Book ChapterDOI
Investigation of Process Parameters for Friction Stir Processing (FSP) of Ti-6Al-4V Alloy
Sandip Chougule,Digvijay Sheed,R. K. P. Singh,N. Prabhu,B. P. Kashyap,Kaushal Jha +5 more
- pp 53-64
TLDR
In this paper, the effect of tool traverse speed and tool rotation speed on microstructure evolution in the stir zone (SZ) of the Ti-6Al-4V alloy was carried out.Abstract:
In the current work friction stir processing of the Ti-6Al-4V alloy was carried out. Various process parameters (tool traverse speed and tool rotation speed) were studied for successful FSP of Ti-6Al-4V. The process parameters were identified using macrostructure observation on the surface of processed plate and microstructure evolution in the stir zone (SZ) of the FSP specimen. The effect of tool traverse speed and tool rotation speed on microstructure evolution in the SZ, thermo-mechanically affected zone (TMAZ) and heat affected zone (HAZ) were studied. The microstructure transformation from initial elongated α structure to prior β grains, with α layer grain boundary consisting of mixture of acicular α′ and very fine lamellar α/β colonies, was observed at SZ. This was the case for wide range of variations in parameters except for the tool rotation speed of 600 rpm and traverse speed of 60 and 100 mm/min. Under this combination of parameters, the bands of DRX α and transformed β structure were observed to evolve at SZ.read more
References
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Journal ArticleDOI
Friction stir process as a new manufacturing technique of ultrafine grained aluminum alloy
Journal ArticleDOI
Microstructural characteristics and mechanical properties of friction stir welded joints of Ti–6Al–4V titanium alloy
TL;DR: In this article, the α+β titanium alloy, Ti-6Al-4V, was friction stir welded at a constant tool rotation speed of 400-rpm to obtain defect-free welds with welding speeds ranging from 25 to 100mm/min.
Journal ArticleDOI
Microstructure Evolution during Friction Stir Welding of Mill-Annealed Ti-6Al-4V
Adam L. Pilchak,Adam L. Pilchak,Adam L. Pilchak,W. Tang,H. Sahiner,Anthony P. Reynolds,James C. Williams +6 more
TL;DR: In this paper, mill-annealed Ti-6Al-4V plates were successfully friction stir welded over a wide range of processing parameters using a tungsten-1/pct La2O3 tool.
Journal ArticleDOI
Development of nanocrystalline structure in Cu during friction stir processing (FSP)
TL;DR: The characteristics of microstructures at various locations behind the pin tool extraction site were studied in copper after FSP that had been conducted with continuous quenching to enhance cooling rates as discussed by the authors.
Journal ArticleDOI
The Joint Characteristics of Friction Stir Welded AZ91D Magnesium Alloy
TL;DR: In this article, the microstructural development of friction stir welding on an AZ91D magnesium alloy and the mechanical properties of the welds were investigated using optical and scanning electron microscopes.
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