Superplasticity of a multiphase refractory Mo-Si-B alloy

Journal Article · Sat Dec 31 23:00:00 EST 2005 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2006.05.033· OSTI ID:1003720

Jehanno, P. ^[1]; Heilmaier, M. ^[2]; Saage, H. ^[2]; Heyse, Hartmut ^[3]; Boening, Mike Boening ^[4]; Kestler, Heinrich ^[4]; Schneibel, Joachim H ^[5]

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1. Plansee SE, Technologiezentrum, Austria
2. University of Magdeburg, Germany
3. Institute of Materials and Joining Technology, Germany
4. Technology Center, Austria
5. ORNL

Mo-Si-B alloys consisting of a Mo solid solution and the intermetallic phases Mo{sub 3}Si and Mo{sub 5}SiB{sub 2} were synthesized by mechanical alloying followed by sintering and hot isostatic pressing to field an ultra-fine (triplex) microstructure with all three phases being in the sub-micron range. at temperatures as low as 1300C the material exhibits superplasticity, with tensile strain to failures of 200-400% at strain rates as high as 10{sup -3}s{sup -1}.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1003720
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 6 Vol. 55; ISSN 1359-6462
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
HOT PRESSING
MICROSTRUCTURE
SINTERING
SOLID SOLUTIONS
STRAIN RATE
STRAINS