Gamma Titanium Aluminide Alloys 2014 by Young-Won Kim, Wilfried Smarsly, Junpin Lin, Dennis Dimiduk,

By Young-Won Kim, Wilfried Smarsly, Junpin Lin, Dennis Dimiduk, Fritz Appel

This e-book is a set of papers offered on the 4th foreign Symposium on Gamma TiAl Alloys (ISGTA 2014) that was once held at the side of the 2014 Annual assembly of The Minerals, Metals & fabrics Society. Papers talk about and verify advances in program and implementation event in present alloys, fundamental
aspects in present gamma alloy fabrics know-how, new tactics improvement and evaluation, and rising new alloys, their potentials and obstacles, and breakthroughs.

Papers that originated within the panel dialogue of the symposium are meant to assist the clinical group discover the restrictions of present alloys fabrics and tactics and talk about attainable suggestions. Six subject parts chosen for this objective incorporated:

  1. Wrought-processed alloys: prestige, dilemmas and pathways to future
  2. Cast alloys for aero engine functions: prestige, matters, and limitations to advances
  3. Cast alloys for turbocharger wheels: prestige and limitations to frequent applications
  4. Emerging new alloys: justification, potentials, prestige, and future
  5. Novel strategies: justification, strength vs. attention matters, and future
  6. Future functions and real looking pathways to them

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H. Loretto, (Warrendale, PA: TMS: 1999), 175. 24. F. Appel, M. D. H. Paul, Mater. Sci. Eng. A, 493 (2008), 232. 25. F. Appel, M. Oehring, R. Wagner, Intermetallics, 8, (2000), 1283. 26. F. , Gamma Titanium Aluminides 2003, eds. Y-W. Kim, H. H. ), 139. 27. S. , Gamma Titanium Aluminides 2003, eds. Y-W. Kim, H. H. Rosenberger (Warrendale, PA, TMS: 2003), 207. 28. S. L. A. Lerch, Structural Aluminides for Elevated Temperatures, eds. Y-W. Kim et al. (Warrendale, PA, TMS: 2008), 39. 29. R. Hoppe and F.

22. U. Hecht, V. Witusiewicz, A. Drevermann and J. Zollinger, "Grain refinement by low boron additions in niobium-rich TiAl alloys," Intermetallics, 16 (2008), 969-978. 34. U. H. Moll. "Gas atomized y-titanium aluminide based alloys processing, microstructure and mechanical properties," Gamma Titanium Aluminides 1999, ed. Y-W. H. Loretto (Warrendale, PA: TMS, 1999), 301308. 23. D. Hu, C. Yang, A. Huang, M Dixon and U. Hecht, "Grain refinement in beta-solidifying Ti44A18Nb 1B," Intermetallics, 23 (2012), 49-56.

The transformation leads to particular interface structures, which have not been observed before in lamellar materials. At 850 °C the phase transformation is coupled with dynamic recrystallization, which degrades the lamellar morphology. More on this subject is provided in [40]. Within project work the performance of the TNB-V2 alloy under thermo-mechanical fatigue is currently investigated. Figure 18. Interface between the crystalline and amorphous phase in the outermost peened surface layer. Note the arrangement of like dislocations at the interface.

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