Journal ArticleDOI
Improvement of microstructural, mechanical and tribological characteristics of A413 cast Al alloys using friction stir processing
Tamer S. Mahmoud,S.S. Mohamed +1 more
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In this paper, the effect of the friction stir processing (FSP) on the microstructural, mechanical and tribological characteristics of as-cast A413 aluminum alloy was studied and the influence of the tool rotational and traverse speeds on such characteristics was evaluated.Abstract:
In the present investigation, the effect of the friction stir processing (FSP) on the microstructural, mechanical and tribological characteristics of as-cast A413 aluminum alloy was studied. The influence of the tool rotational and traverse speeds on such characteristics was evaluated. The results revealed that FSP has significantly improved the microstructure of the A413 Al alloy by eliminating structural defects such as porosity and Si segregation. The size of the Si particulates as well as the α-Al grains increases with increasing tool rotational speed and/or decreasing the tool traverse speed. The FSPed zones exhibited better mechanical properties as well as dry sliding wear resistance than the as-cast base alloy.read more
Citations
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Recent Development in Friction Stir Processing as a Solid-State Grain Refinement Technique: Microstructural Evolution and Property Enhancement
TL;DR: In this article, the authors discuss the increasing demand of lightweight structures with exceptional properties elicits materials processing and manufacturing technologies to tailor blanks in order to achieve or enhance those properties.
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Friction Stir Processing as a Novel Technique to Achieve Superplasticity in Aluminum Alloys: Process Variables, Variants, and Applications
TL;DR: In this article, an overview of the potential for superplasticity of aluminum alloys using friction stir processing (FSP) is provided, which is a variant of friction stir welding (FSW), and FSP is an effective technique to alter the metallurgical and mechanical properties of the material.
Journal ArticleDOI
Surface modification of A390 hypereutectic Al–Si cast alloys using friction stir processing
TL;DR: In this paper, the effect of the tool rotational and traverse speeds as well as the number of passes on the microstructural, mechanical and tribological characteristics of the modified surfaces was investigated.
Journal ArticleDOI
Effect of two-pass friction stir processing on the microstructure and mechanical properties of as-cast binary Al–12Si alloy
TL;DR: In this article, the effect of two-pass friction stir processing (FSP) on the microstructural evolution, mechanical properties and impact toughness of as-cast Al-12Si alloy was investigated systematically.
Journal ArticleDOI
Hybrid multi-objective optimization of microstructural and mechanical properties of B4C/A356 composites fabricated by FSP using TOPSIS and modified NSGA-II
TL;DR: In this article, the microstructural and mechanical properties of B4C/A356 composites were optimized using artificial neural network (ANN) and non-dominated sorting genetic algorithm-II (NSGA-II).
References
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Contact and Rubbing of Flat Surfaces
TL;DR: In this article, the authors compared the deduced dependence of the experimental observables on the load with the experimental evidence and concluded that the most realistic model is one in which increasing the load increases both the number and size of the contact areas.
Journal ArticleDOI
Recent advances in friction-stir welding : Process, weldment structure and properties
TL;DR: In this article, the authors deal with the fundamental understanding of the process and its metallurgical consequences, focusing on heat generation, heat transfer and plastic flow during welding, elements of tool design, understanding defect formation and the structure and properties of the welded materials.
Journal ArticleDOI
Effect of welding parameters on tensile properties and fracture behavior of friction stir welded Al-Mg-Si alloy
Shuai Ren,Z.Y. Ma,Li Chen +2 more
TL;DR: In this paper, the fracture paths correspond with the lowest hardness distribution profiles in the joints, and the heat indexes cannot be used as parameters to evaluate the thermal input, mechanical properties and fracture mode.
Journal ArticleDOI
Improvement of mechanical properties of aluminum die casting alloy by multi-pass friction stir processing
TL;DR: In this paper, a microstructural modification of an aluminum die casting alloy by multi-pass friction stir processing (MP-FSP), which is a solid-state micro structural modification technique using a frictional heat and stirring action, is described.
Journal ArticleDOI
Effect of friction stir processing on the microstructure of cast A356 aluminum
TL;DR: In this paper, FSP was applied to cast A356 Al to modify the as-cast microstructure, which significantly influenced microstructural development in the processed zone of cast aluminum matrix.