Under the influence of temperature and stresses, the heat resistant materials react by creeping. Boiler components subjected to creep have a limited lifetime. Creep and material structure evolution are tightly related and according to this rule a number of studies have been performed in order to relate micro structural investigation and service exposure or residual life. The determination of th...

The electron microprobe (EMP) is an electron optical instrument in which compositional and topographic information are obtained from regions ~lban in diameter on a specimen. Photographs of compositional and topographic changes in 1-mm 2 to 20-/din 2 areas on various types of specimens can also be obtained which are strikingly similar to optical photomicrographs. This paper discusses the various...

Clarke, Roy S., Jr., and Joseph I. Goldstein. Schreibersite Growth and Its Influence on the Metallography of Coarse-Structured Iron Meteorites. Smithsonian Contributions to the Earth Sciences, number 21, 80 pages, 28 figures, 20 tables, 1978. —The role that schreibersite growth played in the structural development process in coarse-structured iron meteorites has been examined. The availability ...

Abstract Excavations at the Chalcolithic site Fazael in central Jordan Valley uncovered a large number of metal items, many them polymetallic copper alloys cast lost wax technique. Metallography and SEM–EDS analysis on subset assemblage confirm previous notions metallurgy Southern Levant but extend significantly three aspects: The is slightly depleted its arsenic content compared to assemblages...

Clarke, Roy S., Jr., and Joseph I. Goldstein. Schreibersite Growth and Its Influence on the Metallography of Coarse-Structured Iron Meteorites. Smithsonian Contributions to the Earth Sciences, number 21, 80 pages, 28 figures, 20 tables, 1978. —The role that schreibersite growth played in the structural development process in coarse-structured iron meteorites has been examined. The availability ...