Dry sliding wear behaviour of Al 7075/Al2O3/B4C composites using mathematical modelling and statistical analysis

Khare, Manu; Gupta, Ravi Kant; Bhardwaj, Bhuvnesh

doi:10.1088/2053-1591/ab546a

Cited by 23 publications

(12 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adequacy of the model was evaluated using the plots of residual and externally studentized residuals as shown in Figure 15. Majority of the predicted values were close to the straight line in Figure 15 (a) and (c) which indicates that the residual of the response is normally distributed [5,85]. Also, the plots of the residuals vs predicted values for both CS and shrinkage slope were within the two red lines depicted in Figure 15 (b) and (d).…”

Section: Diagnostic Plots and Optimization Of Input Factors And Responsessupporting

confidence: 61%

Ternary and quaternary blends as partial replacement of cement to produce hollow sandcrete blocks

Sojobi

Awolusi

Aina

et al. 2021

Heliyon

View full text Add to dashboard Cite

Hollow sandcrete blocks constitute more than 90% of residential building construction in developing countries especially in West Africa. Over-reliance on dredged river sands and conventional ordinary Portland cement (OPC) contributes to environmental degradation and post-construction problems such as swelling and shrinkage-induced cracks prevalent in construction projects. The study investigates potential utilization of locally available materials such as laterite, calcite and calcined clay as ternary and quaternary blends to replace cement and quarry dust as 100% replacement of river sand with the aid of Taguchi-Response surface methodology approach. Optimum ternary blend of 24% calcined clay +1% calcite +75% OPC is recommended to achieve volume stability, higher compressive strength and higher flexural load capacity. Alternatively, ternary blends of 24% calcite +4% calcined clay +72% OPC can also be utilized. The improved mechanical properties were attributed to the Na- and Ca-rich aluminosilicates provided by the blended cements. Successful utilization of ternary and quaternary blended cements to produce stronger, durable and eco-friendly sandcrete blocks depends on utilization of high binder-to-aggregate ratio, optimal combination of the constituents, appropriate water-cement ratio and curing/production method. Partial and 100% replacement of river sand with granite dust is possible and contributes to reduction of environmental problems caused by river dredging as well as cleaner, ecofriendly construction. Ternary and quaternary blended cements is recommended to avert post-construction problems such as swelling and shrinkage-induced cracks prevalent in construction projects.

show abstract

Section: Diagnostic Plots and Optimization Of Input Factors And Responsessupporting

confidence: 61%

Ternary and quaternary blends as partial replacement of cement to produce hollow sandcrete blocks

Sojobi

Awolusi

Aina

et al. 2021

Heliyon

View full text Add to dashboard Cite

show abstract

“…Moreover, the statistical analysis of aluminum hybrid composites was carried out by using RSM. 37 It was observed that the linear variables were seen to have significant contribution on the responses. With the increase in the reinforcement content, the wear rate was found to be reduced, showing the wear resistance of the aluminum composites was improved with the addition of the ceramic reinforcement.…”

Section: Comparative Analysis With Previous Literaturementioning

confidence: 99%

Multi-response modeling for sliding wear behavior of AA5052/TiC composites by stir casting: A comparative analysis using response surface methodology and fuzzy logic system

Samal

Vundavilli

Meher

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

The present research deals with the modeling of wear performance of AA5052 metal matrix composites (MMCs) reinforced by in-situ formed TiC particles using two methods, namely statistical-based non-linear regression and fuzzy logic system. A pin-on-disc apparatus is employed to obtain the wear data of the composites. Three different process parameters, namely weight percentage of TiC, sliding distance, and applied load are considered as the input variables, and the volumetric wear loss and coefficient of friction are taken as output variables of the wear process. Regression models are formulated to study the output responses based on the wear results. To check the significance and contribution of the various control parameters, analysis of variance method was performed. Further, confirmatory tests were also conducted to validate both the models. It has been observed that the sliding distance and applied load have shown a substantial effect on the volumetric wear loss. It is also observed that the coefficient of friction is found to be increased with the rise in the sliding distance. The novelty of the work lies in using fuzzy logic to establish the wear model for aluminum 5052 MMC. A comparative study is performed to analyze the prediction accuracy of the models for the wear characteristics of the aluminum composites. Consequently, this wear modeling investigation will give a better understanding the effect of parameters and the responses influence of wear phenomena of Al 5052/TiC composites, which further will help in developing wear components for industrial applications.

show abstract

“…Authors [31] defined response (3D) surface plots as exhibit of two variables interaction keeping the other parameters constant. Effect of the interaction between the factors on the flexural strength response is presented in Fig.…”

Section: Response Surface Plotmentioning

confidence: 99%

Optimization of Flexural Strength of Recycled Polyethylene-terephthalate (PET) Eco-Composite using Response Surface Methodology

et al. 2021

View full text Add to dashboard Cite

Recycling and reuse of plastic waste by blending with virgin polymer has been affirmed to be the best way of managing the waste. Equally, agro-waste are best recycled than being burnt off. In the development of stronger and cheaper ecoefficient recycled PET composite for food packaging, this study focused on reinforcement of the blend of 20 wt. % recycled PET (rPET) and 80 wt. % virgin PET (vPET) with snail shell particulate and kenaf fiber via compression moulding process. The process parameters are fiber dosage, particulate dosage, moulding pressure and temperature. Box-Behnken design was engaged in the design of experiment and the samples were produced according to the experimental runs. Result of analysis of variance pinpointed the process factors as significant contributors to the flexural strength response. The model developed was validated to be significant and statistically fit. Interactions between the process variables as revealed by the response surface plots indicated the response was dependent on the interactive pattern between the variables. Response surface optimization showed an optimum flexural strength of 57.16 MPa was attainable at process parameters of 27.27 wt. %, 4.18 wt. %, 3.95 MPa, and 160 ˚C for fiber proportion, particulate proportion, moulding pressure and temperature respectively yielding 34.2 % improvement over the reference 80/20-vPET/rPET matrix. Model validation experiment undergone with the combined parameters and deviation of +0.036 was noted. Since the deviation is insignificant, the model is concluded to be statistically fit for predicting the flexural strength of the developed eco-composite.

show abstract

Dry sliding wear behaviour of Al 7075/Al₂O₃/B₄C composites using mathematical modelling and statistical analysis

Cited by 23 publications

References 42 publications

Ternary and quaternary blends as partial replacement of cement to produce hollow sandcrete blocks

Ternary and quaternary blends as partial replacement of cement to produce hollow sandcrete blocks

Multi-response modeling for sliding wear behavior of AA5052/TiC composites by stir casting: A comparative analysis using response surface methodology and fuzzy logic system

Optimization of Flexural Strength of Recycled Polyethylene-terephthalate (PET) Eco-Composite using Response Surface Methodology

Contact Info

Product

Resources

About