Influence of precipitation hardening parameters on the fatigue strength of AA 6061-SiCp composite

Mahadevan, K.; Raghukandan, K.; Pai, B.C.; Pillai, U.T.S.

doi:10.1016/j.jmatprotec.2007.06.075

Cited by 26 publications

(13 citation statements)

References 24 publications

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“…4 and Table 5. Whereas ageing at higher temperatures leaded to softening and the ductility also decreased with the increase in aging time and temperature [10]. …”

Section: Tensile Propertiesmentioning

confidence: 99%

Heat treatment optimization for tensile properties of 8011 Al/15% SiCp metal matrix composite using response surface methodology

Vembu

Ganesan

2015

Defence Technology

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In this study, a mathematical model was developed to optimize the heat treatment process for maximum tensile strength and ductility of aluminum (8011) silicon carbide particulate composites. The process parameters are solutionizing time, aging temperature, and aging time. The experiments were performed on an universal testing machine according to centre rotatable design matrix. A mathematical model was developed with the main and interactive effects of the parameters considered. The analysis of variance technique was used to check the adequacy of the developed model. The optimum parameters were obtained for maximum tensile strength. Fractographic examination shows the cracks and dimples on the fractured surfaces of heat-treated specimen.

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“…4 and Table 5. Whereas ageing at higher temperatures leaded to softening and the ductility also decreased with the increase in aging time and temperature [10]. …”

Section: Tensile Propertiesmentioning

confidence: 99%

Heat treatment optimization for tensile properties of 8011 Al/15% SiCp metal matrix composite using response surface methodology

Vembu

Ganesan

2015

Defence Technology

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“…The results concluded that boron carbide has increased the fracture toughness and hardness of the alloy. Madhavan et al [10] investigated AA 6061-SiC composites and performed fatigue tests on composites considering different aging temperature and solutionizing time. Narayana Murty et al [11], studied 6061Al-SiC and 6061-Al2O3 reinforced composites on the hot working characteristics for the development of processing maps .To determine the amount of plastic deformation Ziegler's continuum principles is used by deriving a simple instability condition in a work piece.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical Properties of AA7075 /Al2O3/Mg Hybrid Composites

Khare¹,

Gupta²,

Goyal³

2019

IJEAT

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The present work was planned to evaluate the mechanical properties of alumina reinforced aluminium alloy such hardness and compression behavior of al2o3 /aa7075 alloy metal matrix composites. Both, experimental and finite element analyses were carried out to establish tensile behaviour of the composites with different weight percentage of al2o3 fabricated by the stir casting process. The results concluded that addition of alumina to the aa7075 improves the mechanical properties of the composite. Further the results of FEA simulation of the composites are close to the actual results which shows that cost and time can be reduced if FEA is performed

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“…The factors like Volume Percentage, particle size and method of synthesis will influence the hardness of the prepared MMC [10]. The Artificial age hardening process consists of solutionizing, quenching and ageing at elevated temperature (artificial ageing) will affect the heat treatment process of the aluminium alloys [11].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Age Hardening Behaviour of AA2024 Hybrid Composite Reinforced with Red Mud and Fly Ash through RSM

karuna*¹,

Babu²

2019

IJEAT

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Hybrid AA2024 Metal Matrix composite find explicit application, so important factors like Hardness, lightweight is considered and hybrid composite was synthesized by stir casting route. In this investigation, the effects of age hardening on Hardness of AA2024 reinforced with industrial wastes is measured by using a Vickers hardness test and the influence of different process parameters are studied using Design Expert. A Response Surface Methodology is an effective technique used to observe the impact of age hardening parameters and their interconnection on surface hardness of the prepared hybrid AA2024 composite. A mathematical model was created to optimize the weight percentage of reinforcement and artificial ageing process parameters for maximum Hardness. Adequacy and lack of fit of the developed model were checked using the Analysis of variance Technique. Hardness is taken as the response and optimum parameters are obtained by using the quadratic model. Based on the results, it can be perceived that the weight percentage of Red mud, ageing temperature and ageing time has shown a notable effect on the response. For a specifically optimized parameter, the hardness is improved and it was observed that ageing temperature is the most influencing factor based on the RSM. The optimized parameters for the desired response are Ageing Temperature is 198.87ᵒC, Ageing time is 6.82884 hours, and Red mud wt % is 4.2865 respectively. A confirmation test is carried out with the optimized parameters experimentally and its error is less than the 5 % which shows good results with RSM. Surface morphological studies are carried for the optimized Age Hardened hybrid composite and it showed the uniform distribution of reinforcements in the matrix. Because of the increased hardness, these hybrid composite would perceive real time applications like Orthopaedic braces, aircraft structures and manufacturing crew machine products.

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Influence of precipitation hardening parameters on the fatigue strength of AA 6061-SiCp composite

Cited by 26 publications

References 24 publications

Heat treatment optimization for tensile properties of 8011 Al/15% SiCp metal matrix composite using response surface methodology

Heat treatment optimization for tensile properties of 8011 Al/15% SiCp metal matrix composite using response surface methodology

Evaluation of Mechanical Properties of AA7075 /Al2O3/Mg Hybrid Composites

Optimization of Age Hardening Behaviour of AA2024 Hybrid Composite Reinforced with Red Mud and Fly Ash through RSM

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