [27,28]. Nanaksharan et al reported the preliminary wear characteristics of B 4 C reinforced AZ91 matrix composite fabricated by FSP [29].…”

Section: Introductionmentioning

confidence: 99%

Sliding wear behavior of AZ91/B₄C surface composites produced by friction stir processing

Patle

Sunil²,

Dumpala

2020

Mater. Res. Express

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In the present study, the surface of AZ91 Mg alloy was modified by incorporating boron carbide (B 4 C) particles using friction stir processing (FSP). Sliding wear behavior of these developed AZ91/B 4 C surface composites was investigated against AISI 52100 steel ball using linear reciprocating tribometer. Hardness tests reveal that the hardness of the fabricated surface composite (∼137.47 HV) is significantly increased compared to the base metal (∼95.5 HV) due to the presence of B 4 C particles.Wear tests were conducted on the samples at two different sliding velocities; 0.06 m s −1 and 0.12 m s −1 . It was observed that at higher sliding velocity of 0.12 m s −1 , AZ91/B 4 C surface composite exhibited lower friction coefficient value in comparison to that of the base metal, whereas it is vice versa at the low sliding velocity of 0.06 m s −1 . However, surface composites exhibited superior wear resistance at both the sliding velocities, in comparison to that of the base metal. Scanning electron microscopy and energy-dispersive spectroscopy analysis of the wear tracks were carried out to understand the wear mechanisms. From the observations, a combination of abrasive, adhesive, and oxidative wear mechanisms were found to be prominent.

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“…Subsequently, the tool with a pin is used in the multi-pass FSP process along with pre-manufactured grooves; thus, the reinforced particles are uniformly distributed with material flow [17,21,31,[34][35][36][37][38][39][40]. In addition, the surface composites with a homogeneous distribution of strengthening phases were also obtained by adding reinforced particles after drilling blind holes on the surface of the workpieces [39,47,48] (Figure 4b).…”

Section: Methods Of Adding Reinforced Particlesmentioning

confidence: 99%

“…This effectively avoids burning of the strengthening phase and the formation of harmful phases. There are many kinds of reinforced particles commonly added to the FSP process including SiC [13,43], B 4 C [39,47,48], GNPs [30], CNTs [37], and Al 2 O 3 [45], etc., shown in Table 2.…”

Section: Preparation Of Superplastic Materialsmentioning

confidence: 99%

Research Status and Prospect of Friction Stir Processing Technology

Liu

Zhao

2019

Coatings

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Friction stir processing (FSP) is a novel solid-phase processing technique that is derived from friction stir welding (FSW). The microstructure of the base metal can be modified with the friction heat and stir function during processing. It can be used to fabricate surface composites and in situ composites by adding reinforced particles into the metal matrix via FSP. Friction stir processing can significantly improve the hardness, wear resistance, ductility, etc., while preventing defects caused by material melting. It is an ideal material processing technology and has good prospects in the field of superplastic materials and for the preparation of metal matrix composites. This paper reviews research developments into the principle, process, and applications of FSP technology as well as its future research directions and development prospects.

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Friction Stir Processing for Enhancement of Wear Resistance of ZM21 Magnesium Alloy

Cited by 79 publications

References 18 publications

Prediction of wear resistance model for magnesium metal composite by response surface methodology using central composite design

Prediction of wear resistance model for magnesium metal composite by response surface methodology using central composite design

Sliding wear behavior of AZ91/B₄C surface composites produced by friction stir processing

Research Status and Prospect of Friction Stir Processing Technology

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Friction Stir Processing for Enhancement of Wear Resistance of ZM21 Magnesium Alloy

Cited by 79 publications

References 18 publications

Prediction of wear resistance model for magnesium metal composite by response surface methodology using central composite design

Prediction of wear resistance model for magnesium metal composite by response surface methodology using central composite design

Sliding wear behavior of AZ91/B4C surface composites produced by friction stir processing

Research Status and Prospect of Friction Stir Processing Technology

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Sliding wear behavior of AZ91/B₄C surface composites produced by friction stir processing