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Thursday, 11 June 2009

Malcolm McLean Memorial Symposium: “The superalloys: from processing to performance” Putting the Heat on Coal-Fired Power Generation_ Materials, Steel

In an earlier post (13 May 2009): Putting the Heat on Coal-Fired Power Generation_ Materials, Steels, Superalloys, Coatings to fight GHG Emissions? Information overload assistance. I chose to lean on the paper by T.B. Gibbons, brought to me by my professional Institute IOM3.

It allowed me to address, to some extent, my own preoccupation with a local project (Coal Resource reputed to be the largest in Europe) and to up-date my own early experience in the special steels and alloys field (Ni-based superalloys) also gained in a famous local company Imphy(58) France, now a jointly owned by Arcelor-Mittal for the steelmaking-melting activity and Eramet-Aubert and Duval superalloy activity.

Following exchange with the author Tom Gibbons cf. comments reported on the above post link comment section in post footnotes. Tom felt I should reference all the authors. In fact I did think of reviewing some other, if I found enough time-intricate serious stuff. I immediately returned to the conference papers only to realise that I had not scrolled to the bottom of the page of online papers. Instead of choosing one of 5, I had inadvertently chosen only one of 22 top notch papers!
In fact I was lucky, I believe that in the face of such rich resources I may have been overwhelmed by this impressive work, despite my own long experience and many not have opened a dialogue.

The full reference overview:

All 22 conference papers presented at the Malcolm McLean Memorial Symposium: “The superalloys: from processing to performance”) by internationally recognised experts in the field have been issued in a special addition of Materials Science and Technology Vol 25 Feb 2009. [almost 200 pages on all aspects of superalloy process and product metallurgy;from R&D, through primary and secondary melting, casting and single crystal growth, hot-transformation (rolling, forging etc), critical properties at high-temperatures in stressful and corrosive environments have all been addressed to meet the highest standards and client requirements and rightly claim the conference title superalloys: from processing to performance"

Other resources: cf. Videos on Superalloy special melt processing and hot transformation on the LHS vertical menu bar, "NEW: Video_Metallurgical Processes-Superalloys"

Related Posts:

1. Global Materials Resources-China's Journal of Materials Science and Technology and Acta Metallurgica Sinica plus comments on Superalloy Melting (9 June 2009)

2. Materials Science and Technology, Feb. 1985, Vol 1- 1st Issue.

Tuesday, 9 June 2009

SAGE Materials Science & Engineering Journals Current free trial runs till 30 June09

Sage encourages scientists, technologists and engineers to register for their latest free trials, which among others gives access to SAGE Materials Science & Engineering Journals until June 30, 2009. The Sage Mat Sci and Eng list is as follows:

•Adaptive Behaviour
•Building Services Engineering Research and Technology
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•High Performance Polymers
•Indoor and Built Environment
•International Journal of Damage Mechanics
•International Journal of Robotics Research
•International Journal of High Performance Comp Applications
•Journal of Bioactive and Compatible Polymers
•Journal of Biomaterials Applications
•Journal of Building Physics
•Journal of Cellular Plastics
•Journal of Composite Materials
•Journal of Elastonomers and Plastics
•Journal of Fire Protection Engineering
•Journal of Fire Sciences
•Journal of Industrial Textiles
•Journal of Intelligent and Materials Systems & Structures
•Journal of Plastic Film and Sheeting
•Journal of Reinforced Plastics and Composites
•Journal of Sandwich Structures and Materials
•Journal of Thermoplastic Composite Materials
•Journal of Vibration & Control
•Lighting Research & Technology
•Mathematics & Mechanics of Solids
•SIMULATION
•Textile Research Journal
•The International Journal of Structural Health Monitoring
•Transactions of the Institute of Measurement and Control
•Waste Management and Research

Sage invites interested readers to sign up now!

Global Materials Resources-China's Journal of Materials Science and Technology and Acta Metallurgica Sinica plus comments on Superalloy Melting

I am pleased to bring to the (further?) attention of the Materials Science and Engineering community, these two titles from China's Materials Science and Technology community,
1. The Journal of Materials Science and Technology
2. Acta Metallurgica Sinica.

Don't be put-off with either the slow download time not one or two broken links...

Cheers for their effort,

NB. I trust I may eventually receive a response from the author to my original enquiry which brought me to their site in the first place:

"Desulphurization during VIM Refining Ni-base Superalloy using CaO Crucible" in China's JMST.

Link to My Record of Comment

Comment reproduced:

"I am surprised that my earlier work is not referenced in such work: J. ALEXANDER: "Optimizing deoxidation and desulphurization during vacuum induction melting of alloy 718", & MATER. SCI. TECHNOL. 1985, 1(2), 167-70. Some online references may be found via my pages: http://materialsscienceengineeringdefined.blogspot.com/ Either search VIM or direct link: J. ALEXANDER: "Optimizing deoxidation and desulphurization during vacuum induction melting of alloy 718", & MATER. SCI. TECHNOL. 1985, 1(2), 167-70

Nice to know that others have become interested in such themes [after all this time]. "
Comment by the author of MATER. SCI. TECHNOL. 1985, 1(2), 167-70 and author of these weblog pages.

PS. There is still (understandably) much discretion by manufacturers on how to achieve "Clean, very low oxygen, dissolved(gas) and total oxygen, (the latter includes oxide particles) together with very low sulphur (mostly oxysulfides) not to mention the very low harmful trace elements obtained in today's large size VIM melting facilities despite low surface to volume ratio limiting mass transfer and chemical exchange withe the vacuum atmosphere.

Yet all the above melt specification, so important for superalloy manufacturing, can be achieved.

cf. Past Boiling Point, Materials World 1 June 2009 by Gaylord Smith, Brian Baker, Lewis Shoemaker of Special Metals Corporation, R & D, Huntingdon, West Virginia, USA who describe the developments of INCONEL alloy 740, suitable for use in the high temperature environments of supercritical boilers for energy generation.

Full article currently available only to IOM3 members, open to all with 2 month delay, I believe.

PS if the reader decides to joins IOM3 after reading my pages please mention your source and drop me a line.

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