Microstructure and Mechanical Behavior of Al 7075-T6 Subjected to Shallow Cryogenic Treatment

Mohan, K.; Suresh, J. A.; Ramu, Palaniappan; Jayaganthan, R.

doi:10.1007/s11665-016-2052-1

Cited by 44 publications

(16 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mohan et al examined the SCT impact on the microstructure and mechanical properties of Al7075-T6 [56]. Static mechanical properties such as hardness, yield strength, and ultimate tensile strength were improved.…”

Section: Effects Of Ct On Microstructure Variation and Hardnessmentioning

confidence: 99%

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

2019

View full text Add to dashboard Cite

Cryogenic treatment is a supplemental structural and mechanical properties refinement process to conventional heat treatment processes, quenching, and tempering. Cryogenic treatment encourages the improvement of material properties and durability by means of microstructural alteration comprising phase transfer, particle size, and distribution. These effects are almost permanent and irreversible; furthermore, cryogenic treatment is recognized as an eco-friendly, nontoxic, and nonexplosive process. In addition, to encourage the application of sustainable techniques in mechanical and manufacturing engineering and to improve productivity in current competitive markets, cryo-treatment can be considered as a promising process. However, while improvements in the properties of materials after cryogenic treatment are discussed by the majority of reported studies, the correlation between microstructural alteration and mechanical properties are unclear, and sometimes the conducted investigations are contradictory with each other. These contradictions provide different approaches to perform and combine cryogenic treatment with pre-and post-processing. The present literature survey, mainly focused on the last decade, is aimed to address the effects of cryogenic treatment on microstructural alteration and to correlate these changes with mechanical property variations as a consequence of cryo-processing. The conclusion of the current review discusses the development and outlines the trends for the future research in this field.

show abstract

Section: Effects Of Ct On Microstructure Variation and Hardnessmentioning

confidence: 99%

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

2019

View full text Add to dashboard Cite

show abstract

“…Al-7075 is an alloy of aluminum association, with zinc as the majority of alloying element in al-7075 alloy. It is very strong and tough in strength compared to remaining alloys and many steels and has good fatigue strength, average machinability, [7] high thermal and electrical conductivity, but has lesser resistance to corrosion [8] compared to the other Al alloys. It is utilized in the sporting goods, electronic packaging, armors, defense and automotive industries.…”

Section: Matrix Materialsmentioning

confidence: 99%

Effect of Alumina and Graphene on Mechanical and Tribological Behaviour of Al-7075 Hybrid Composite

Harish¹,

Siddiq²,

Srikanth³

et al. 2019

Applied Engineering Letters

View full text Add to dashboard Cite

In this paper the combined effect of alumina and graphene reinforced with aluminum matrix by using stir casting methodology, was evaluated. Hybrid metal matrix composites gives combined results effect of different reinforced aspects when combined with ductile matrix appearance. Both alumina and graphene we are varied by the weight proportions in order to 1%, 2% and 3% respectively. With increase in the weight percentage the mechanical properties like hardness were increased. Density was reduced. The detailed microstructure evaluation shows the mixing of reinforcement in the matrix. The tribological behaviour of hybrid composite was determined. The graphene agglomeration in the composite increased the hardness by 35% as compared to the base material. The composite reinforced with 3% alumina + 3% graphene recorded highest hardness. ARTICLE HISTORY

show abstract

“…Aluminium and its alloys are extensively used in many industrial applications mainly because of their light weight construction. Usually, the strength of aluminium alloys can be improved in many ways, comprising of, (i) adding insoluble reinforcement to form Metal Matrix composites [1,2] (ii) by precipitation hardening [3], (iii) by cryogenic treatments [4], (iv) by surface coatings etc. Among the above processes, metal matrix composites have gained much attention in enhancing the mechanical and tribological properties of aluminium.…”

Section: Introductionmentioning

confidence: 99%

“…Generally, a composite material consists of two or more insoluble phases, and their properties might be greater than that of its constituents. Because of its low density, easy fabricability and good engineering properties [4], aluminium is preferred to be as matrix material in most circumstances. Mostly, aluminium matrix composites are fabricated by (i) solid state processing (includes-powder metallurgy, diffusion bonding and physical vapour deposition) (ii) Liquid state processing (stir casting, pressurized die casting, infiltration process) (iii) in situ processing.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and tribological behaviours of aluminium hybrid composites reinforced by CDA-B₄C

Manikandan

2020

Mater. Res. Express

View full text Add to dashboard Cite

This study focuses on fabricating aluminium hybrid metal matrix composites reinforced with ecofriendly agro waste, cow dung ash and boron carbide by two stage stir casting. Weight percentage of cow dung ash and boron carbide were added in ratios of 2.5:7.5, 5:5, and 7.5:2.5. The effects on mechanical properties like hardness, tensile strength, impact strength, flexural strength and wear behaviour were studied. SEM and EDX analysis were employed to study the fracture mechanism for tensile, impact and wear specimens. Optical microstructure images reveal uniform distribution of particles and XRD analysis confirms the presence of reinforcements. Increasing CDA particles has reduced the density of the hybrid composite up to 8%. A maximum increase in hardness, tensile strength and wear resistance was up to 30%, 56% and 56% respectively, and then a slight decrease in impact was found in increasing the CDA particles. Dimples, transgranular cleavage facets, cracks and micro ploughing, micro cuttings are revealed from the fractured specimens of tensile, impact and wear respectively.

show abstract

Microstructure and Mechanical Behavior of Al 7075-T6 Subjected to Shallow Cryogenic Treatment

Cited by 44 publications

References 17 publications

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

Effect of Alumina and Graphene on Mechanical and Tribological Behaviour of Al-7075 Hybrid Composite

Mechanical and tribological behaviours of aluminium hybrid composites reinforced by CDA-B₄C

Contact Info

Product

Resources

About

Microstructure and Mechanical Behavior of Al 7075-T6 Subjected to Shallow Cryogenic Treatment

Cited by 44 publications

References 17 publications

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability after Cryogenic Treatment: A Review

Effect of Alumina and Graphene on Mechanical and Tribological Behaviour of Al-7075 Hybrid Composite

Mechanical and tribological behaviours of aluminium hybrid composites reinforced by CDA-B4C

Contact Info

Product

Resources

About

Mechanical and tribological behaviours of aluminium hybrid composites reinforced by CDA-B₄C