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The Effects Of Annealing On The Microstructure And Mechanical Properties Of Fe28ni18mn33al21
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Book Synopsis The Effects of Annealing on the Microstructure and Mechanical Properties of Fe28Ni18Mn33Al21 by :
Download or read book The Effects of Annealing on the Microstructure and Mechanical Properties of Fe28Ni18Mn33Al21 written by and published by . This book was released on 2015 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, As-cast Fe28Ni18Mn33Al21, which consists of aligned, 50 nm, (Ni, Al)-rich B2, and (Fe, Mn)-rich f.c.c. phases, was annealed at a variety of temperatures up to 1423 K and the microstructure and mechanical properties were examined. It was shown that the as-cast microstructure arises from a eutectoid transformation at ~1300 K. Annealing at temperatures d"073 K produces [beta]-Mn-structured precipitates and hardness values up to 816 HV, while annealing at temperatures>1073 K leads to dramatic coarsening of the two-phase B2/f.c.c. microstructure (up to 5.5 æm after 50 h at 1273 K), but does not lead to [beta]-Mn precipitation. Interestingly, annealing at temperatures>1073 K delays the onset of [beta]-Mn precipitation during subsequent anneals at lower temperatures. Coarsening the B2/f.c.c. lamellar structure by annealing at higher temperatures softens it and leads to increases in ductility from fracture before yield to ~8 % elongation. Finally, the presence of [beta]-Mn precipitates makes the very fine, brittle B2/f.c.c. microstructures even more brittle, but significant ductility (8.4 % elongation) is possible even with [beta]-Mn precipitates present if the B2/f.c.c. matrix is coarse and, hence, more ductile.
Book Synopsis The Effect of Annealing on the Microstructure and Tensile Properties of Ni-Al-Fe Alloy by : E. Pekarskaya
Download or read book The Effect of Annealing on the Microstructure and Tensile Properties of Ni-Al-Fe Alloy written by E. Pekarskaya and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concerted European Action on Magnets (CEAM) by : I.V. Mitchell
Download or read book Concerted European Action on Magnets (CEAM) written by I.V. Mitchell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: The beneficial impact of the European communities involvement in scientific research and technology is wide-ranging and pervasive. There are high hopes of major advances in scientific knowledge and technological processes, while the emergence of a genuine tradition of collaborative research holds out great and continuing promise for the future. Close, frequent and long-term cooperation between universities, research centres and industry is already generating new synergies, forging a truly European scientific community. Many of tomorrows industrial developments, destined to be determinant for our economic success and prosperity, will spring from this research. The Concerted European Action on Magnets - CEAM - project is a prime example of collaborative research and development. Financed from the Communities STIMULATION action and implemented with the help of EURAM, the advanced materials programme, CEAM will bestow great benefits on European industrial competitiveness, providing a channel for high quality basic research to find its way into commercial products. This remarkable cooperative enterprise brought t~gether 58 laboratories and more than 120 scientists and englneers in a sustained thirty month effort. It spanned every aspect of new iron-based high performance magnets from theoretical modelling of their intrinsic magnetic properties to the design and construction of novel electrical devices and machines. Besides adding a new European dimension to advanced magnetic technology, CEAM also ensured that a whole new generation of young researchers and technicians have been trained in applied magnetism.
