Journal ArticleDOI
Ductilizing of cast hypereutectic Al–17%Si alloy by friction stir processing:
Nitin Saini,Chandan Pandey,Dheerendra Kumar Dwivedi +2 more
- Vol. 232, Iss: 6, pp 696-701
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In this paper, a multi-pass friction stir processing was utilized for the as-cast Al-17%Si alloy, which resulted in the formation of refining cast microstructure with negligible porosity.Abstract:
In present research work, multi-pass friction stir processing was utilized for the as-cast Al–17%Si alloy. The multi-pass friction stir processing reproduced the aluminum (Al) matrix with a uniform distribution of the ultra-fine silicon (Si) particles. The multi-pass friction stir processing also resulted in the formation of refining cast microstructure with negligible porosity. The significant reduction in silicon particle size was measured and it reduced from 204 µm to 0.86 µm after the first pass and up to 0.30 µm after two pass friction stir processing. The frequency of fine Si particles was increased after two pass friction stir processing as compared to single pass friction stir processing. The engineering stress–strain curves revealed a significant enhancement in ductility and strength after one and two passes of friction stir processing as compared to the as-cast alloy. After one and two passes of friction stir processing, the ultimate tensile strength of as-cast alloy was enhanced by 24% and 31% ...read more
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Particulate metal matrix composites and their fabrication via friction stir processing – a review
TL;DR: Particulate-reinforced metal matrix composites are of particular interest because of their ease of fabrication, low cost, and isotropic properties as mentioned in this paper, and Friction Stir Processing offers a promising alter...
Journal ArticleDOI
Mechanical Properties and Wear Behavior of Zn and MoS2 Reinforced Surface Composite Al- Si Alloys Using Friction Stir Processing
TL;DR: In this article, a friction stir processing (FSP) is used for refinement of microstructure, improvement of material's mechanical properties, and production of surface layer composites.
Journal ArticleDOI
An experimental analysis and optimization of process parameters of AA6061 and AA7075 welded joint by TIG+FSP welding using RSM
Husain Mehdi,Rajiv S. Mishra +1 more
TL;DR: In this article, empirical relationships were developed to predict the tensile strength, percentage elongation, micro-hardness and residual stress of the TIG+FSP welded joint of AA6061 and AA7075 at a 95% confi
Journal ArticleDOI
Effect of Friction Stir Processing on Gas Tungsten Arc-Welded and Friction Stir-Welded 5083-H111 Aluminium Alloy Joints
Sipokazi Mabuwa,Velaphi Msomi +1 more
TL;DR: In this article, a comparative analysis was performed on the processed and unprocessed gas tungsten arc-welded and friction stir-processed joints of similar aluminium alloy 5083-H111.
References
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Book
Friction Stir Welding and Processing
Rajiv S. Mishra,Zongyi Ma +1 more
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Journal ArticleDOI
The conflicts between strength and toughness
TL;DR: This work focuses on the interplay between the mechanisms that individually contribute to strength and toughness, noting that these phenomena can originate from very different lengthscales in a material's structural architecture.
Journal ArticleDOI
Friction stir welding of dissimilar alloys – a perspective
TL;DR: In this article, the authors assess the status of friction stir welding of dissimilar alloys and identify the opportunities and challenges for the future, and present a special issue of Science and Technology of Welding and Joining.
Journal ArticleDOI
Effects of friction stir processing on mechanical properties of the cast aluminum alloys A319 and A356
TL;DR: In this article, surfaces of A319 and A356 castings were treated by friction stir processing to reduce porosity and to create more uniform distributions of second-phase particles, which increased the ultimate tensile strengths, ductilities, and fatigue lives of both alloys.
Journal ArticleDOI
Cutting fluids: Part I. Characterisation
TL;DR: The selection and application of cutting fluids in industry have not always been accomplished in an optimal manner as mentioned in this paper, however, when properly applied, cutting fluids can increase productivity and reduce costs by making possible the use of higher cutting speeds, higher feed rates and greater depths of cut.