Journal ArticleDOI
Friction surfaced tool steel (H13) coatings on low carbon steel: A study on the effects of process parameters on coating characteristics and integrity
TLDR
In this article, a process parameter window was developed for satisfactory deposition of tool steel coatings, and the effects of process parameters on coating characteristics and integrity were evaluated, and it was shown that coating width is a strong function of mechtrode rotational speed, while coating thickness is mainly dependent on substrate traverse speed.Abstract:
Tool steel H13 was friction surfaced on low carbon steel substrates. Mechtrode (consumable rod) rotational speed and substrate traverse speed were varied, keeping the axial force constant. The effects of process parameters on coating characteristics and integrity were evaluated. A process parameter window was developed for satisfactory deposition of tool steel coatings. Coating microstructures were examined using optical microscopy, scanning electron microscopy, and transmission electron microscopy. Microhardness tests, shear tests, and bend tests were conducted on coatings. The results show that coating width is a strong function of mechtrode rotational speed, while coating thickness is mainly dependent on substrate traverse speed. Lower mechtrode rotational speeds results in wider coatings, while higher substrate traverse speeds produce thinner coatings. Thinner coatings exhibit higher bond strength than thicker coatings. Coatings show no carbide particles, yet exhibit excellent hardness (above 600 HV) in as-deposited condition due to their martensitic microstructure.read more
Citations
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Journal ArticleDOI
Friction stir based welding and processing technologies - processes, parameters, microstructures and applications: A review
G.K. Padhy,Chuansong Wu,S. Gao +2 more
TL;DR: Friction stir welding (FSW) has achieved remarkable success in the joining and processing of aluminium alloys and other softer structural alloys, however, it has not been entirely successful in the manufacturing of different desired materials essential to meet the sophisticated green globe requirements as discussed by the authors.
Journal ArticleDOI
Friction surfacing—A review
João Gandra,H. Krohn,Rosa Maria Mendes Miranda,Pedro Vilaça,Luísa Quintino,J.M.F. dos Santos +5 more
TL;DR: Friction surfacing (FS) is a solid state technology with increasing applications in the context of localized surface engineering and has been investigated mainly for producing fine grained coatings, which exhibit superior wear and corrosion properties.
Journal ArticleDOI
Performance analysis of friction surfacing
TL;DR: In this article, the influence of forging force, consumable tilt angle, travel and rotation speeds on interfacial bond properties and process efficiency of mild steel was investigated, and the applied load on the consumable rod was found essential to improve joining efficiency and to increase the deposition rate.
Journal ArticleDOI
Use of Friction Surfacing for Additive Manufacturing
TL;DR: In this paper, sound multi-layered deposits in various ferrous materials were realized using friction surfacing in both single-and multi-track approaches, and samples with fully enclosed internal cavities were also successfully produced.
Journal ArticleDOI
Dynamic recrystallization in friction surfaced austenitic stainless steel coatings
Ramesh Puli,G.D. Janaki Ram +1 more
TL;DR: In this article, the nature of dynamic recrystallization in friction surfaced austenitic stainless steel AISI 316L coatings was investigated using electron backscattered diffraction and transmission electron microscopy.
References
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Journal ArticleDOI
Friction welding – critical assessment of literature
TL;DR: Friction welding is now well established as a means of joining many different types of materials, because it has proved itself to be a reliable and economical way of producing high quality welds as mentioned in this paper.
Book
Introduction to fluid mechanics
TL;DR: In this article, the authors introduce the concepts through everyday examples, before moving on to the more involved mathematics, and provide examples from a broad range of engineering disciplines making this textbook suitable for all engineers studying fluid systems as part of their degree.
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Microstructural aspects of plasma transferred arc surfaced Ni-based hardfacing alloy
TL;DR: In this article, a nickel-base hardfacing alloy AWS NiCr-B was deposited on austenitic stainless steel substrate 316 LN using the plasma transferred arc-welding process.
Journal ArticleDOI
Friction surfacing: novel technique for metal matrix composite coating on aluminium–silicon alloy
TL;DR: In this paper, the wear and corrosion resistance of surface coating of SiCp reinforced AA 2124 aluminium alloy composite onto the surface of aluminium alloy A356 was investigated by using metallography, dry sliding wear and potentiodynamic polarisation testing.
Journal ArticleDOI
On the thermo-mechanical events during friction surfacing of high speed steels
TL;DR: In this paper, the authors describe the events that the matrix and carbides experience as the coating material pass from the coating rod to the substrate, in forming the coating, and the coating is observed to harden automatically within a few seconds of being deposited onto the cold substrate.