This symposium provides a forum for the presentation of fundamental research
advances and technological progress in the understanding, processing, and
applications of refractory metals. Refractory metals are defined as those
metallic elements with melting temperatures in excess of 2123 K (1850�C).
Refractory metals are of technological importance for their resistance to
extreme high temperatures and extreme environments. Research of interest
includes alloy development, microstructure evolution, and correlations with
properties, both experimental and theoretical. Technological advances in
processing of refractory metals and their alloys and applications in energy
generation, nuclear fusion, transportation, space and other sectors are
likewise of interest. New developments of interest include composite materials
based on refractory metals, such as silicide alloys or composites between
refractory and non-refractory metals, and other related alloy systems.
Processing methodologies and techniques involving welding, brazing and powder
metallurgy are also of interest. Presentations that communicate results from
academia, national laboratories, and industry are welcomed.
Nickel-based superalloys possess an excellent combination of high temperature
mechanical properties and environmental resistance, resulting in their
wide-spread use in challenging environments found in aircraft engines,
land-based power generation gas turbines, nuclear power generation systems, and
chemical/petrochemical plants. However, there is a strong need of materials
that can enable a revolutionary increase in temperature capability beyond these
Ni-base superalloys. Refractory metal-based alloys and refractory metal-based
intermetallics are examples of such candidate materials. The goals of this
symposium are to discuss recent progress in the development of high temperature
material systems that can offer capabilities beyond current Ni-base superalloys
and to understand their status, entitlement and limitations, as well as to
understand challenges in the use and development of advanced Ni-base
superalloys. Topics for discussion include thermodynamics, microstructural
design and long term stability, processing, physical properties, mechanical
behavior, and environmental resistance of (1) current and next generation
Ni-base superalloys, (2) refractory metal based materials, (3) intermetallic
based materials, (4) High Entropy/Compositionally complex/Multi-principal
element alloys, and (5) coatings.
This symposium provides a forum for the presentation of fundamental research
advances and technological progress in the understanding, processing, and
applications of refractory metals. Refractory metals are defined as those
metallic elements with melting temperatures in excess of 2123 K (1850 �C).
Refractory metals are of technological importance for their resistance to
extreme high temperatures and extreme environments. Research of interest
includes alloy development, microstructure evolution, and correlations with
properties, both experimental and theoretical. Technological advances in
processing of refractory metals and their alloys and applications in energy,
transportation, and other sectors are likewise of interest. New developments
of interest include composite materials based on refractory metals, such as
silicide alloys, and other related alloy systems. Processing methodologies and
techniques involving welding, brazing and powder metallurgy are also of
interest. Presentations that communicate results from academia, national
laboratories, and industry are welcomed. Presentations by students are highly
encouraged.