caa a22 4500 477080502 CHVBK 20180405111448.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF00732042 doi (NATIONALLICENCE)springer-10.1007/BF00732042 Nondisruptive material sampling and mechanical testing [Elektronische Daten] [J. Foulds, R. Viswanathan] The aging and inservice degradation of industrial equipment has underscored a need for efficient and reliable evaluation of the suitability of such equipment for continued service. The structural components of traditional energy production facilities, such as fossil- and nuclear-fueled electric power plants, are prime examples of aging equipment for which integrity during extended service is of major concern. The paper describes a recently developed nondisruptive miniature material sample removal and test approach that is being applied to a range of operating electric power plant components from turbine generators to pressure vessels, and to petrochemical plant reactor vessels for inservice integrity assessment. Thein situ removal of a thin wafer-like sample (less than 25 mm in diameter and 2.5 mm in thickness) from the component surface generally has no effect on component integrity. The miniature specimen small punch (disk bend) test has been developed to mechanically test the as-removed material, and is being used to estimate the material tensile behavior and fracture properties (ductile-to-brittle transition temperature and fracture toughness) required for a reliable component integrity assessment. Plenum Publishing Corporation, 1996 Miniature sample removal nationallicence fracture toughness nationallicence small punch testing nationallicence disk bend nationallicence continuum toughness nationallicence steels nationallicence fracture appearance transition temperature nationallicence inservice integrity nationallicence Foulds J. Failure Analysis Associates, Inc., 149 Commonwealth Drive, 94025, Menlo Park, California aut Viswanathan R. Electric Power Research Institute, 3412 Hillview Avenue, 94303, Palo Alto, California aut Journal of Nondestructive Evaluation Kluwer Academic Publishers-Plenum Publishers 15/3-4(1996-12-01), 151-162 0195-9298 15:3-4<151 1996 15 10921 https://doi.org/10.1007/BF00732042 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00732042 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Foulds J. Failure Analysis Associates, Inc., 149 Commonwealth Drive, 94025, Menlo Park, California aut NATIONALLICENCE 700 1- Viswanathan R. Electric Power Research Institute, 3412 Hillview Avenue, 94303, Palo Alto, California aut NATIONALLICENCE 773 0- Journal of Nondestructive Evaluation Kluwer Academic Publishers-Plenum Publishers 15/3-4(1996-12-01), 151-162 0195-9298 15:3-4<151 1996 15 10921 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer