Abrasive wear behavior of in-situ RZ5-10wt%TiC composite

Mehra, Deepak; Mahapatra, Manas Mohan; Harsha, S. P.

doi:10.1063/1.5032358

Cited by 1 publication

(5 citation statements)

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“…Thus, result in improvement of wear resistance because of the improvement of the hardness. The hardness of the composite is improved from 75 to 105 VHN (Mehra et al , 2018a, 2018b, 2018c, 2018d, 2018e). The influence of the Wt.% of TiC and sliding distance for weight loss are relatively high as compared to applied load as shown in Table II.…”

Section: Resultsmentioning

confidence: 99%

“…This mechanism is similar to the general machining. As the material is separated from the RZ5-TiC composite by cutting force may weaken the grain boundaries and result in fracture of the particles that is pull out of the grains (Mehra et al , 2018a, 2018b, 2018c, 2018d, 2018e).…”

Section: Resultsmentioning

confidence: 99%

“…It has also been found that the severity of plowing substantially less pronounced on the worn surface of composites as shown in Figures 7(b), 7(c) and 7(d). It is attributed to the high hardness of the composites because of the relatively high amount of TiC reinforcement (Mehra et al , 2018a, 2018b, 2018c, 2018d, 2018e). It may decrease the real area of contact ensuring less penetration by the abrasive grit, consequently, improved the wear resistance of the composite (Singla et al , 2009).…”

Section: Resultsmentioning

confidence: 99%

“…It is also observed that the formation of grooves and cracks on the abraded surfaces decreased when the Wt.% of TiC particle increased. It contributed to the superior hardness of the composites with a comparatively higher amount of TiC, which reduced the real area of contact resulting in less penetration by the abrasive great, and consequently, less groove formation (Mehra et al , 2018a, 2018b, 2018c, 2018d, 2018e).…”

Section: Resultsmentioning

confidence: 99%

“…Finally, the melt is casted. Figure 1 shows the scanning electron microscope (SEM) microstructure of pin profile before wear test of RZ5 Mg matrix alloy and its composites (Mehra et al , 2018a, 2018b, 2018c, 2018d, 2018e).…”

Section: Methodsmentioning

confidence: 99%

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Abrasive wear analysis of RZ5/TiC in-situ composites: a statistical approach

Mehra

Mahapatra

Harsha

2019

ILT

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Purpose The RZ5 mg alloy is used in automotive and aerospace applications including helicopter gearboxes and aircraft components. These components are prone to the wear as per the demands. The present work is the study of the significance of hard particle/ceramic, i.e. titanium carbide (TiC) in RZ5 mg alloy to protect the machine components from wear. Design/methodology/approach The abrasive wear analysis of in-situ RZ5-TiC magnesium matrix composite is considered for the study. The primary focus of the present work is to analyze the effects of varying control parameters, i.e. Wt.% of TiC, sliding distance and applied load on the responses, i.e. weight loss and coefficient of friction. Full factorial design of the experiment based on statistical analysis is used. Findings It is observed that the individually Wt.% of TiC and sliding distance show the comparatively significant effect on both responses. Similarly, the interaction between sliding distance and Wt.% of TiC indicated the considerable impact on weight loss. The regression equations are developed and validated for estimating responses. It is observed that the percentage errors are not appearing more than 10 per cent of responses. Therefore, the close agreement between measured and predicted values shows the adequacy of the model. The control factor is optimized using multi-response optimization. The variations of the order of 2.47 and 2.35 per cent in target value of the coefficient of friction and weight loss are achieved. Originality/value The current manuscript provides a detailed abrasive wear statistical analysis of RZ5-TiC composite. The influence of control parameters on the responses using the full factorial design, the main effect plots and interaction effects are presented.

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