Microstructure and Mechanical Properties of an In Situ Al 356-Mg2Si-TiB2 Hybrid Composite Prepared by Stir and Cooling Slope Casting

Yadav, Amit Kumar; Kumar, Vaibhav; Ankit, .; Mohan, S.

doi:10.1007/s40962-022-00804-x

Cited by 20 publications

(3 citation statements)

References 41 publications

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“…In situ composites offer advantages such as uniform distribution of reinforcement particles, finer grain, clearer interface, improved thermal stability, and costeffective processing. [12][13][14][15][16] Several studies have been conducted on the wear behavior of Al-Mg 2 Si composites, with a focus on factors such as load, sliding speed and distance, temperature, fabrication process, and wear disc material. [17,18] Most of these studies have concentrated on room-temperature dry sliding wear analysis, evaluating the effect of modified or unmodified Al-Mg 2 Si composites fabricated through various processing.…”

Section: Introductionmentioning

confidence: 99%

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Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg₂Si Composites

Bhandari,

Biswas,

Mallik

et al. 2023

Adv Eng Mater

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This study investigates the wear characteristics of Al–25Mg2Si composite synthesized via gravity casting. The research aims to understand the influence of applied load, test temperature, contact condition (dry and lubrication), and sliding distance on wear characteristics. Results show that higher loads and temperatures lead to increased wear loss and coefficient of friction. The worn surface morphology for higher loads and temperature shows deeper scratches and grooves, indicating severity in wear. The debris size and volume increase with an increase in load and temperature. The dominant mechanism is abrasive, adhesive, and oxidative for both the room‐ and high‐temperature dry sliding conditions. However adhesive and oxidative wear increase with the increase in test temperature. Abrasive wear is the only wear mechanism present during the lubricating sliding condition. Wear transition is noticed during the wear map analysis subjected to load, temperature, and sliding distance. In the case of room‐temperature test, severe–moderate–mild wear transition occurs with the increase in sliding distance and mild–moderate–severe wear transition occurs with the increase in test temperature and applied load. The roughness of the worn surface increases with an increase in applied load and temperature and the use of lubricant hugely reduces the surface roughness.

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Section: Introductionmentioning

confidence: 99%

“…In situ composites offer advantages such as uniform distribution of reinforcement particles, finer grain, clearer interface, improved thermal stability, and cost‐effective processing. [ 12–16 ]…”

Section: Introductionmentioning

confidence: 99%

Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg₂Si Composites

Bhandari,

Biswas,

Mallik

et al. 2023

Adv Eng Mater

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“…This insitu formed Mg 2 Si phase has excellent reinforcement features such as low density, high thermal properties including melting point, outstanding mechanical properties, and low thermal coefficient. The insitu Mg 2 Si phase consists of a coarse primary phase with a sharp edge polygon shape and a Chinese script type of pseudo-eutectic Mg 2 Si phase [5]. Thus, it is required to modify the grain size and phase morphology of Mg 2 Si phase to improve mechanical and wear properties of the composite.…”

Section: Introductionmentioning

confidence: 99%

Prediction of tribology in (Mg₂Si+TiB₂)/A356 composites based on RSM method and correlative with topographical characteristics

Yadav,

Gautam,

Mohan

2023

Phys. Scr.

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This work deals with the prediction of tribological performance in (Mg2Si-TiB2)/A356 composites. In this work tribological properties are also correlated with topographical characteristics. The effect of several input factors such as load, sliding distance and TiB2 wt.% on tribological characteristics of (Mg2Si+TiB2)/A356 composites was explored by Response Surface Methodology (RSM). Central composite design (CCD) with three input factors and three level of variables in RSM was used to develop a statistical model. RSM suggests quadratic model to express a mathematical relationship between input factors to assess wear rate and coefficient of friction (COF). Analysis of variance (ANOVA) was applied to investigate the influence of input factors on wear rate and COF and found that most significant variable which influence wear rate and COF is applied load followed by TiB2 wt.% and sliding distance. The desirability function approach is applied to optimized input variables to minimize wear rate and COF. Optimum wear rate is noticed at input variables of 26 N load, 2766 m sliding distance and 3.36wt.% of TiB2 and optimum COF was observed at 29 N of load, 2233 m sliding distance and 1wt.% of TiB2. A confirmatory test was conducted to validate the developed model and observed that experimental results matched the predicted value with error less than 5 %. SEM and AFM examined surface topography of wear surfaces to understand the wear mechanism and surface features at various input factors. Microstructural features were also examined under optical microscope and SEM, revealing that increased TiB2 content in hybrid composite refine primary Mg2Si and eutectic Mg2Si phase and results in increased hardness and improved tribological behaviour of hybrid composite.

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Investigation of microstructural and mechanical characteristics of Al-ZrO2 composites fabricated by stir casting

Maurya,

Kumar,

Gautam

et al. 2024

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Microstructure and Mechanical Properties of an In Situ Al 356-Mg2Si-TiB2 Hybrid Composite Prepared by Stir and Cooling Slope Casting

Cited by 20 publications

References 41 publications

Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg₂Si Composites

Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg₂Si Composites

Prediction of tribology in (Mg₂Si+TiB₂)/A356 composites based on RSM method and correlative with topographical characteristics

Investigation of microstructural and mechanical characteristics of Al-ZrO2 composites fabricated by stir casting

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Microstructure and Mechanical Properties of an In Situ Al 356-Mg2Si-TiB2 Hybrid Composite Prepared by Stir and Cooling Slope Casting

Cited by 20 publications

References 41 publications

Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg2Si Composites

Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg2Si Composites

Prediction of tribology in (Mg2Si+TiB2)/A356 composites based on RSM method and correlative with topographical characteristics

Investigation of microstructural and mechanical characteristics of Al-ZrO2 composites fabricated by stir casting

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Product

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Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg₂Si Composites

Dry and Lubrication Sliding Wear Characteristics and Wear Mechanism Mapping for In Situ Al–25Mg₂Si Composites

Prediction of tribology in (Mg₂Si+TiB₂)/A356 composites based on RSM method and correlative with topographical characteristics