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dc.contributorNational Institute of Standards and Technology, Metallurgy Division, Gaithersburg, MD 20899-8555, USAen_US
dc.contributorGeneral Electric Company, GE Global Research, 1 Research Circle, Niskayuna, NY 12309, USAen_US
dc.contributor.authorCampbell, Carelyn
dc.contributor.authorZhao, J-C
dc.contributor.authorHenry, M. F.
dc.identifier.citationMaterials Science and Engineering A 407 (2005) 135–146en_US
dc.description.abstractFour Ni-base superalloy diffusion couples with multiphase regions were studied. The diffusion couples contained single-phase (gamma ), two phase( gamma +MC carbide) and three-phase ( gamma + gamma prime+MC carbide) regions. Measured average composition profiles were in good agreement with the diffusion simulation predictions. The measured and predicted phase fraction profiles showed similar trends; however, there were some discrepancies in the predicted position of the gamma +gamma prime + MC/ gamma +MC boundary. Phase fraction profiles and optical metallography were used to determine the type and direction of the moving phase region boundaries.en_US
dc.description.sponsorshipThis work was supported by the Defense Advanced Research Project Agency (DARPA) under the accelerated Insertion of Materials (AIM) Program (Grant number F33615-00-C-5215) with Dr. L. Christodoulou as the project manager and Dr. Rollie Dutton as the project monitor. The authors would like to express their appreciation to N. Saunders for the use of his thermodynamic database for Ni alloys and to Louis A. Peluso, Rebecca Casey, Mitch Hammond and Karen Denike for their experimental support.en_US
dc.relation.haspartCampbell CE, Boetttinger WJ, Kattner UR (2002) Development of a diffusion mobility database for Ni-base superalloys. Acta Mater 50:775-792 DOI:
dc.relation.haspartCampbell CE, Zhao JC, Henry MF (2004) Comparison of experimental and simulated multicomponent Ni-base superalloy diffusion couples. J Phase Equil Dif 25 (1):6-15. DOI:
dc.rightsCC0 1.0 Universal*
dc.subjectComputational File Repository Categories::PROPERTY CLASSES::Kinetics::Diffusionen_US
dc.subjectComputational File Repository Categories::ALLOY SYSTEMS::Ni Alloysen_US
dc.subjectComputational File Repository Categories::SOFTWARE::Dictra (General)en_US
dc.subjectmulticomponent diffusionen_US
dc.titleExamination of Ni-base superalloy diffusion couples containing multiphase regionsen_US

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CC0 1.0 Universal
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