|Author||Chen, W. ♦ Wahi, R. P. ♦ Wagner, W. ♦ Petry, W.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||MATERIALS SCIENCE ♦ NIMONIC PE16 ♦ MICROSTRUCTURE ♦ AMBIENT TEMPERATURE ♦ DEFORMATION ♦ FATIGUE ♦ FCC LATTICES ♦ HEAT RESISTING ALLOYS ♦ NEUTRON DIFFRACTION ♦ PRECIPITATION HARDENING ♦ SMALL ANGLE SCATTERING ♦ TRANSMISSION ELECTRON MICROSCOPY ♦ ALLOY-NI43FE33CR16MO3 ♦ ALLOYS ♦ ALUMINIUM ALLOYS ♦ BORON ADDITIONS ♦ BORON ALLOYS ♦ CHROMIUM ALLOYS ♦ COBALT ADDITIONS ♦ COBALT ALLOYS ♦ COHERENT SCATTERING ♦ COPPER ADDITIONS ♦ COPPER ALLOYS ♦ CORROSION RESISTANT ALLOYS ♦ CRYSTAL LATTICES ♦ CRYSTAL STRUCTURE ♦ CUBIC LATTICES ♦ DIFFRACTION ♦ ELECTRON MICROSCOPY ♦ HARDENING ♦ HEAT RESISTANT MATERIALS ♦ IRON ALLOYS ♦ MATERIALS ♦ MECHANICAL PROPERTIES ♦ MICROSCOPY ♦ MOLYBDE ♦ SCATTERING ♦ Metals & Alloys- Structure & Phase Studies|
|Abstract||A nickel-base superalloy Nimonic PE16 shows softening when subjected to low cycle fatigue (LCF) at room temperature. In this work, small-angle neutron scattering (SANS) and transmission electron microscopy (TEM) were used to study the morphology of gamma-prime precipitates in the Nimonic PE16 after LCF at room temperature. In TEM dark-field images using superlattice reflections, deformation bands free of gamma-prime precipitates in the Nimonic PE16 after LCF at room temperature. In TEM dark-field images using superlattice reflections, deformation bands free of gamma-prime precipitates are observed. SANS measurements allowed the characterization of the disappeared precipitates with regard to their average size, size distribution and volume fraction by comparing the scattered intensities of loaded and unloaded specimens. An analysis of the results shows that the gamma-prime precipitates within the deformation bands have completely dissolved and not just disordered or cut to sizes smaller than the TEM resolution limit. 14 refs.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Journal||Acta Metallurgica et Materialia|
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
For any issue or feedback, please write to email@example.com