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Showing posts with label Applications. Show all posts
Showing posts with label Applications. Show all posts

Wednesday, 13 May 2015

EUROSUPERALLOYS 2014_ MATEC Web of Conferences. Open Access

 "EUROSUPERALLOYS 2014 – 2nd European Symposium on Superalloys and their Applications"
was held in Giens, France in May 2014.

Ten full sessions and eleven poster sessions were held on many (most) aspects of  Superalloys processing and properties. Superalloys, as the name implies, have superior properties.  They are used in applications involving high demands in performance and reliability namely strength high temperatures and corrosive environments such as those encountered especially in aircraft_aero-engines and improved energy production plant.


List of themes is as follows: please excuse the EU for allowing US spelling rather than the original and UK spelling behaviour


I did notice however that neither in these open access conference papers nor in web based available manufacturers specifications that the limits on such common trace elements as S (sulphur) and P (phosphorus) appeared high when compared with the practice and practise, of which I am aware. Admittedly dated! However I honestly report here that a couple of my ex-colleagues involved in such advance metallurgical processing and development in PM (powder metallurgy) requested "current S levels be lowered from a commonly specified 0.015%Smax. I was able to respond immediately and informed my client-collegues that the first trials had already proved successful as usual with "my" desulphurization  technique.

My peer reviewed paper is now freely available to our members of IOM3_The Institute of Materials Minerals and Mining entitled:

"Optimizing deoxidation and desulphurization during vacuum induction melting of  (Super) alloy 718. J.Alexander, Materials Science and Technology,(MST) published Feb. 1985.(MST's 2nd issue).

Now let's not be shy. My Indian colleagues (most of whom are retired today) from the MIDHANI, Ministry of Defence  plant in Hyderabad can honestly vouch for my desulphorization performance. As  guarent for the "three melt-shop know-how transfer contract, I was called upon to assist during start-up in Hyderabad. Unfortuneately the only raw material for the very low P (phosphorus) grade to be made had about 3times mor P than our recommended raw material. Well, under some pressure from the then, chairman no less, I accepted the challenge and brought the damed thing into the aimed spec.

I was never informed whether the final product achieved the result originally set in the "Know-how" agreement.

Post Scriptum:
Thing must have sorted themselves out considering that very recently India has also bought the french jet fighter The Rafale and for good or bad Mr. Mittal has bought over the company where I had enormous fun both at work and for pleasure. I took up my soccer game after a too long lay-off during studies and early laboratory research work..

I do hope you enjoy sharing my experience.

 Best regards.




EUROSUPERALLOYS 2014 – 2nd European Symposium on Superalloys and their Applications

MATEC Web of Conferences:  PS this is a window to a much larger peer reviewed open access web library

'via Blog this'

Monday, 26 October 2009

Materials Science, Non Destructive Testing, NDT using Microwaves with PC laptop imagery, News 26Oct 09 from Missouri University of Science and Technology (MST) could help the Medical Practitioner detect cancer or burns

Missouri University of Science and Technology (MST) has developed a handheld camera that uses microwave signals to non-destructively peek inside materials and structures in real time.

The compact system can produce synthetically focused images of objects - at different planes in front of the camera - at speeds of up to 30 images per second. A laptop computer then collects the signal and displays the image in real-time for review. The entire system, powered by a battery similar to the size used in laptops, can run for several hours, rendering it portable.

"In the not-so-distant future, the technology may be customized to address many critical inspection needs, including detecting defects in thermal insulating materials that are found in spacecraft heat insulating foam and tiles, space habitat structures, aircraft radomes and composite-strengthened concrete bridge members," says Dr. Reza Zoughi, the Schlumberger Distinguished Professor of Electrical Engineering at Missouri S&T, who is leading the research effort.

The team believe that their work could help medical professionals detect and monitor a variety of skin conditions in humans, including cancer and burns, security personnel could detect concealed contraband (such as weapons) or again home owners could detect termite damage.

The idea for developing a real-time, portable camera came to Zoughi in 1998 while he was on sabbatical in France. In 2007, Zoughi's research group completed the first prototype and has spent the past two years increasing its size and overall efficiency.

"Unlike X-rays, microwaves are non-ionizing and may cause some heating effect," Zoughi says. "However, the high sensitivity and other characteristics of this camera enables it to operate at a low-power level."

More:
Various new sources included Yahoo Alerts, Indian and Asian press and physorg.com in particular for the video presentation and original new and web sources
PHYSORG

en référence à :

"The idea for developing a real-time, portable camera came to Zoughi in 1998 while he was on sabbatical in France. In 2007, Zoughi's research group completed the first prototype and has spent the past two years increasing its size and overall efficiency.
"Unlike X-rays, microwaves are non-ionizing and may cause some heating effect," Zoughi says. "However, the high sensitivity and other characteristics of this camera enables it to operate at a low-power level.""
- New research brings 'invisible' into view (w/ Video) (afficher sur Google Sidewiki)

High Purity Cr sources for Superalloys

Energy for th Future:Phil.Trans.A-Vol. 365, N° 1853 / April 15, 2007, curtesy The Royal Soc. London

Engineered foams and porous materials: Phil Trans A. Vol 364, N° 1838 / 06 curtesy_The R Soc. Lond