Tensile behaviour and fractography analyses of LM6/ZrO2 composites

Govindan, K.; Jinu, G. R.

doi:10.17222/mit.2015.319

Cited by 6 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among these methods Stir casting technique is used to produce the composites in economical way, high production rate at the very simple manner. It also increases the uniform distribution of particles and reduces the defects such as porosity, weak bonding between matrix and reinforcement [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical Properties and Metallurgical Characterization of LM25/ZrO2 Composites Fabricated by Stir Casting Method

Govindan¹,

Raghuvaran²

2019

Matéria (Rio J.)

View full text Add to dashboard Cite

Zirconia (ZrO 2) dispersed aluminum alloy metal matrix composites produced by stir casting techniques. Using stir casting techniques, aluminium based composites with varying amounts of 3%, 6%, 9%, and 12% of zirconia by weight are fabricated. The prepared samples were subjected to physical, mechanical,tribiology and microstructure investigation. The extraordinary performance of Aluminium MMCs was the low density that obtained after alloying. Hardness and ductility were also increased when increase in Zirconia particle. Ultimate tensile strength, compressive strength and impact toughness were slightly increasing with the addition of zirconia particle. Microstructural characteristics shows that a homogeneous distribution of particles with reinforcement in casted composite. The investigations of the metallurgical characterization were carried using optical, scanning electron microscope, X-ray diffraction and Energy Dispersive Spectrometry (EDS) test to understand the metallurgical properties.

show abstract

Section: Introductionmentioning

confidence: 99%

“…The reinforcement of ZrO 2 is very attractive as it exhibits a density of 8.18 gm/cm 3 , melting point 1860˚C, UTS-425 MPa, VHN-150, Young's modulus of 98 GPa. It was also found that ZrO 2 shows better strength, hardness and fracture toughness with slight reduction in ductility [18,[20][21].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Metallurgical Characterization of LM25/ZrO2 Composites Fabricated by Stir Casting Method

Govindan¹,

Raghuvaran²

2019

Matéria (Rio J.)

View full text Add to dashboard Cite

show abstract

“…% ZrO2 and SiC+ZrO2 for 6066 AA 58.49% and 92.07% respectively compared to as resave. Karthikeyan et.al [26] they tested the tensile strength of the five LM6 samples with 0%, 3%, 6%, 9%, and 12%, of ZrO2 respectively, and it was evident in their results that the final ultimate tensile stress was obtained for specimen No. 5, which contains about 12.0 % of ZrO2 nano material.…”

Section: Specimen Geometrymentioning

confidence: 99%

A comparative study using silicon carbide and zirconium dioxide nano material’s to improve the mechanical properties of 6261AA

Jaafari¹

2022

PEN

View full text Add to dashboard Cite

The applications of nanotechnology differ in different areas of life. Despite all the advantages of nanomaterials, there are many difficulties that need further research the most important of which is obtaining cheap, practical materials with appropriate specifications for use in various applications. This study examines the addition of multiple proportions of two materials (Silicon Carbide and Zirconia) to 6261 Aluminum alloy. Results were obtained stating that using the two nano-materials together is better than using each one separately. The best ultimate tensile strength (UTS)waders were obtained at (1.5-2.0 wt%) ratios ranging. 1.5% wt. of ZrO2 and (%SiC+% ZrO2). The improvements were (75.1 %) and (92 %) respectively. The UTS improvements (84.3%) for Al/ 2.0wt. %SiC. Also, a significant improvement was seen in the hardness values for all the weight ratios of the nano-additives with respect to the base alloy. The percentage of ductility has decreased after adding nano-materials.

show abstract

“…The failure modes are the first step to identify the type of failure, and fractographic study can be used to establish the failure modes and failure analysis 13 . Features of the nanocomposite failure distinguishes the fracture surface, these features provide vital information that determines the location and source of failure, conditions of stress at the crack initiation time and propagation, and final failure 13,14 . In this work, the fractographic features will characterize tensile…”

Section: Introductionmentioning

confidence: 99%

Fractographic Analysis of Tensile Failures of Zirconia Epoxy Nanocomposites

Muhannad

Alduwaib

2022

Baghdad Sci.J

View full text Add to dashboard Cite

This work characterizes the fractographic features of the neat epoxy and ZrO2 epoxy nanocomposites. All samples were subjected to a tensile test to determine the tensile strength and tensile modulus. SEM images were used to study the morphology of the fractured surface. The fractographic of the fracture surfaces were studied by microstructure analysis program (j-images) to specify the effect of ZrO2 nanoparticles on tensile performance and failure mechanism for ZrO2 epoxy nanocomposites. The tensile test results show that the addition of ZrO2 nanoparticles (2, 4, 6, 8, and 10 vol.%) to the epoxy matrix leads to increase the tensile strength about 40% for optimal content of ZrO2 nanoparticles at 4 vol.%, tensile modules of ZrO2 epoxy nanocomposites increased about 200% for optimal content of ZrO2 nanoparticles at 4 vol.%. SEM images show that the patterns of fractured surfaces of ZrO2 epoxy nanocomposites are different from the pattern of the neat epoxy. The fracture roughness of ZrO2 epoxy nanocomposites increased with the increases of the percentages of ZrO2 nanoparticles, where the increment of fracture roughness about 30% for optimal content of ZrO2 nanoparticles at 4 vol.% can be indicator for the improvement of mechanical properties (tensile strength and modules).

show abstract

Tensile behaviour and fractography analyses of LM6/ZrO2 composites

Cited by 6 publications

References 6 publications

Mechanical Properties and Metallurgical Characterization of LM25/ZrO2 Composites Fabricated by Stir Casting Method

Mechanical Properties and Metallurgical Characterization of LM25/ZrO2 Composites Fabricated by Stir Casting Method

A comparative study using silicon carbide and zirconium dioxide nano material’s to improve the mechanical properties of 6261AA

Fractographic Analysis of Tensile Failures of Zirconia Epoxy Nanocomposites

Contact Info

Product

Resources

About